Why does my GM 4.3L engine not start?

No Start Condition Basics There are three very basic components that the engine, in your GM vehicle, needs to start and they are: Air, Fuel and Spark. When your 4.3L, 5.0L or 5.7L GM vehicle cranks but does not start, it’s because one of these components is missing from the mix.

What causes a Chevy pickup to hard start?

If after you have circled the key a few time the engine starts normally then you now know for sure you have a fuel pressure leak down problem causing your hard start. If this video was helpful please help support my youtube channel by subscribing here: https://www.youtube.com/channel/UChCX…

How long does it take to fire a hard start Chevy?

Good Morning island auto, well your mention of that kind of pressure does sound a bit high, but the gauge you are using may have an error, generally even if the fuel did drain back to the tank it only takes a few seconds to be replenished and even if the system contains air, I would expect some firing to happen initially.

How long does a Chevy 4.3L Vortec engine last?

3 vortec is a very strong and reliable motor, proven by it being the longest lasting production vortec engine. Generally, these engines are extremely capable of lasting up to 300,000 miles.

How to troubleshoot a no start GM 4.3L pick up?

Testing a Cranks but Does Not Start condition on your GM 4.3L, 5.0L, 5.7L pick up, van or SUV is not that hard to do, if you have a solid diagnostic strategy. In this article I’ll show you the basics of testing such a problem.

How to troubleshoot a Chevy 4.3 engine?

1 Common Problems. A common complaint with the Chevy 4.3 engine is that it doesn’t idle well, it’s loud and makes awkward noises. 2 Idle Air Control Valve and Throttle Conrtol Switch. Open up the hood and look at all the wires, spark plugs, tubes, vacuum lines and valves. 3 Check Your Oil. 4 Vehicle Fuilds.

What does it mean when your car says no start?

A No Crank Condition means that the engine is not turning over when you turn the key to crank the engine. The most common problem, that causes this condition is a failed starter motor. If your vehicle is suffering a No Crank Condition, this tutorial may be a good starting point: How To Test The Starter Motor (GM 4.3L, 5.0L, 5.7L).

What to do if your car won’t start with starter fluid?

Check for spark with a spark tester. If spark is present at all 8 cylinders, the next step is to see if the engine starts with starter fluid. If spark is NOT present at all 8 cylinders, then the Passlock system is not the cause of the no start condition. Start the engine with starter fluid.

How to troubleshoot the fuel pump on a GM 4.3L?

Troubleshooting the fuel pump (GM 4.3L, 5.0L, 5.7L) (for ‘Spider’ fuel system equipped vehicles). How To Test The Fuel Pump On GM TBI Fuel Systems (for throttle body fuel injection fuel system equipped vehicles).

Why does my Chevy Silverado not turn over?

Have a 99 Chevrolet 4×4 Silverado with 5.0 it was hot wired by previous owner. It did crank but replaced the steering wheel column with new wires and now it will turn over but won’t start. The fuel pump is connected directly to the battery.

Can a Chevy C / K 1500 engine not start?

Chevrolet C/K 1500 Questions – truck will not start, engine turns, but does not fire at all. – CarGurus truck will not start, engine turns, but does not fire at all. other computer-related things that could be interfering?

What kind of engine does a 1997 Silverado have?

I have a 1997 Silverado with the 4.3 vortec motor. About 2 weeks ago my son was driving it and the way he explained it was the engine completely died on him, causing his guages to malfunction and his steering wheel to lock up. I had it towed to my house and started going through the normal checks; fuses, relays, spark, compression, fuel….etc.

What causes gas tank to loose oil pressure?

Engine oil pressure activates the switch on the top back of the engine. Contacts in this switch close and send 12 volts to the fuel pump. The system will stay in this configuration until you turn the key off or the engine looses oil pressure.

What happens when you have a fuel line burst?

The pressure switch is in the circuit as a safety feature. If you have fuel line burst or get cut in an accident, the engine will shut down due to the loss of fuel pressure. With the engine shut down the oil pressure will drop to zero and deactivate the switch, shutting down the fuel pump.

Where is the oil pressure switch on an 87 EFI?

On an 87 EFI system you will have an oil pressure sending unit and an oil pressure switch. The sending unit is located down by the oil filter and sends an electrical signal to the oil pressure gauge. The switch is on the top, back of the engine, almost under the distributor.

What should the fuel pressure be on a Chevy Cheyenne?

93 Chevy Cheyenne k3500, if it is running the Chevy vortec engine the fuel pump pressure is way too low, should be 56 psi+ depending on CSFI/CPI system or it will not start or open injectors, with out the aid of starting fluid. The factory manual specifies that the fuel pressure for the CSFI system should be between 56-62 PSI.

Why is my GM fuel pump going bad?

In this tutorial I’m going to show you two different methods to verify if the no start condition on your 4.3L, 5.0L, or 5.7L throttle body fuel injection (TBI) GM vehicle is due to a lack of fuel, which usually means that the fuel pump has gone bad. One method involves using just starting fluid and the other involves using a fuel pressure gauge.

Can a bad fuel pump start a GM Spider?

If you need to test the ‘spider’ equipped GM pickups or SUVs, the following tutorial will help: Troubleshooting The Fuel Pump (GM 4.3L, 5.0L, 5.7L). A bad fuel pump will make your 4.3L, 5.0L, or 5.7L throttle body fuel injected pickup or SUV crank but not start. Here are some more specific symptoms:

What to do if your GMC Sierra won’t start?

Let sit for awhile, turn key, won’t start, turn key off, turn key again, starts up and runs great. A week later, same issue. I went to work everything great, went to go home, wouldn’t start. Tried to turn key a few times, won’t start, let sit about 15 min., turned key, started up. Stop to get gas 15 min. later, wouldn’t start. Stranded for 2 hours.

What to do if your GMC Yukon Denali won’t start?

48 people found this helpful. I have a 2000 Gmc Yukon denali, 5.7 litter, it cranks but won’t start it does have spark in coil, but No spark in #1 sparplug I put new distributor and new coil new sparplugs, new plug wires,checked out fuses there all good]

Can a GM car still start with a misfire?

If you have one or just two readings that are under 90 PSI your GM vehicle will still start and run, albeit with a misfire condition. I’ve written a ‘How To Do a Compression Test’ article that you may find useful.

Are there any problems with the Chevy 4.3 Vortec engine?

The 4.3 Vortec engines made from 1996-2002 (L35 and LF6) have been reported to have engine knock problems. In a properly functioning engine, fuel burns in even pockets instead of all at once. The pockets burn in even timing, in sync with engine cycles. Engine knock occurs when the fuel burns unevenly and out of sync with the engine cycles.

Why does my car not start when I start it?

There are three very basic components that the engine, in your GM vehicle, needs to start and they are: Air, Fuel and Spark. When your 4.3L, 5.0L or 5.7L GM vehicle cranks but does not start…it’s because one of these components is missing from the mix.

What causes a Chevy Vortec distributor to not turn?

The cap is prone to warping from the heat, which results in the cap rubbing against the distributor rotor button. This causes the rotor bushing to wear out and the distributor begins to no longer be able to turn. The simplest option here to fix this problem is upgrading to a distributor that has an aluminum housing on it.

What to do if your Chevy S10 won’t start?

EASY…Popping, Vapor locking…Jump time??… 1995-2008 – YouTube If playback doesn’t begin shortly, try restarting your device. Videos you watch may be added to the TV’s watch history and influence TV recommendations. To avoid this, cancel and sign in to YouTube on your computer.

Where is the idle control valve on a Chevy Vortec?

The idle control valve sits on the throttle body and is responsible for adjusting the amount of air that enters the engine at idle, ultimately controlling engine idle speeds. At idle, the valve blocks a small amount of air from entering the engine, keeping idle RPM’s low.

What’s the difference between no start and no crank?

It’s important to know that a no crank and a no start condition are not the same thing since this article only concentrates on testing a no start condition. In layman’s terms, a No Start Condition means that your vehicle’s starter motor is cranking the engine but the engine is not starting.

Why does my Silverado 4.3 won’t start?

2005 4.3 150,000 miles won’t start. Timing is ok,fuel pressure well above 50 lbs, getting fire, I can smell gas from throttle body and also from the exhaust (after cranking a few minutes).

Why is there no fuel in the tank?

I replaced the fuel pump, fuel filter, and tank selector switch, but still no fuel. Other possible causes of your lack of fuel issue could be the fuel injectors or an electrical problem. If the fuel injector fuse (s) are blown due to a wiring issue, this may cause your problem.

Why does my car not have enough fuel?

Other possible causes of your lack of fuel issue could be the fuel injectors or an electrical problem. If the fuel injector fuse(s) are blown due to a wiring issue, this may cause your problem.

Why does my Vortec engine not start at all?

11 people found this helpful. check your fuel pressure. The vortec engines are known to have the fuel pressure regulator fail and leak into the intake. At the worst of it the vehicle cant start at all, it will flood a couple cylinders and not feed fuel to the rest. This can be checked for by checking fuel pressure and leakdown rate.

What causes a car to have a no start condition?

The engine pistons and valves (and all the other related components like: timing chains, etc.) are the ones responsible for the induction of the fresh air the engine needs for the combustion process. Although rare, internal engine mechanical problems can and do cause no-start conditions. Blown head gasket. Blown engine. 4.)

Why does my 350 Chevy truck not start?

350 chevy truck cranks but won’t start – Maintenance/Repairs – Car Talk Community Truck ran fine with no indication of problem. When outside temp. dropped in teens one morning it wouldn't start.

