Why does my car fan stay on after I turn it off?

Why does my car fan stay on after I turn it off?

It’s normal for some vehicles to have a fan run for a few minutes after the car is shut off, generally to keep the engine cool. However, if the fan is running for an extended period, the fan itself can become damaged due to overuse. It’s possible you may have a module or relay failing in your car.

How do you test a fan relay switch?

How to Check a Fan Relay

1. Look at the markings on top or side of the relay case and locate the two control circuit terminals, which connect to the relay’s coil, and the two power circuit terminals, which let electrical current pass to the fan.
2. Connect the leads of an ohmmeter to the power terminals on the relay.

Does the radiator have anything to do with the AC?

Yes the radiator does in a way have something to do with the ac. Depending on what kind of coolant you have for your ac you will either have a small radiator in front of the regular radiator or you may have a part of the regular radiator where the ac uses to cool things down.

Can a coolant leak cause AC to not work?

Freon, or coolant, is the chemical in the air conditioning system that cools the air. If the system is leaking, then this chemical will eventually run out. Today’s A/C systems are more sensitive than the older ones. The air conditioner will not work properly if there is not enough of this chemical.

Does engine coolant affect ac performance?

High coolant temperature affects A/C performance. The engine cooling system has an indirect influence on the performance of the A/C system. High under hood temperatures can be the cause of poor A/C output.

Can low oil affect air conditioning?

In addition, the oil film protects the rubber seals -in the refrigerant lines and at joints/connections- greatly reducing the volume of refrigerant that leaks out. As a result, an AC compressor can fail to cool air or have all kinds of problems if it doesn’t have enough oil.