How do I know if my fan pulley is bad?
To confirm the diagnosis, start with this simple test: Spin the fan as hard as you can on an engine that has not been started that day. If the fan rotates more than five times, you can bet the clutch is bad. You should feel some resistance and the fan may spin up to three times, depending on the ambient temperature.
What is engine fan pulley?
Automobile engines typically use pulley systems, such as those that work with the alternator, fans, water pumps, and timing gears. A fan pulley is, as its name implies, a pulley that is attached to a fan. When the belt moves, it spins the pulley, which turns a hub and twirls the attached fan blades.
How much does it cost to replace a pulley?
Idler Pulley Replacement Cost The cost to replace the idler pulley of your driver belt will usually be somewhere between $80 and $200. The cost for the new part should only be anywhere from $40 to $90, while the cost of the labor will be anywhere from $40 to $110.
Why is my fan pulley wobbling?
If the pulley is wobbling with the fan, that implies the broken fan has taken out the waterpump from the vibration. If the fan clutch is gone, the fan wobbles, but not the pulley. The clutch is a large round unit between the fan and pulley.
What should I do if my car fan spins?
Start by parking the car, turning off the engine, and engaging the handbrake. Pop the hood and use a hood strut to keep it open. Ensure that the engine is cool and off before working on the car.
Is an AC compressor supposed to spin with the pulley?
Your post is a little confusing to me. The AC compressor clutch has a free-spinning outer pulley. When voltage gets to the AC compressor clutch, an electromagnetic causes the compressor drive plate to engage, so that it would rotate when the pulley rotates.
Why does my car make a fan clutch noise?
From fan clutch roaring to fan clutch noise, there are many signs you should be on the lookout for in this case. The clutch, though small, plays a vital role in the functioning of your car. It gauges the temperature of the air coming into contact with the radiator and protects the engine.
How does the oil work in a fan clutch?
The latter fills with oil and has a valve that controls the flow of oil between two compartments. One acts as a holding area while the other directs to the clutch. As the valve opens, the oil enters the clutch, and this leads to the fast movement of the fan.