What to do if your Chevy truck won’t crank?

Found no spark. Replace HEI distributor and no start. Have replaced spark plugs, had starter and battery tested. All are good. Edelbrock 600cfm carb is 6 months old. Truck was completely restored 20000 miles ago so mechanically it’s a new truck. I have no idea why it won’t crank. Buying Guides Deals Car Reviews Repair Shops Community Cars A-Z

Why does my 2002 Chevy Silverado not start?

If you’re in a situation where you turn the key in your 2002 Chevy Silverado and the truck won’t start, a number of potential explanations exist for why it may not start. By checking several key components in your Silverado, you can pinpoint the problem yourself and possibly fix it.

What causes engine knock on a 4.3L Vortec?

Engine knock can be caused by a ton of factors, such as low-grade fuel, bad spark plugs, carbon build-up, etc. Engine knock is terrible for your engines internals and can cause serious damage to the pistons and to the cylinder walls. On the 4.3L vortec, the cause of the engine knock has not necessarily been figured out, still to this day.

What causes a car to not start with no spark?

Without spark, the engine will Crank but Not Start. The ignition system of the GM vehicles covered by this article use a distributor type system. In my experience, the most common component failures, of the ignition system that cause a No Start No Spark Condition are: Distributor cap. Crank sensor.

Why are the cranks on my 2006 Chevy Silverado not working?

SOLVED: 2006 chevy silverado cranks but wont start. – Fixya 2006 chevy silverado cranks but wont start. Towed to repair shop. Diagnostics said it was electrical. Replaced a #7 20 amp fuse. Kept at shop for 3 days. Started ok.

Why does my Vortec 4300 4.3 not start?

Your crank sensor is fine. You would have no spark at all if there was a problem with it. Cam sensor is for injector timing and WILL not cause a no start issue. You may have got the distributor in the wrong spot when you re installed it. A very common problem when doing an intake gasket. The timing light is telling me that the timing is dead on.

What causes a car to have a hard start?

As mentioned previously on this site, some people have experienced where only 5 to 10 PSI low caused starting problems on higher pressure systems. But this problem clears when the vehicle has been run, so that makes that kind of thing less probable.

Why is the compression on my hard start so low?

The compression will improve with thermal increase after it has been running, plus oil residue is greater. It may be simply at the point where compression is just too low. I notice your nickname is “Island” you wouldn’t be in a place with a salty misty spray kind of atmosphere by any chance.

What does it mean when your car says no crank?

A No Crank Condition means that the engine is not turning over when you turn the key to crank the engine. The most common problem, that causes this condition is a failed starter motor. The most common problem, that causes this condition is a failed starter motor.

Why is my Blazer engine cranking but not starting?

Symptoms of a bad rotor can be a “slight miss or a mild rough idle” and if not replaced it will eventually lead to a condition where as the “Engine cranks but won’t start” 1994 blazer, 4.3 liter .

Why does my S10 Blazer have no spark?

I found that I had “no spark” and that I had 60 psi of fuel pressure present and holding. So that isolated my problem down to the electrical ignition system. My Distributor was replace about a 2 years ago. The Distributor Cap, Rotor, Spark Plug Wires, and Spark Plugs were replaced about 3 months ago.

A No Crank Condition means that the engine is not turning over when you turn the key to crank the engine. The most common problem, that causes this condition is a failed starter motor. The most common problem, that causes this condition is a failed starter motor.

Why does my GM car say no start no crank?

How to diagnose a no start no click on GM vehicle. If you have a late model GM vehicle and turn the key only to hear nothing, you’ll most likely think you have a dead battery—and you may. But a no start, no crank, no click condition can be far more involved than that.

Is there a Chevy Blazer that will not start?

And any body’s help is appreciated, it’s a 97 chevy blazer that will not start. Good spark, fuel, and compression. Backfires out intake only when I stop cranking.

What kind of engine does a 1998 blazer have?

1998 blazer 4.3l engine. 4l60e transmission. that had been rear ended. Engine is hooked up. I have a Crank but no spark condition. vom and test probe being that i have no O-scope to test for a signal. Checked ECM1 15a fuse and all fuses—Good. Tested Ignition switch at the wire block pink w black stripe as i tried to start.

Why is my 350 Chevy truck not cranking?

Edelbrock 600cfm carb is 6 months old. Truck was completely restored 20000 miles ago so mechanically it’s a new truck. I have no idea why it won’t crank. Roadrunner July 5, 2016, 10:48pm #2 Are you getting 12V to and from the coil? pleasedodgevan2 July 5, 2016, 10:48pm #3

What kind of ignition system does a 1993 Chevy pick up have?

1992, 1993, 1994, 1995 Chevrolet/GMC 1500, 2500, and 3500 Pick Up and Suburban equipped with a 4.3L V6, or a 5.0L v8, or a 5.8L V8 engine. 1992, 1993, 1994, 1995 Chevrolet Astro (GMC Safari). NOTE: Testing the ignition system is a breeze.

What is the number 3 on a Chevy truck?

The number 3 is for a four-door cab, 4 for a two-door cab, 6 for a Suburban, 7 for a Motor Home chassis, 8 for a two-door sport utility, 9 for an extended cab, and 0 for a chassis only. Find the type of engine used with the eighth character.

What kind of truck is a 1994 Chevy?

My fiancé’ bought a 1994 Chevy 3/4 ton 4×4, 5.7L, V8. the throttle body is dumping fuel into the motor. He changed the plugs, wires, distributor, cap, rotor, fuel1 filter, and computer. He checked the timing and it’s good.

Is there a spark in my GM Truck?

Yes, that too would be an issue. However, you would get nothing when trying to start, let alone a spark issue. So I am having the same problem, and thought maybe I had a ground issue.

What kind of spark plug does a Chevy have?

Spark Plug, Conventional Resistor, Nickel Alloy Tip, Gasket Seat, 14mm Thread, Chevy, GMC, International, Each

What happens if there is no spark in the ignition?

The ignition system is the one responsible for creating and delivering spark. Without spark, the engine will Crank but Not Start. The ignition system of the GM vehicles covered by this article use a distributor type system. Distributor cap. Crank sensor. Ignition module. Ignition coil. All of the above ignition system components can be tested. 2.)

How to test a no spark no start condition?

How To Test A Misfire / No Spark No Start Condition (at: easyautodiagnostics.com ). How To Test The Crank Sensor (GM 4.3L, 5.0L, 5.7L). How To Test The Camshaft Position Sensor Diagnostic Trouble Codes: P0340, P0341.

How can I tell if my engine has spark?

The idea behind checking for spark (with a spark tester) is to see if all of the 8 engine cylinders are getting spark. Check that the 8 cylinders are getting spark with a spark tester.

Is there no fuel from injectors to start truck?

No fuel from injectors to start truck. When I try and start my 93 Chevy Cheyenne k3500 no fuel come out of the injectors. If I use starting fluid the truck starts and the injectors work great. Has died a couple times while driving, but mostly runs fine and then won’t start one turned off.

What was fuel pressure at time of no start?

Fuel pressure was normal at 60 PSI. Since no leaks were present and pressure was normal, then the fuel pressure regulator is OK. The PCM was indeed trying to activate the injector.

Why is my Chevy Vortec 4300 V6 leaking fuel?

In the L35 and LF6 engines, the spider injectors are known to leak at the pressure regulator and at the supply and return lines due to a design fault. Outside of leaking fuel onto the exterior of the engine itself, it can cause excess fuel to get sucked into the engine.

What makes an engine not start or run?

All engines require three things to start and run: spark, fuel and compression. If any one of these is missing, your engine will not start. The fuel pump is running and delivering normal pressure to the engine

Can a failed crank sensor cause no start?

The thing to remember about having a failed crank sensor, is that if you have spark or fuel injector pulses, the crank sensor is OK and not the cause of your No Start Condition. The crankshaft position sensor, on your 4.8L, 5.3L, 6.0L GM vehicle, is a Hall-Effect three wire crankshaft position sensor.

What happens if crankshaft sensor fails GM 4.8L?

If the crankshaft position (CKP) sensor fails, in your 4.8L, 5.3L or 6.0L GM vehicle, it’s not gonna’ start. In this article, I’ll show you how to test it using a multimeter (in Volts DC mode).

What causes a GM pick up to not start?

The one symptom that’s gonna’ be staring you right in the face is your GM pick up or van or SUV cranking but not starting. More specifically, you’ll see one or all of the following symptoms when the crank sensor fails: No spark from all of the Coil-On-Plug Ignition Coils.

What to do if your Chevy Silverado won’t start?

No one has added a helpful site for this 2000 Silverado problem yet. Be the first! Read reviews of repair shops in your area. Enter your zip code: NewRockies.com: How to fully bypass VATS, PassKEY and PassLock systems in GM cars.

What causes a car battery to stop working?

This can be caused by a few things. To diagnose it you need to work backwards: 1. Bad battery or low charge, or bad connections at the battery terminals. If the terminals are full of white snowy looking stuff disconnect them and clean them up. If a terminal is loose (you can turn it with your hand) tighten it.

Why is the starter on my Silverado not working?

My 2000 Silverado has on occasion when turning key to start, the starter does not engage nor do you hear the solenoid click but the battery is good. I did have to replace the exciter ring that surrounds the ignititon switch which did show up with security warning.

Can a car start with no crank or no starter?

