Fan clutch what is

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The speed at which a thermal fan clutch spins a fan depends largely on the exact fan you choose. Standard-Duty Thermal Fan Clutch : This design turns the fan at percent of the water pump shaft speed when engaged, and percent when disengaged. Heavy-Duty Thermal Fan Clutch : This fan style turns the fan at percent of the shaft speed when engaged for increased cooling. When disengaged, it turns the fan at percent. Severe-Duty Thermal Fan Clutch : Severe duty thermal fans turn the fan at percent of the shaft speed when engaged and percent when disengaged.

These variables are manufacturer-specific and fan speed is dictated based on the level of cooling required. These problems are often caused by a bad bearing, which may be seized or have excessive play, or by a worn or loose thermal spring. Armed with this information, you can identify a bad fan clutch and replace it with the proper aftermarket option.

Are you saying that, if you grab a fin and try to spin the fan but it stops very nearly as soon as you let go of it, the clutch is bad? It should stop spinning relatively quickly—but if, after the engine has stopped, it just spins and spins, then it points to a problem with your fan clutch. Is it ok to use a heavy duty fan clutch when a standard is normally used or came from the factory? So my question is. I have changed out my fan clutch 3 times already and my car is still over heating?

Changed it out again this past weekend stopped over heating but now less power? Then this morning started up had the power it should but once again started to over heat!! Please help me!! What is wrong with my car?? Its a Oldsmobile bravada. Do you think there could be another reason your engine is overheating?

What is the age of the coolant? Has the radiator been flushed within the last 4 years? Was the thermostat replaced in the last 4 years? What is the age of the water pump? Did you prove the water pump is functioning the way it should? How about hoses? What are their ages? Did you ever see an old hose collapse?

You have too many questions and not enough answers. A loud noise is thus produced from the engine when the fan is blown at full speed. Engine fan becomes loose and wobble due to bad or failing fan clutch.

You can hear this wobbling sound of the fan sometimes while you are driving, especially high speeds. You can easily check this by running the engine while your vehicle is in park or neutral and opening the hood to see if the fan is wobbling while it spins. Also, oil coming out from the hub may be due to loose engine fan. A bad or faulty one will cause excessive drag on the engine which leads to a reduction in power and fuel efficiency of the vehicle.

This happens as the faulty one causes the fan to become permanently engaged. Absolutely, a bad one can damage your air conditioning system, as it acts as a heat exchanger for the air conditioning unit. Thus, when the fan becomes defective, it creates various complications in the air conditioning unit.

This causes lukewarm air, burning smell, overheating when idle. A failing one could leave you stranded with expensive repair bills. So make sure you seek professional help once you realize that you have a bad or failing one. Diesel Components Inc. Our professional team has over decades of expertise in providing services of fan clutch.

We look forward to assist you with the best services and products. We're not around right now. But you can send us an email and we'll get back to you, asap. Founded in , Diesel Components Inc. Paul area. Throughout our journey, we have been continuously adding various turbocharger and fuel injection brands to our services.