Cooling fan. Like the thermostat, the cooling fan has to be controlled so that it allows the engine to maintain a constant temperature. Front-wheel drive cars have electric fans because the engine is usually mounted transversely, meaning the output of the engine points toward the side of the car.What is a cooling fan switch?
Cooling Fan Switch. The electric cooling fan switch is installed into a coolant passage of the engine near the thermostat housing and operates the radiator electric cooling fans when the coolant temperature reaches a specified temperature.What is an electric fan switch?
The engine's electric fan switch is mounted into the cooling passage of the radiator or into one of the lower coolant pipes coming from the bottom of the radiator. The fan switch is a temperature sensitive two stage thermal switch that remains open (OFF) until the coolant reaches a certain temperature.