Yes, especially if there is a bad connection to the starter, or from the battery. Doesn’t take much juice to click the solenoid, but it takes a lot of juice to turn the starter and turn over the engine.

Why does my Chevy Silverado won’t start?

Learn if it’s a simple fix or time to seek out a trusted technician. Not your vehicle? Why Won’t My Car Start? What are common reasons my Chevrolet Silverado 2500 HD won’t start? While there are a variety of reasons your Chevrolet Silverado 2500 HD won’t start, the most common 3 are a dead battery, an alternator problem, or failed starter.

Why does my Chevy Silverado battery drain while driving?

If it is draining while your Silverado is off, it’s usually caused by something that is drawing current that shouldn’t be. If the battery is draining while you’re driving, that is probably going to be the alternator or battery. There are other situations as well.

What to do if your GM pick up has no start?

One of the most overlooked areas, when testing a hard to diagnose no-start, is the mechanical condition of your 4.3L, 5.0L, 5.7L GM pick up, van or SUV. Checking the engine mechanical condition means an engine compression test.

Can a Vortec 4.3 crank but won’t start?

It cranks like a champ, but just doesn’t start, no check engine light on, and nothing else comes up on the good scanners either. Once it starts there is no problem, so the mechanics working on it have just been changing parts trying to guess, I guess. It has new plugs, wires, distributor cap and rotor, ICM, MAP censor and fuel injectors.

How many auto shops has my Vortec been to?

It has been in about 5 different auto shops in the past month and a half, first off when it gets towed by the time it gets to the shop it starts, everyone has run diagnostics, and everyone comes back with different problems, all fixed still no luck.

Where did the 2002 Chevy Blazer come from?

Mileage: 80,203 miles Body Type: SUV Color: White Engine: 6 Cyl 4.3 L No accident or damage reported to CARFAX. 1st owner purchased on 03/09/02 and owned in NY until 08/24/04 • 2nd owner purchased on 10/23/04 and owned in PA until .

Where was the 2002 Chevrolet TrailBlazer last serviced?

Last serviced at 126,952 miles in Clearwater, FL on 05/07/21 • Vehicle serviced • Maintenance inspection completed • Battery/charging system checked • Cooling fan clutch replaced • Brakes checked. No accident or damage reported to CARFAX. Purchased on 09/23/02 and owned in TX until .

When was the last time I serviced my Chevy Blazer?

1st owner drove an estimated 9,697 miles/year • 2nd owner drove an estimated 0 miles/year • 3rd owner drove an estimated 5,854 miles/year. Last serviced 08/12/18 • Vehicle serviced • Tire (s) balanced • Tire (s) replaced • Tire (s) mounted.

What makes a truck crank but won’t start?

Has good fuel pressure and spark. Engine will crank and run if you pour gas in the throttle body. Injectors will click when checked with a 9 volt battery but won’t spray has into throttle body. It ran good after replacing intake but three days later it cranked and shut off after a few seconds and wouldn’t crank back.

What causes the fuel pump to not start?

The fuel pump is running and delivering normal pressure to the engine But, with all that working your engine still will not start. So, the most likely cause, is that the fuel injectors are probably not opening. The (PCM) uses the trigger signal from the crankshaft position sensor; and/or camshaft position sensor to pulse the injectors.

How to test the crank sensor on a GM 4.3L engine?

Unplugging this connector will disable the computer from injecting fuel into the engine. You don’t need any expensive tools to test the crank sensor on your 4.3L, 5.0L, 5.7L engine. Multimeter. You can use a digital multimeter or an analog multimeter although the digital one is the preferred one.

Why does my 2003 Chevy Silverado not start?

My 2003 Silverado has issues starting sometimes. If I hit the steering column it will sometimes start. My silverado has left me stranded numerous times with this intermittent starting bullsh!t. The truck starts majority of the time however sometimes I go to start the engine and nothing!!

Is there a problem with my Chevy 1500?

We have the same problem with 2003 Chevy 1500 pickup, intermittent starting problems as many owners of these trucks do. The dealers tell us they have never heard of this problem (yea, right) and can’t diagnose unless truck is not starting when you bring it to the dealer.

What kind of engine does a 2003 Silverado have?

Here’s the kicker…..I put the new one in and the truck started right up and we thought it was fixed, my son drove the truck and it ran fine, but when he returned home, it wouldn’t keep running after he would try to start it again, no matter how many times we tried.

Why is my Chevy Silverado 1500 not starting?

However, today, when the truck will crank and start, the antitheft icon goes off after a few seconds with the key on and stays off while the truck is running. It never flashed either today or yesterday though. And I don’t know if the antitheft system disables cranking or starting or both.

Why does my GM pickup engine not start?

How To Test The Fuel Pump On GM TBI Fuel Systems (for throttle body fuel injection fuel system equipped vehicles). A failure in one of the Passlock system’s components will cause the engine to start and then stall after a few seconds. This is due to the fact that the PCM, in your GM pickup or SUV, has disabled the fuel injectors.

Can a Chevy Express run on no start?

The only thing was not checked was the wires. as the old wires where in pieces when i took them off. also i put in upper end plugs, but if i checked cyl 2, 4 , 6, 8, all had spark then i would assume i would get somthing rite… Yes I agree, 2 4 6 8 is enough to run, and yes I think it would run on spray, if it were only lacking injector pulse.

What to do if your Chevy Express won’t start?

It sounds like it’s trying to start but won’t. The key only comes out in vans that are equipped with the V.A.S.T system. Weirdly banging on the dash sometimes works too. If it does not try to start for a second and then die, replace the cap and rotor. This video is about an issue involving the disabling of the fuel pump for security. Loading…

What does no start no crank no click mean?

If you have a late model GM vehicle and turn the key only to hear nothing, you’ll most likely think you have a dead battery—and you may. But a no start, no crank, no click condition can be far more involved than that. In the old days, power flowed through the ignition switch and down to the starter solenoid. Not anymore.

What kind of engine is a 98 Vortec?

SilveradoSierra.com • 98 5.7L cranks but no start, new fuel pump, cap, and rotor.. : Vortec 5300 5.3L V8 Is your ’98 a throttle body injection or is it one of the first generation vortec’s.

Can a 1999 Chevy c1500 / k1500 start?

Hi, our 1999 CHEVROLET C1500/K1500 is having the same issue. After sittiing for a few hours, we have to crank it and eventually put a little gas or tarting fluid in the throttle body for our truck to start but runs and drives fine once it does start and will start right up after only sitting for about an hour or so. 205 people found this helpful.

Why does my 96 Chevy Express van not start?

Also had a similar issue spin and no start with a 96 Chevy Express Van with the 5.7L. This vehicles issue turned out to be a shorted pink wire in the wiring harness that runs up the passenger side of the block. The vehicle had died while driving several times and wouldn’t start. Then, finally after blowing a couple fuses, would start at all.

What kind of gas does a 1997 Chevy truck use?

1997 chevy c1500 WT with 4.3 . getting harder to re crank.. Only driveable with both stop revving to keep it going. And that still doesnt work well. Work ive done. New cap and rotor. Cleaned…. Exh gas.

Are there any safety belts on a 1997 Chevy Tahoe?

Again Electronic Manual lap/shoulder safety belts for outboard front/rear seat… Emissions Note Emission component coverage – Varies by geographical region.

Why does my Tahoe Z71 have no start?

This causes the crank shaft position sensor to rest on the cranksharft timing position gear/key effecting the output voltages of the sensor causing the timing to increse or decrease by as much as 50 degrees. Sometimes the condition occures once the vehicle reaches it’s normal operating temperature.

How to run a diagnostic test on a 1993 Chevy truck?

They will be on the end of the row to the far right, and the will be side by side. Place your key into the Chevy’s ignition and turn it, but don’t crank the engine. Watch the “check engine” light. It will start flashing. Chevy trouble codes are two digits. The first digit will be represented by a long flash.

Why is my Silverado Sierra engine popping up?

NO engines popping up. When I got to it I tried to go through the basics of troubleshooting- Turned on key to listen for fuel pump, pump came on. Pulled spark plug to check for spark which it had however plugs were bad and the spark was orange instead of blue.

What kind of noise does a Chevy 4.3 make?

by Contributor. A common complaint with the Chevy 4.3 engine is that it doesn’t idle well, it’s loud and makes awkward noises. Examples of this are staling, lurching and poor acceleration. Poor idling and loud engines usually go hand-in-hand.

When did the GMC Sierra have the most problems?

The model years with the most problems reported were 2004 and 2007, with more than 60 complaints each year, followed by 2002, 2003, 2005, and 2010, with more than 40 each year. Of the 112 problems, five different complaints have been reported 90 or more times.

What should I do if my engine won’t start?

The very first thing you need to do is check for spark and the presence of fuel. Both of these tests should be done simultaneously if possible. As mentioned before, usually one of them will be missing from the mix. The idea behind checking for spark (with a spark tester) is to see if all of the 8 engine cylinders are getting spark.

What makes a GM ignition coil spark away?

This Triggering Signal is known as the IC (Ignition Control) Signal in the GM service literature. The ignition control module now starts to open and close the primary current circuit of the ignition coil and as you may already be aware, it’s this opening and closing action that makes the ignition coil spark away.

What was the ignition module for a 1996 GMC k1500?

1996 GMC K1500, K2500, K3500 Pick Up. All of the information you need to diagnose a misfire or a no-start problem (caused by the ignition coil, the ignition module, or the crankshaft position sensor). Wiring diagrams.

Is it hard to start a 1988 L98 auto?

