what does a radiator fan clutch do
Step by step guide on how an automotive fan clutch works. This article pertains to all vehicles equipped with a clutch fan. Step 1 - A fan clutch function is to engage the fan blade to the shaft when heated which is mounted to the front of the engine attached to the water pump. This clutch is constructed using silicone grease, and a temperature sensitive coil spring that expands and contracts with heat from the radiator. Clutch Fan.