Radiator Fan Clutch

Leaking fluid and a fan that is seized spins roughly or spins excessively indicates a bad fan clutch.

S20 fan edition. The fan clutch is a thermostatic device which means it operates based off temperature and is. On a functional fan clutch the fan blades will all be lined up neatly inside the housing which should sit upright with an equal amount of space between the radiator and engine. While many newer vehicles now use electric cooling fans to keep the engine cool many older vehicles used a mechanical fan clutch to control the fans.

Fan clutch types. Depending on whats wrong with your fan clutch it may stop spinning all together or it may just not spin at the right speed. As temperatures increase the clutch engages so that the fan is driven by engine power and moves air to cool the engine.

The fan clutch is a cooling system component that controls the operation of the engine cooling fans. Radiator cooling fan clutch for bmw 3 5 m z3 e36 e46 e53 e34 series e39 528i 525i 530i 338 728i 728il x5 328i 325i 323i 320i 520i fan clutch 11527505302 45 out of 5 stars 93 3999 39. Check the fan blades for cracks and damage as well.

Electric cooling fans may not operate because of a malfunctioning switch bad fan relay defective fan motor or faulty control module. The likely symptoms of a failed or failing cooling fan clutch are the same whether the fan is thermal or inertial. To get specific the fan clutch is responsible for determining the speed at which the cooling fan spins against the vehicles radiator.

When the fan clutch engages it spins up greatly increasing air flow through the radiator and over the engine. This may cause overheating poor gas mileage or excessive noise. It is typically bolted between the water pump pulley and the fan.

What this means is that the engine wont properly be cooled. The engine overheating when there is no problem with the coolant thermostat or the radiator likely means the fan itself is the issue. A small amount of resistance always keeps the fan spinning but its basically free wheeling until the fan clutch engages.

How to identify a cooling fan clutch problem. X research source check to make sure each of the bolts holding the fan clutch in place is secure and intact. The cooling fan clutch is part of the cooling system that engages or disengages the fan depending on the engine temperature.

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