1988 L98 Auto. recently aquired. hard to start from cold start. literally 3-7 seconds on the starter. New wires, not plugs. new cap and rotor. trust me being a Jeep guy I know oil smoke smell. Once she is running, she starts slow then idles fine. after that no performance issues.

What causes a car to start but not keep running?

The engine requires the right amount of air and fuel to mix together for ignition. If there is a fuel leak somewhere, then the correct amount of fuel may not make it to the combustion chamber. This might be enough to allow the engine to start, but not keep running.

What does it mean when your corvette won’t start?

When a starter goes bad, they will usually not give you much warning first. Also, if you are stuck somewhere and are trying to start your Corvette, the old beat the starter with a hammer trick is not a wives tale. It really can get that one last start out of it. There are a lot of issues that can cause your Corvette to crank, but not start.

What are the most common problems with a C5 Corvette?

The most common issues you are going to run across when it comes to C5 Corvette electrical problems are bad grounds. Your C5 Corvette comes with 13 different chassis ground points around the car, all of which are subject to corrosion or coming loose causing a bad connection.

3 vortec is a very strong and reliable motor, proven by it being the longest lasting production vortec engine. Generally, these engines are extremely capable of lasting up to 300,000 miles.

What happens when fuel pump does not start?

The pump will trigger on the start circuit and run for about 15 seconds. If it does not sense oil pressure it will quit.

What causes a Chevy 4.3 engine to stall?

Lack of oil will cause a knocking sound in the engine, stalling, poor acceleration and eventually engine break down. Lack of transmission fluid, battery fluids, radiator and cooling system fluids can all cause symptoms that mimic bad idle air control valves and throttle control switches.

Why is my Check Engine light on after installing fuel injection?

Most of the problems encountered while installing your fuel injection system or after a time of operation are very simple. If your check engine light is on you more than likely have a hard fault meaning something is grounded out, unplugged, operating out of range or has gone bad.

Cold Hard CHEVY Start Problem Solved! Chevrolet Silverado Express Suburban Tahoe GMC If playback doesn’t begin shortly, try restarting your device. Videos you watch may be added to the TV’s watch history and influence TV recommendations. To avoid this, cancel and sign in to YouTube on your computer.

Is there a problem with my Chevy Silverado?

Cold Hard CHEVY Start Problem Solved! Chevrolet Silverado Express Suburban Tahoe GMC – YouTube Cold Hard CHEVY Start Problem Solved! Chevrolet Silverado Express Suburban Tahoe GMC If playback doesn’t begin shortly, try restarting your device. Videos you watch may be added to the TV’s watch history and influence TV recommendations.

What does it mean when your Chevy Suburban won’t start?

This just means that the engine doesn’t move when you turn the key. The second way that your Suburban won’t start is when the engine turns when you engage the starter, but it won’t fire and run on its own. When the engine isn’t turning over at all, that’s a bit easier to diagnose than when it is cranking but not firing.

What causes a Chevy Silverado to start without turning the engine?

A fuel delivery problem is usually caused by a clogged fuel filter, no fuel in the tank or a faulty fuel pump. A starter that spins without turning the engine is caused by the starter gear failing to engage the engine’s flywheel.

What kind of problem does my Suburban 1500 have?

We ahve a 2004 suburban 1500 4×4. Recently it has developed a very intermittent starting problem ( aboiut once pre 2-3 weeks). The vehicle simply will not crank or make any nosie when the key is turned. These is no clicking. The lights come on as expected.

Will turn key and it is like no power from battery to starter, but have lights, radio, etc. Turn key again or sometimes multiple times, to no avail. Then, turn it one more time and it starts. Then the next 15 starts, no problem. Sometimes hot engine, sometimes cold. UPDATE: 2-6-14; I sold the truck to my father. He changed the starter.

What’s the idle RPM on my Chevy Suburban?

My 1997 Chevy Suburban (5.7) is acting up on me. When I start it up the RPM and idle seem fine. As I let it sit for a couple of seconds the RPM’s slowly begin to drop until they finally bottom out at about 1K. As soon as I put it into Reverse/Drive etc. the RPM’s drop below that mark and it struggles to stay running.

How does idle speed work on a GMC Truck?

Scan it for codes. The control module controls idle speed with an idle air control (IAC) valve. The desired RPM is based on sensor inputs and the actual engine RPM. Four circuits are used in order to control the IAC valve, allowing a precise amount of air into the intake manifold.

Why does my car idle at high idle?

If this tube becomes loose or broken it can leak un-metered air into the engine effectively causing an unbalance (via the mass air flow MAF sensor) in the computer system which can produce fast or slow idle.

Why does my Silverado Sierra have high idle?

Cleaned the throttle body and went to put it back on and start it with out the intake attached to the throttle body. It idled funny so I shut it off.

Is there an intake manifold leak at high idle?

You may have an intake manifold leak on the bottom side of the engine at the lifter galley (I base this assumption by the fact that when you spray eather into the valve cover it changes the engine speed.) Re: high idle PLEASE HELP!!! You probably have a leak like aste25 mentioned.

Why does my 1996 Chevy S10 not start?

1996 Chevy s10 will not start 83 people found this helpful. 4.3 have spark fuel pressure but not starting 186 people found this helpful. Hello guys. I have problems with my 1994 Chevy s10 blazer. when I put the key in and turn it will NOT start right up. it will crank but not start. what can the issue be 154 people found this helpful.

What’s the problem with my Chevy 98 S10?

I have a Chevy 98 S10 2.2 Vortec already change the spark plugs the starter the alternator the battery the spark plugs already but it won’t start no crank to start it them i just turr the keys and the starter woeks good is all new but the motor doesn’t want like crank what could be the problem 40 people found this helpful.

What kind of engine does a 1996 Cheb S10 have?

52 people found this helpful. I have a 1996 cheb s10 4.3L v6 vortex, I change spark, wires,distributor, rotor button, fuel filter, crank sensor, cam sensor, when I tried to drive it. It would sputter and it will not accelerate, just more sputtering.

What kind of engine did Chevy have in 1989?

In 1989, the Corvette, the G30 van, and the Suburban has this engine. Because of the 350’s versatility in performance, it was installed in vehicles that ranged from a sport coupe to a full size van. The 1989 Chevy 350 engine falls under the L98 variants of the Chevy 350 engine.

What kind of car was Chevy 350 in 1989?

What makes a 1998 GMC C2500 no start?

1998 GMC C1500, C2500, C3500 Pick Up. 1998 GMC K1500, K2500, K3500 Pick Up. All of the information you need to diagnose a misfire or a no-start problem (caused by the ignition coil, the ignition module, or the crankshaft position sensor).

How does the ignition work on a Chevy 350?

The engine’s ignition system is triggered by an electronic driver which signals the ignition coil when to fire. By design the resistance it takes to fire the coil via the spark plug is figured into the system.

Why does my car engine not want to start?

If the engine still doesn’t seem like it wants to start, probably fuel is getting into the cylinders and your problems lies somewhere else. However, if the engine runs momentarily and dies, then the problem is that fuel is not getting to the cylinders. Check for a clogged fuel filter, or a bad fuel pressure regulator.

Why does my 1994 Chevy S-10 not start?

1994 Chevrolet S-10 4.3 tbi. I never get the signal to turn on the fuel pump or fire the injectors but if i poor gas in the intake once the truck starts it runs fine. Any ideas ? I have replaced the fuel pump relay oil pressure switch and computer.

What kind of engine does a 93 S10 have?

I have a 93 S10 4.3 Automatic 2wd, I was driving and it just died, before that the engine idled high then low then smoothed out. Could not hear fuel pump kicking on and had it towed home. Next day put a fuel pump in it and a fuel pump relay, cranked it up before I put bed back on it ran and idled fine.

Is the fuel pump on my 93 S10 working?

Yes got a 93 S10 I was driving down the street it stopped working I put a new fuel pump in it and you feel filter and still no start is there anybody out there that can help me 13 people found this helpful.

Is the Chevy 5.3 liter engine without problems?

In fact, it is not a rare occurrence for a 5.3 Chevy to go above and beyond 200,000 miles. However, no engine or car is entirely without flaws. If you are in the market for a Chevy 5.3 vehicle, there are some things to look out for.

What’s the problem with the Chevy LT1 V8?

This engine featured a new distributor design called Optispark that was plagued with issues. If you own an LT1 car, here’s what to watch for and what to do when that Opti fails. Source | Rich Niewiroski Jr. The original small-block Chevy (SBC) V8 was built for decades, spanning from the mid-1950s through the 1990s.

What to do if your Vortec won’t start?

96 Chevy C1500 5.7L Vortec Truck won’t start, Replaced Fuel Pump, Filter & Has Spark. Hey everyone, I have a 1996 Chevy C1500 with a 5.7L Vortec, I got the truck recently and was told it just needed a Fuel pump, I replaced the Fuel pump, and the Filter, also the pump turns on and there is fuel up at the rail, I pushed the pin and it shot right out.

Why does my car not start when I turn the key?

This condition is usually due a failed fuel pump, a failed ignition coil, a failed ignition control module, a failed crank sensor, etc… that lets the engine crank (turn over) but does not let it start. A No Crank Condition means that the engine is not turning over when you turn the key to crank the engine.

Can a 1997 Chevy c1500 5.7L start?

