How important is the radiator fan?

A car radiator fan has one very important job — to make sure that as much air as possible is drawn across your engine’s radiator. This helps to ensure that your motor is able to maintain a safe and stable temperature no matter how fast you’re driving or how hot external temperatures get.

When do you bypass the cooling fan relay?

NO! The fan will come on as soon as the engine gets slightly above normal running temperature. Under normal conditions, natural air flow will mean that the fan is not needed, so bypassing the relay will cause the engine to be slightly overcooled and will also waste fuel.

Where does the cooling fan in the engine go?

The cooling fan in the engine compartment should turn on to pull air through the radiator and A/C condenser. A main cooling fan for the radiator. A second fan for the condenser.

How to test / check a radiator fan?

HOW TO TEST/CHECK A RADIATOR FAN. Bypass coolant temp sensor, relay and computer 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.

How to bypass coolant temp sensor, relay and computer?

Bypass coolant temp sensor, relay and computer – YouTube HOW TO TEST/CHECK A RADIATOR FAN. Bypass coolant temp sensor, relay and computer 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.

Is it better to bypass the cooling fan relay?

Do it right the first time! Bypassing the Cooling Fan Relay will take you longer to do than it would if you just replaced it. Not too mention if the fan can’t cycle off and on then you risk burning the motor and creating more problems. My point is this….

What happens when you bypass the air conditioner relay?

Under normal conditions, natural air flow will mean that the fan is not needed, so bypassing the relay will cause the engine to be slightly overcooled and will also waste fuel. Once the engine is starting to get too hot, the fan is already on, so bypassing the relay will make no difference.

The cooling fan in the engine compartment should turn on to pull air through the radiator and A/C condenser. A main cooling fan for the radiator. A second fan for the condenser.

How can I tell if my cooling fan is working?

The quickest way to tell whether or not the electric fan (s) are working is to start the engine; let it reach normal operating temperature and then turn the A/C on. The cooling fan in the engine compartment should turn on to pull air through the radiator and A/C condenser. A main cooling fan for the radiator.