Radiator Fan Assembly Replacement

Fan blades help to lower the temperature of the engine. The cooling fan motor is an electric motor that turns the fan blades. When the vehicle is in traffic or under heavy load, the engine relies on the fan to cool itself.

When a vehicle is moving, air flows through the radiator and cools the engine. When a vehicle is in stop-and-go traffic or stuck at a traffic light, air needs to be pushed through the radiator. The engine’s cooling fan does this.

The cooling fan motor is operated by a switch located in the radiator or the engine's cooling passages. The electric cooling fan turns on when the engine's coolant temperature reaches approximately 195 to 210° F.

The cooling fan assembly is attached to the radiator. To replace the assembly, it is detached from the radiator and a new one is installed. The engine is started and run to verify correct cooling fan operation.