1997 Chevy C1500, 2WD, 5.7L won’t start – cranks fine. No codes – good fuel pressure ( 60+ psi – new pump), good spark, 1997 Chevy C1500, 2WD, 5.7L wont start – cranks fine. No… It will not start. I changed the fuel filter and fuel pump It will not start.

Why does my 1997 Chevy Suburban not start?

1997 1500 pickup at low throttle engine is missing to the point were I had it full throttle and no power and engine died. Still won’t start … read more Vocational, Technical or Tra… i have a 1998 chevy suburban. It was running fine when parked, but 3 days later will not start. It cranks fine, but sounds as though it wants … read more

What causes a car to have a no start?

The electric fuel pump (located in the fuel tank) is the key component that supplies the fuel the fuel injectors need to inject gasoline into the cylinders. When the fuel pump fails, it will cause a no start condition. Thankfully, the fuel pump can be tested with a fuel pressure gauge to make sure it has really fried. 3.) Engine Mechanical System

What makes a MerCruiser engine not start up?

1. A bad key switch. 2. A blown ignition fuse. 3. A bad harness connection or bad harness. 4. A bad shift cable. 5. A faulty Shift Interuptor Switch on the shift plate assembly. 6. A shorted tachometer. 7. A removed or faulty Safety Lanyard Switch. 8. A bad ignition coil.

Why does my car not start when I crank the engine?

If the engine doesn’t crank, or makes an unusual noise when cranking, you may have a starting system problem. The car’s security system may have made an error that disabled the fuel or ignition system, or the chip in the key may have failed.

Why does my car not start when I push the start button?

False input or lack of input from sensors like the crankshaft position sensor (CKP) or camshaft position sensor (CPS) can prevent the engine from starting. Also, a bad throttle position sensor (TPS) may cut off the spark to the cylinders.

What makes an internal combustion engine not start?

To operate efficiently, an internal combustion gasoline engine needs a good spark, the right amount of fuel, and good compression (a healthy mechanical condition). The lack of any of these three things will prevent your engine from starting.

What kind of Chevy truck won’t start?

In this video we encounter a condition where a 2002 Chevy Silverado ( Similar to GMC Sierra ) pickup has a symptom of the engine cranks over but won’t start…. In this video we encounter a condition where a 2002 Chevy Silverado ( Similar to GMC Sierra ) pickup has a symptom of the engine cranks over but won’t start….

Why does my GMC Silverado have no crank?

This is a fix for a known electrical issue with the 2003-2007 C/K series GM Trucks where a bad ground causes multiple issues. Such as no start, no crank, intermittent no gauges, and sometimes the theft light would stay on, and the parking lights would stay on.

What should I do if my long crank wont start?

Just a recap of what you should do first to determine if your long crank before starting is fuel related or not. First, before you try cranking the engine over, turn the ignition key to the run position then back off without cranking the starter.

What are the problems with a 2003 Chevy Silverado?

The 2003 Chevrolet Silverado has 4 problems reported for engine won’t turn over,won’t start. Average failure mileage is 97,500 miles.

Where is the starter on a car that won’t start?

To figure out why your car won’t start, it helps to know the difference between the starter and the ignition switch. The starter is an electric motor that cranks the engine, effectively starting the car. It is under the hood, usually on the passenger side at the bottom of the motor next to the transmission.

What does it mean when your GMC Sierra won’t start?

The first and most common is when it won’t turn over. This just means that the engine doesn’t move when you turn the key. The second way that your Sierra won’t start is when the engine turns when you engage the starter, but it won’t fire and run on its own.

Why does my fuel pump not turn on?

Well getting to start by adding fuel to the throttle body is not going to turn on some special switch that will send a signal to the pump and injectors. I’m sure you probably just have a bad fuel pump that doesn’t have enough pressure or volume to start the truck, but at running speed can keep up.

Is there a way to turn on the fuel pump?

There’s no way you have no signal, but then starting the truck by adding fuel will then turn on the injectors and pump. That’s just crazy. Good luck with that one. Once the truck starts and is running you can remove the jumper to the fuel pump and it will continue to run.

What happens when the fuel pump goes out on a Chevy S10?

There are physical signs that you can feel when your S10’s fuel pump is going out. Before taking anything apart, check to see if your engine’s computer has any trouble codes saved in it. The engine may throw a P0087 trouble code. This trouble code detects that the fuel rail/system pressure is too low.

Why does my Chevy Silverado not start when hot?

A clogged fuel filter, dirty fuel injectors or weak fuel pump can result in too little fuel reaching the cylinder, causing poor fuel ignition and the need to depress the accelerator to assist starting. An engine that is difficult to start when hot can be caused by a clogged air filter restricting airflow to the intake.

What causes a car engine to not start?

All engines require three things to start and run: spark, fuel and compression. If any one of these is missing, your engine will not start. But with all that working your engine will not start. Engine Will Not Start-The most likely cause is that the fuel injectors are probably not opening.

What causes a Chevy Silverado 1500 to hard start?

As it warms up the idle air control adjusts to this vacuum leak and when the key is off the idle air control resets itself causing a hard start up due to the vacuum leak not being compensated for. Just a possibility 16 people found this helpful. K6, see what I mean by listen to John?

What does it mean when a Chevy truck won’t start?

It has spark as evidenced by putting an old spark plug into a spark plug wire and grounding the plug After spraying a small amount of starting fluid into the air intake tube, the engine starts for just a moment, then dies Three or four years ago the truck had the Reduced Engine Power warning problem.

What causes a GMC truck to turn over but not start?

If the engine starts up normally after doing that, it means that fuel pressure is bleeding off and the fuel pump needs to prime the lines before it can start. It can bleed off from one of two places. 1. Fuel pressure regulator has an internal leak, and fuel is bleeding off back to the tank though the return line. 2.

What to look for when your engine won’t start?

Check for a blown fuse that may be preventing a circuit from working properly, like the fuel injection or computer system. To operate efficiently, an internal combustion gasoline engine needs a good spark, the right amount of fuel, and good compression (a healthy mechanical condition).

Why does my 5.3 liter Vortec make a ticking noise?

Causes of Startup Noises in a 5.3L Vortec Valve Lifter. Lifter tick is a common occurrence in V-8 engines like the Chevy 5.3-liter Vortec. This ticking sound is caused by the valve lifters, which are filled with oil during engine operation.

Why does my Chevy Silverado make a clicking noise?

I have the same clicking noise on a 2005 with a 5.3. The stethoscope tells me it is inside the oil pan near the back. It is directly related to RPM. Oil pressure is fine and I drive it everyday but the noise is irritating 84 people found this helpful. Guys! Ive had the same problem for quite a while.

Why is a clicking sound coming from the starter relay?

Clicking sound coming from the starter One of the most important – and most forgotten – components of any vehicle’s ignition system is the starter relay. This electrical part is designed to redirect power from the battery to the starter solenoid, which then activates the starter to spin over the engine.

What causes a car starter to not turn over?

However, when powered, it should send a signal to the starter relay once the key is turned or the starter button is pressed. If you press this button or if you turn the key on a manual ignition switch and the vehicle does not turn over, it may be caused by a problem with the starter relay.

When did the Chevy 5.3 liter V8 come out?

The initial run of the Chevy 5.3-liter V8 comes in the third generation of Chevy’s small-block V8 engine. For marketing purposes, this engine is known as the Vortec 5300. As we mentioned before, it first became available in 1999.

What should you look out for in a 5.3 liter Chevy?

Chevy’s 5.3-liter V8 is known for its long-term lifespan and trustworthiness, but no engine is without problems. What should you look out for? Ask any owner of a Chevy 5.3-liter V8-powered vehicle about its dependability, and they’ll likely tell you about how they’ve never had any major issues with it.

What’s the difference between a stalling engine and a not starting engine?

One of the main difference between and engine that will not start and one that stalls while in operation is the ability for the computer to detect the problem.

What kind of car stalls after engine heats up?

The Chevrolet Cavalier is a compact automobile produced from 1982 to 2005 by General Motors. car starts and runs fine until engine heats up to operating tempature, then it stalls, it will restart but keeps stalling until engine cools down. What can cause this? Answered!

When does a shorted sensor cause an engine to stall?

A shorted sensor doesn’t always set a check engine light or MIL (malfunction indicator light). The computer is programmed to trigger a “service engine soon light” when the sensor has failed for a predetermined amount of time, say one minute, it only takes an intermittent shorting sensor one second to stop the computer system (stall engine).

Why does my GMC P / you compressor not turn on?

No. Theres a schrader valve to prevent freon from escaping when you replace the switch. Just make sure you dont overtighten it. This is on a 2004 gmc p/u I have checked the fuse and relay all good. I have jumped high pressure switch .I have no power going to the high pressure switch wiring is good.

Why does my Chevy Silverado 1500 not start?

I have a 2005 Chevy Silverado 1500 2 wheel drive 4.3L V6. I recently replaced the fuel pump because the truck would not start. Replacing the pump fixed the problem, but now its doing the same two mouths later. Cranks but will not start. Yesterday I left for work the truck started and ran for about four miles and then it just quit.

What kind of engine cranks wont start up?

Engine Cranks but Wont Start Up?: I Have a 2005 Chevy Silverado Engine cranks but wont start up? I have a 2005 Chevy Silverado 1500 2 wheel drive 4.3L V6. I recently replaced the fuel pump because the truck would not start.

What causes a GM pickup truck to stall?

A failure in one of the Passlock system’s components will cause the engine to start and then stall after a few seconds. This is due to the fact that the PCM, in your GM pickup or SUV, has disabled the fuel injectors.

