What causes low oil pressure on a GM 5.3L engine?

GM has encountered numerous oil pump failures with the 5.3L engines produced from 2007-2013, resulting in a loss of oil pressure due to sticking pressure regulating valves. On these engines, the oil pump is mounted on the front of the engine and is driven off the crankshaft at twice the speed of a camshaft driven pump.

Why does my car have a low oil pressure message?

These symptoms often occur with no indication of a low oil pressure condition such as engine related noises. Some technicians replace the oil pressure sensor in a futile attempt to eliminate the low oil pressure message.

Is it normal to lose oil pressure during lube service?

Oil Pressure Loss During Lube Service While it is not a common problem, a technician can encounter a loss of oil pressure when replacing the oil filter while performing a lube service.

Why does my oil stick on my car?

On these engines, the oil pump is mounted on the front of the engine and is driven off the crankshaft at twice the speed of a camshaft driven pump. The pump is operating on unfiltered oil, therefore any debris/sludge in the oil can restrict the movement of the pressure regulating valve in the oil pump, causing it to stick.

Oil Pressure Loss During Lube Service While it is not a common problem, a technician can encounter a loss of oil pressure when replacing the oil filter while performing a lube service.

How many gallons of oil does an engine pump need?

The oil pump is the heart of the engine – it pumps vital lubricant and supplies pressure to every moving part. The pump is required to provide 3 to 6 gallons of oil per minute while also maintaining system pressure.

Why is my oil pump not dispensing oil?

Let’s learn about five of the most common signs: The pump regulates the pressure as well as keeps the engine parts lubricated by supplying oil to different parts. So, it makes sense that when that machine starts wearing, it cannot dispense oil properly.

How does Moroso p / n 22163 oil pump work?

Moroso’s P/N 22163 pump bolts in where the factory unit resides and allows for a greater volume of oil flow and an adjustable pressure relief spring. The spring is installed on the side behind that hex-head fastener and can be adjusted to suit the needs of the engine.

Why does my oil pump have low pressure?

(Engine oil pan removed while turned over.) Step 5 – The oil pump is also designed with an oil pressure relief valve and spring which regulates pressure. If this valve becomes faulty caused by a broken pressure spring the pump will have low oil pressure.

How much pressure should I put on my oil pump?

The flow and pressure of engine oil created by the oil pump need to fit the parameters of the application. There is an old rule of thumb that an engine needs about 10 psi of oil pressure for every 1,000 rpm. That guideline is still a good rule to follow. However, there are exceptions to the rule.

How does a high pressure oil pump work?

“A high-pressure pump is an oil pump with a higher pressure relief valve setting,” states Speed. “There are three ways to increase oil pressure: 1) Increase the viscosity of the oil (higher viscosity means greater resistance to flow). 2) Increase the pump size, which increases oil flow.

What causes oil to separate from the timing chain?

Over time, oil begins to separate as it heats up and is exposed to natural solvents found in gasoline. If the timing chain begins to wear out, small metal pieces can break off the chain and find their way into the oil pan.

When to go to the Mechanic about a bad timing chain?

If the belt is jumping because it’s gotten loose, it can also flail around and damage other parts of the engine. If your engine won’t start or starts driving rough, indicating it may be on its way to failing, contact a certified mechanic for inspection and repairs. 4. Check Engine Light is on

Is the timing chain on an engine made of metal?

In order for your engine to fire, the timing chain must smoothly rotate around the gears without hesitation. Although the timing chain is made out of metal, it is subject to wear and tear and may break if not replaced as recommended by the manufacturer.

What causes timing chain stretch on Nissan V6?

Some of the most notorious engines for timing chain stretch include the GM High-Feature V6, Ford Modular V8 and Nissan VQ V6. All of these OEMs have stated that the lack of oil changes and use of the wrong oil causes the timing chain stretch conditions.

What kind of engine does a 2002 suburban have?

I own a 2002 Suburban with the LM7 engine in it and it’s running strong at 220k miles with virtually zero engine issues over my course of ownership. It has hands down been the cheapest car I’ve ever owned from a maintenance and repair perspective. The engine blocks are nearly bulletproof on these cars.

Can a bad timing chain cause an engine to skip time?

In some cases, a worn timing chain may cause the engine to jump time a few teeth. If this happens on a multi-cam engine it may appear to be a dead miss on multiple cylinders. The bad oil can also damage the tensioner which makes the possibility of the engine skipping time or a catastrophic failure even greater.

What causes low oil pressure on a GM 5.3L engine?