How To Test Engine Cooling Fan Module

To replace the module the radiator fan relay is located below the left front headlamp module.

How to test engine cooling fan module. If you suspect that your cooling fan motors may be having an issue. So cooling fan motors are an important component to any engine cooling fan assembly. The cooling fan relay is the relay that controls the engine s cooling fans. This can also happen when the cooling fan module is weak and therefore the fans work at a slower pace and are not able to regulate the heat.

Most cooling fans use electric motors that have a moderate to high current draw and as a result are commonly controlled using relays. Test the new unit by switching on the car to see how it. If the fan comes on when the ac is running at max but doesn t run when the engine is hot check the temperature sensor or switch that sends the signal to the computer or module to operate the fan. Learn how to quickly verify the circuit and control system with this case study on a 2009 lincoln.

Failure of the cooling fan module to regulate the temperature inside the hood of your car can lead to the engine overheating. Most likely failure and most difficult if the radiator fan control module has failed you will need to replace it with a new one there is no way to repair it. When you re driving air flows through the car radiator to keep your engine a normal temperature. Check the relay for the fans.

How to test ford and lincoln 3 wire electric cooling fans. When the correct parameters are met a temperature switch or. The headlamp module must be removed to access the relay. On modern vehicles a bad sensor usually triggers the check engine light.

But if you stop for example in a traffic jam your engine has to use an electric cooling fan to force air through the radiator. The fan is temperature controlled to make sure that the engine gets enough cool air to avoid overheating.