Why does my Chevy S10 engine not start?

The second way that your S10 won’t start is when the engine turns when you engage the starter, but it won’t fire and run on its own. When the engine isn’t turning over at all, that’s a bit easier to diagnose than when it is cranking but not firing.

What to do if your truck has no spark?

What you have changed either the ignition module in side distributor or pickup coil on distributor. shaft. Can take ign. module to auto parts for a test . see if it is good. Check all your grounds and check the wire from the battery to your starter…ive seen them go bad and once i replaced them,worked like new!

How to troubleshoot a GM 4.3L no start?

Check that the 8 cylinders are getting spark with a spark tester. The distributor cap is good. The ignition coil is good. The ignition control module is good. The crankshaft position sensor is good. The distributor cap could be bad. The ignition coil to distributor cap high tension wire could be bad. The ignition coil could be bad.

How to troubleshoot your TBI fuel injection system?

Troubleshooting your TBI Fuel Injection System Most of the problems encountered while installing your fuel injection system or after a time of operation are very simple. If your check engine light is on you more than likely have a hard fault meaning something is grounded out, unplugged, operating out of range or has gone bad. See

What is the TBI code on a 1990 Chevy truck?

Consult a service manual or see below for any check engine light code definitions. You can use a late 80’s or early 90’s GM TBI definition. If you have access to a scan tool use a hook up for a 1990 350 cu. in. 5.7L Chevrolet truck. For some scan tools enter VIN 10th“L” 3rd“C” 8th“K”.

When did Chrysler stop making the 3.3 engine?

Production on the 3.3 was stopped in 2010 after a run of 5,076,603 engines, while the 3.8 remained in production until May 2011 in Trenton, Michigan for the Jeep Wrangler. Both use a cast iron block and aluminum heads .

What happens if catalytic converter fails in car?

Step 7 – If a catalytic converter fails it can break apart causing partial blockage of the exhaust system. This unit is used as an emission control device that incinerates unburnt gases in the exhaust system. Learn more

When does DTC put a car in limp mode?

When the engine control module, transmission control module or brake control unit (ABS) detects a problem in the engine, transmission or with the brake system, it will store a trouble code in your DTC memory. If one of the control units decide that the problem is dangerous for the engine or transmission, it will put the car into limp mode.

What happens when you fill up the gas tank?

Thank you. When you fill your gas tank, a lot of fumes build up in the fuel tank and usually excess fumes come out of the fuel filled tube and out to atmosphere or into a recovery system in the fuel pump handle.

What does it mean when your fuel gauge is stuck?

A stuck fuel gauge on your vehicle can not only be annoying, but also require you to keep track of how many miles you’ve driven since your last fill-up to prevent you from running out of gas. A fuel gauge works through a series of electrical connections from the sending unit to the gauge cluster,…

What should I do if my fuel pump does not work?

After mechanic replaced… After mechanic replaced fuel pump gas gauge does not work. Took my truck to mechanic for routine maintenance and he replaced the fuel pump. After I got the truck back and filled the gas tank I noticed the fuel gauge wasn’t reading correctly.

What happens to the gas gauge when the circuit is shorted?

If the internal circuit is faulty, the gas gauge may only function in one section, such as between HALF and FULL or between EMPTY and HALF. If the internal circuits are shorted, they may peg to FULL or EMPTY. If the circuit is open, the gas gauge will likely sit at EMPTY and never move.

What causes an engine to turn over but not start?

So if there is any problem with the injector, it may cause the engine turns over but won’t start. For this, you will need to test the working of the injectors using a computer. Testing is done by using a test light while the engine is cranking. Many a time, you may not know the fault in the vehicle.

Can a 5.7 Hemi engine crank no start?

If the voltage returns to 5V while the coolant temp sensor is disconnected then you know the sensor is shorted. Try disconnecting the coolant temp sensor and cranking the engine to see if you have spark at one of the coils. For your question about the extra ground, yes, it is always good to have a soild, reliable ground.

Why does my Ram 1500 engine not start?

Put key in ignition truck will not start, does not do anything, like someone took the battery out of the truck. Tried spare key, still no luck. Tried it three times, and it finally started. No big deal, it has happened several times.

Why is my Ram 1500 engine not starting?

Turns out is the TIPM. The replacement part won’t be delivered until mid September (4 Months from now) This has happened to me 3 times. Twice in a parking lot and once in my driveway.

What does it mean when your truck won’t start?

It doesn’t happen for the dealer when they have it. Put key in ignition truck will not start, does not do anything, like someone took the battery out of the truck. Tried spare key, still no luck. Tried it three times, and it finally started. No big deal, it has happened several times.

Why does my car not start after I replace the battery?

Evaluating Your Car’s Key Systems for Possible Failure. There are many other possible problems that could lead to the fact that, after you’ve replaced the battery, the car won’t start. One or more of several key systems might not run properly, or there could be a serious malfunction with the electrical system.

What to do if your VW wont start after a battery change?

Leave the cables disconnected for fifteen minutes If this doesn’t yield results, then you can try this alternative method to get your key to reprogram itself: Ensure that the battery is being charged with a charger Leave the key in the ignition with the battery on and the engine off for an hour

Is it possible that a car starter won’t work?

It’s almost like the engine is seized (i know it’s not though). Is it possible that the starter could check out fine on a benchg test but still not work when in the truck? Yes, especially if there is a bad connection to the starter, or from the battery.

Can a bad ignition pickup cause an engine to stall?

One of the first symptoms of a bad ignition pickup is an engine that stalls and eventually will not restart. Consequently, An old or failing ignition pickup may cut out signal intermittently, which may cause the engine to stall. The engine may suddenly just shut off, almost as if the key had been turned off.

Why is my Chevy Silverado engine not sparking?

Turn the engine on, if you can, and remove each of the ignition coil packs one-by-one. If there is a particular coil pack which is not sparking like the others, then you can surmise that a bad coil pack is what is stopping the engine from sparking. Check the spark plugs individually if you are not able to turn on your engine all of the way.

Why does my MerCruiser crank but won’t start?

Unable to start enging during spring commissioning. battery fully charged, engine turns over, have spark at plugs and coil, have fuel coming in to carb. The carb was rebuilt 2nd half of last season, and installed new alternator, new points gaped at .022, new distributor cap, new roto, new spark plugs gaped at .035, and new spark plug wires.

What to do if your engine won’t start?

Disengage driven Units and check for loading from malfunctioning accessories. Make sure shutdown is not occurring too soon. Bleed the fuel system and check for suction leaks. Drain fuel-water separator or replace filter. Check for fuel waxing in cold weather. Clean or replace pre-filters or screens and check for fuel-line restrictions.

Why did my 94 Dodge Dakota shut off?

I had a 94 Dodge Dakota that did the same thing and that was at fault. You made no mention of whether it is hard to restart or not once it shuts off. If it hard to restart, I would look at the crankshaft position sensor.

What causes idle on a Great Lakes 4×4?

Take the egr valve out and see if there is a piece of carbon stuck in it. This would cause a rough idle. Also make sure the gasket is not leaking around the base of the egr valve. These would both cause the symptoms that you are experiencing.

Can a bad cheep cause a service engine light to come on?

DO NOT use the cheep shit as they can be calibrated wrong an cause more drivability issues. If the EGR valve is bad you will get code 32. It may not cause the service engine light to come on. My EGR valve is bad and the light doesn’t always come. It does cause the problems you are talking about.

Are there any problems with a 7.3 liter diesel engine?

The legendary 7.3 Power Stroke Diesel engine, when properly maintained can provide years of trouble free service. However there are several common problems that can develop over time. Generally speaking these can all be resolved relatively easily. Listed below are 9 common problems of the 7.3 Liter Power Stroke Diesel engine.

What causes a 7.3 power stroke engine to not start?

7.3 Power Stroke Diesel Common Problem #1 : Causes No Start : Injection Pressure Regulator (IPR) Valve, located in the valley on the High Pressure Oil Pump (HPOP). These can stick, seals get damaged, have the sensor go bad or the wires get damaged.

How long does a Ford 7.3 Powerstroke last?

Nonetheless, the 7.3 PowerStroke has a B50 life of roughly 350,000 miles. In other words – about 50% of these 7.3L engines last longer than 350,000 miles. That’s pretty respectable even among diesel engines that are known to outlast gasoline engines. Ford 7.3L diesels are strong internally and have what it takes to last.

Why does my car backfire when the starter quits?

Sometimes the backfire is a couple seconds after the engine quits turning. The engine was dead cold (never got it started) & it was like 35 degrees out. I will try & confirm tomorrow if I am getting spark while the starter is cranking. Also, the bad fuel theory has merit I suppose.

How to troubleshoot a Ford 4.9L no start?

Part 1 -How to Troubleshoot a No Start (Ford 4.9L, 5.0L, 5.8L). Troubleshooting a no start problem on your Ford 4.9L, 5.0L, or 5.8L pick up, van, or SUV can be easily done, with the right diagnostic information and troubleshooting strategy and in this article I’ll provide you with some of both.

Why does my LS3 run longer in crank / start mode?

Your truck ECU injector flow rates dont match that of an LS3. Also the MAF sensor settings are about 400% off compared to an LS3, which makes sense why it runs longer with it unplugged, since the crank/start mode doesnt seem to use the VE table or MAF sensor..

How to decelerate a General Motors OBDII drive cycle?

Decelerate with using the brake [or the clutch!] by coasting down to 20 MPH or less, then stop the vehicle. Allow the engine to idle for 10 seconds, turn the key off, and wait one minute. General Motors (specific) OBD II Drive Cycle Performing a GM OBDII Driving cycle: Cold Start.

Can a faulty fuel pressure regulator cause a car to not start?

In the event your Ford cranks easily, but doesn’t start within the first five or six revolutions of the starter motor, you may have a faulty fuel pressure regulator. If the regulator has failed completely, the vehicle will crank, but not start at all.

Where can I find the OBDII drive cycle?

The OBDII Drive Cycle will be performed using a scan tool. Consult the instruction manual for each described function. NOTE: A detailed description of a Powertrain Control Module (PCM) Reset is found in this section, refer to the table of contents.

How to clear a Ford driving cycle OBD-II?

1. Install scan tool. Turn key on with the engine off. Cycle key off, then on. Select appropriate Vehicle & Engine qualifier. Clear all DTC’s/ Perform a PCM Reset. Bypasses engine soak timer.

Why is my Hummer H3 engine not starting?

There are a lot of issues that can cause your H3 to crank, but not start. The engine needs air, fuel, and a spark in order to run. It is highly likely that if the engine is cranking, but not starting that it has thrown an OBDII code. It is definitely worth it to use an OBDII scanner to check and see if the engine has thrown any trouble codes.

What does it mean when your car doesn’t start?

In a no start condition your engine does turn over when you turn the ignition key to start but the engine doesn’t start. In other words: your vehicle’s starter motor is cranking the engine but the engine is not starting. A no crank condition means that the engine is not cranking when you turn the key to crank the engine.

Why does my 2.7L engine not start when hot?

I honestly have this exact same problem with my 2.7L. I can guarantee that something is becoming heat soaked when the engine sits for 5-25mins after being at operating temp.

What to do if your Ford 7.3 engine wont start?

Type 2-Next replace the CPS with a genuine motorcraft one ( Genuine Ford 7.3L Diesel Cam Position Sensor (CPS) – Blue) or the international replacement for the T444 part number 1825899-C93 (reference this engine or part number when ordering because international doesnt “know” what the 7.3 is.)

Why does my GMC Sierra engine not start?

There are a lot of issues that can cause your Sierra to crank, but not start. The engine needs air, fuel, and a spark in order to run. It is highly likely that if the engine is cranking, but not starting that it has thrown an OBDII code.

What should fuel pressure be on GM 4.3L Vortec?

You can find this tutorial in Spanish here: Cómo Probar La Bomba de Combustible (GM 4.3L, 5.0L, 5.7L) (at: autotecnico-online.com ). The fuel system in your 4.3L, 5.0L, or 5.7L Vortec engine needs at least 50 PSI of fuel pressure to start.

How to check fuel pressure while cranking engine?

TEST 1: Checking The Fuel Pressure Specification. So, the very first thing you need to do is to verify that the fuel pump is delivering at least 50 PSI of fuel pressure while the engine is cranking. Yes… while the engine is cranking. Locate the Schrader valve on the fuel line that connects to the ‘Spider’ assembly.

Why is LB7 injector failure a common problem?

We know today LB7 injector failure is a common problem, and because the operating tolerances inside the fuel system are so tight, proper lubrication from the diesel fuel is critical.

Why does my GMC Sierra suddenly stop running?

Truck suddenly stops running, acting like it’s out of fuel. There is fuel in the gas tank and, I can hear the fuel pump when I turn the ignition on. Is there a fuse, or relay that is maybe causing this to happen?

What causes a Duramax injection pump to fail?

As a result (allegedly), the lack of lubrication in the fuel can cause a premature failure of the injection pump, to a point where it won’t allow the LML Duramax to run. You can be driving down the road and everything seems normal, and when the pump fails, the truck just shuts off.

What to do if your GMC Truck wont start?

No relearn is necessary. In this situation, the vehicle will start and run with no problem. If the vehicle won’t start, check your scan tool for a VTD (Vehicle Theft Deterrent) Fail-Enable Mode trouble code, or if the security light on the dash is illuminated.

How does a GMC Sierra 1500 fuel pump work?

The older model has steel lines coming off of the top of the pump to the frame rail and then connects to the frame steel lines with short hoses, you’ll need line wrenches and the ability to curse. The newer style has plastic tubes from the plastic pump casing and uses those quick connect fuel fittings and you’ll need the disconnect tool.

How to reset the computer on a GMC Truck?

Click to expand… Click to expand… Click to expand… Click to expand… Click to expand… This system consists of: the Powertrain Control Module (ECM or PCM), Body Control Module (BCM) or Passkey theft deterrent module, and the ignition lock and key. In most cases, the theft deterrent duties are handled by a Passkey module.

What are common reasons my GMC Safari won’t start?

What are common reasons my GMC Safari won’t start? While there are a variety of reasons your GMC Safari won’t start, the most common 3 are a dead battery, an alternator problem, or failed starter. How is a no-start diagnosis fixed?

What should I do if my diesel truck won’t start?

Turn the key to the start position and allow the engine to crank for no more than 30 seconds. If the engine doesn’t start, turn the key to the off position and try the following: Plug the truck into an electrical outlet. Diesel trucks have a 3-prong plug located under the front bumper or grill area.

What to do if your engine cranks but not starts?

Loosen the high pressure line at two injectors and visually check fuel delivery while cranking the engine. Replace injection pump, if fuel is not being delivered. Check the injection pump timing.

Why does my 6.6L crank no start?

Possible someone shimmed the valve and lost parts– COMMON. Pull the “U” hose from the fuel rail– plug the hose. Connect a hose to the nipple on the fuel rail. Crank the engine— any fuel coming out of the fuel rail nipple — the FPRV is leaking fuel– IT WILL NEVER START.

What to do if your Duramax crank wont start?

Buy a new filter head– little over $100, and comes with a new filter and WIF sensor. i replaced the fuel hose to/from the filter head with clear line from the hardware store and then pressurized the fuel tank to 15 psi with a compressor and found the system full of air from a leaking quick connect fitting on the fuel line near the fuel tank.

Is it bad to start engine with starter fluid?

Starter fluid = BAD if it’s ether you’re using. You must log in or register to reply here.

What’s the problem with my GMC Sierra 1500?

Hi everyone I’m having the same problem I have a 1997 Chevy Tahoe LT 5.7 Vortec V8 2WD it’s stays in first gear and it don’t go into reverse but the lights go on when you put in reverse and no Check Engine light on anybody know what it could be the problem Hey! I have a 94 GMC suburban. Trans was leaking so I put in some stop leak.

Why does my GMC Suburban no start flooding itself out?

If I unplug one of the injectors it starts up and idles and I am able to plug the injector back in and it will idle as normal. If I try and start it with both injectors plugged in, it just cranks and cranks without attempting to start.

Why does my 4 wheel drive not engage?

The transfer case could pose another reason why your 4 wheel drive fails to engage. This could be due to the vehicle not coming to a complete stop to allow it to engage. This is because the splined pin and gears of the actuator need to align 100% with the gears inside the transfer case.

How many volts does GMC Suburban 5.7 have?

Map sensor is showing… 1.15 Volts with 20 PSI vacuum. Sensor maintained the 1.15 psi for over 2 minutes and the voltage went up to 1.17 towards the middle of two minutes, however the voltage never dropped until I released the pressure. Coolant temperature sensor showed…

What is signal wire on GMC Suburban 5.7?

The signal wire goes from 0.51 volts at an idle to 4.56 volts at wide open throttle. Oil pressure sensor tan middle wire shows a good ground. Grey wire show 8.75 volts and the red wire shows 12.37 volts. If I jump the two end wires together the fuel pump runs constantly however, this time is wont start.

What’s the oil pressure on a GMC Suburban 5.7?

It was showing 2.6 at cool temp and went down to like 0.2 ohms at around 190 degrees in boiling water. I also replaced the fuel pump relay and the oil pressure sensor.

Are there any problems with the 5.3 liter Chevy engine?

The 5.3 engine not only can succumb to engine sludge, but to faulty sensors. While this is a very common problem with this type of engine, it can be frustrating nonetheless. There are some quality oil sensors that will increase the performance.

Are there problems with GM 5.3L V8 engine?

While the AFM system has been shown to improve fuel efficiency in testing, it has some long-term issues that have plagued consumers: Now, to be fair: Not every GM 5.3L V8 has problems with AFM. Many consumers report a trouble-free ownership experience. Still, AFM problems exist.

Why do I have problems starting my Chevy Silverado?

Automatic choke issues may cause problems. It could be the fuel filter needs a change. Using an engine additive may cause problems too as it dissolves so much sediment in your tank that it clogs everything up. Starters are bullet proof on the Chevy but worth changing every 10 years as is the alternator.

Why is my GMC Sierra 1500 engine not working?

Engine miss in cylinder one. Dealer replaced valve covers and baffle in oil pan to redirect oil flow. Claimed this is causing oil in cylinder one to fowl spark plugs. GM suggested replacement of the pistons and rings but once the head was removed there was substantial scoring of the cylinder walls. At that point GM agreed to replace the engine.

Why does my Chevy truck run so poorly in cold weather?

Not sure if that would cause the truck to run so poorly in cold weather though. PCV hose is a strong vacuum source, and it will cause a massive vacuum leak (depending on the size of the crack) that will change how the engine operates. It may contribute to your cold weather performance.

What is coolant temp on GMC Suburban 5.7?

Sensor maintained the 1.15 psi for over 2 minutes and the voltage went up to 1.17 towards the middle of two minutes, however the voltage never dropped until I released the pressure. Coolant temperature sensor showed… approximately 2.5 ohms at room temperature and went down to 0.21 ohms in 190 degree boiling water.

Why does my 1988 GMC Sierra 1500 not start?

I’m having the same problem with my 1988 GMC 1500 I was told its the starter I’m going to replace it I guess that will determine if its the starter ornot just wwish I had a for sure wayof knowing 37 people found this helpful. Having same issue. Changed out starter two days ago. Still is a hard start. Sometimes I need starter fluid

What makes a 1988 Chevy 5.7 TBI run rough?

1988 Chevy 5.7 tbi runs rough cold and…. Ok here is the deal. This truck has a good motor but it lacks power all the time not like barely moves but it won’t burn rubber. Now when its cold it runs really rough coughing and sputtering.

What makes a Chevy 5.7 TBI run cold?

The regulator is spring loaded and if the pressure isnt enough the fuel doesnt even get to the return line.. Its a hell of a lot easier than checking it with a gauge. There is a temperature sensor that tells the computer how to mix fuel/air since the truck does not have a choke. I have had to replace this sensor on a few of my past trucks.

Can a fuel pump cause a no start condition?

CASE 1: If your fuel pressure gauge read 50 PSI or more as the engine cranked. This means that the fuel pump on your 4.3L, 5.0L, or 5.7L is OK and not the cause of your No Start Condition. The next step is to observe the fuel pressure gauge’s needle (after your helper stopped cranking the engine).

How to check for fuel leaks in a GM 4.3L?

Once the fuel pressure gauge registers pressure, check for fuel leaks around the Schrader valve. It’s very important that NO fuel leaks are present for the accuracy of the test. Once you have verified no fuel leaks, continue to the next step. Have your assistant crank the engine as you eyeball the fuel pressure gauge.

What causes the idle speed to go up or down?

The idle air control valve is programmed to regulate and maintain the engine idle speed at a constant rate. If the valve fails or has any issues it can cause the idle speed to be thrown off. This may result in an unusually high or low idle speed, or in some cases a surging idle speed that repeatedly climbs and falls. 2. Check Engine Light comes on

What causes the Check Engine light to turn off at idle?

At idle, the ECM will not get the correct information and the throttle will variate randomly causing idle surges. The check engine light will randomly turn on and off even if the car is running smoothly without any jerks and stalling.

How can I tell if my idle control motor is working?

Look for a difference in idle speed. Allow the engine to run for a minute so it settles to a consistent idle, then take note of any difference in the idle RPMs versus the idle you observed earlier. If the idle has not changed at all, it’s likely because your idle control motor has not been functioning.

Why does my Chevy Truck start and idle?

Not sure why this test caused a better and longer gas flow than the above test of just putting the ignition in the ON position and seeing how much gas comes out of the line before the fuel filter. Last test says to start the vehicle and remove the relay.

Why does my IAC engine stall on startup?

The IAC motor allows a metered vacuum leak to control idle. If the motor itself is bad or the port is clogged, it won’t be able to raise the idle on startup. So it will fire with the initial rich mixture controlled by the PCM, but if it can’t raise the idle it will stall. Its not a No Start its a Start then immediately stalls.

When is put in drive it stalls out?

95 chevy 1500 4×4 5.7L starts and idle in park. When put in drive it stalls out? | GM Truck Club Forum 95 chevy 1500 4×4 5.7L starts and idle in park. When put in drive it stalls out?

What’s the idle RPM on a Silverado Silverado?

Re: high idle PLEASE HELP!!! When i pull the vac line from the booster the idle rpm stays at the 1200 I had been idling for 2 yrs. It only runs rougher but maintains 1200. When I pull the same line from the back side of the intake she revs really high. Enough to scare you so I plugged it back in really fast.

What causes a car to run lean at idle?

If the root cause is an electrical problem within the idle air control valve itself, you will likely have to replace the IAC. A vacuum leak is a hole in a vehicle’s air intake system behind the mass air flow (MAF) sensor that allows unmetered air into the engine. This throws off the expected air fuel ratio and causes the vehicle to run lean.

What are the symptoms of a car not staying running?

Some of the symptoms are: car dies right away, car cut off after starting, car won’t stay running in the cold, and car won’t stay running. Below is 5 ways to fix the problem. Number one. Idle air control. The idle air control is responsible for maintaining idle.

Why does my Truck start when I press the gas pedal?

If it has gasoline in it, your regulator is bad. It’s about $50 for a new one at AutoZone. It’s a common problem on this engine. If this does turn out to be the problem, the reason it starts when you hold the key is because you are putting the ECM in “flood mode”.

Why does my car not run when my foot is on the gas?

Top 5 reasons why your car won’t stay running unless foot is on the gas. Some of the symptoms are: car dies right away, car cut off after starting, car won’t stay running in the cold, and car won’t stay running.

What was the ignition module for a 1996 GMC c2500?

1996 GMC C1500, C2500, C3500 Pick Up. 1996 GMC K1500, K2500, K3500 Pick Up. All of the information you need to diagnose a misfire or a no-start problem (caused by the ignition coil, the ignition module, or the crankshaft position sensor).

Can a GM 4.3L Vortec engine be tested?

This isn’t possible on the GM 4.3L, 5.0L, and 5.7L Vortec engines with a ‘Spider’ fuel injector (the fuel injector is inside the intake manifold plenum and its outside electrical connector doesn’t allow for such a test).

What are common reasons my GMC Sonoma won’t start?

What are common reasons my GMC Sonoma won’t start? While there are a variety of reasons your GMC Sonoma won’t start, the most common 3 are a dead battery, an alternator problem, or failed starter. How is a no-start diagnosis fixed?

What’s the fuel pressure on a 1996 Chevy c1500?

I stuck a fuel pressure gauge on the fuel rail port and was reading about 50 psi. Unfortunately, as high as that sounds, the injectors won’t even open until you are at about 60 psi.

What causes a GM 4.3L engine to misfire?

If fuel is missing from any one specific engine cylinder, it will misfire. GM in all its wisdom decided to use a fuel injector assembly (affectionately referred to as the ‘Spider’) that sits inside the intake manifold plenum. When this bad boy starts to fail (by leaking fuel inside the plenum), it will cause a misfire condition.

Can a Chevy C / K 1500 run without fuel?

Also I haven’t fully checked the Spark, but the Truck run’s fine when you spray Starting fluid into the Throttle body. Any suggestions on why the truck isn’t accepting the fuel, it cranks fine, just wont run without starting fluid. these trucks have to have between 55-65psi of fuel to run.

I stuck a fuel pressure gauge on the fuel rail port and was reading about 50 psi. Unfortunately, as high as that sounds, the injectors won’t even open until you are at about 60 psi.

Is there a fuel problem with cranks but wont start?

yes unless you can get your hands on a lift and drop it out that would be much easier. If its the first time its been changed it will prob be a bit a of a job. Especially if you drop it and u have a lot in the tank. And when your removing the actual pump be real careful nothing falls inside or u will have bigger problems. Re: Cranks but wont start.

The crankshaft position (CKP) sensor monitors the position or rotational speed of the crankshaft. If the crankshaft position sensor has failed completely, and isn’t sending a signal to the (ECU) at all, then the computer won’t send any fuel to the injectors. This will leave you unable to start the car.

How to know if your engine has no spark?

First Confirm Your Engine Has No Spark. 1 Disable the fuel system by removing the fuel pump fuse or relay. 2 Insert a spark plug tester into the plug boot and ground it on a piece of metal on the engine. 3 Finally, Have someone crank the engine and watch for spark.

Can a bad crank cap cause a no start?

The ignition control module could be bad. The crankshaft position sensor could be bad. Testing the distributor cap, the ignition coil to distributor cap high tension wire, the ignition coil, the ICM, and the crank sensor can by done by the do it yourself-er (DIY’er) and the following tutorials will help you test the ignition system:

How can I tell if my engine is cranking or not?

My recollection of that, again fragile memory, was that it was a wire that was connected to the coil. Pull the air cleaner and look at the injectors with someone cranking the engine, you should be able to see the fuel spray from the injectors.

What should compression reading be on GM 4.3L?

When performing an engine compression test, what you’re looking for is an average compression reading of less than 90 PSI across all or the majority of the engine cylinders. If you have one or just two readings that are under 90 PSI your GM vehicle will still start and run, albeit with a misfire condition.

Why does my GM Vortec engine not start?

This is partially due to PCV flow, but can also be an indication of a leaking fuel pressure regulator (arrow). Photos: Jeff Masterman CPI system at 54 to 64. However, many techs have encountered hard-start or no-start complaints with pressure readings as high as 56 to 57 psi on a cold engine.

Why is my air conditioning not working on my GMC Sierra?

While there are a variety of reasons your GMC Sierra 1500 air conditioning won’t work, the most common 3 are a refrigerant leak, an electrical climate control issue, or a problem with the air conditioning compressor.

Can a GMC Jimmy start in the Cold?

I have a 1999 GMC Jimmy with a 4.3 vortex engine and it won’t start in the cold or wet, rainy weather.

What should the temp be on my GMC Truck?

After getting it back from having leaking intake gasket replaced, the temp would go up to 260 before it went back to 170 and then would sit for a little bit, go back to 210, back to 170, back to 245 or so, then back to 170, but It never seemed to run hot. I changed the thermostat with a brand new 190* from NAPA and it seemed to cure a little of it.