Clutch fan stuck on

Hi and thanks for using 2CarPros. Com.

The fan clutch operates based on engine compartment temperature. When the engine is cold, you should be able to turn the fan by hand. If you cannot, chances are you got a bad clutch. Take a look through this information. It discusses noise issues. See if they are what you are experiencing and let me know if it helps.

Fan Clutch Diagnosis

Fan Noise
Fan noise is sometimes evident under the following conditions:
When the clutch is engaged for maximum cooling.
During the first fifteen seconds to one minute after start-up until the clutch can redistribute the silicone fluid back to the fluid's normal disengaged operating condition (after overnight settling).
Fan noise, or an excessive roar, generally occurs continuously under all high engine speed conditions (2,500 RPM and up) if the clutch assembly locks up because of an internal failure. If you cannot rotate the fan by hand, or if there is a rough grating feel as the fan is turned, replace the clutch.

Looseness
Under various temperature conditions, a lateral movement is visible at the tip of the fan blade. About 6.5 mm (1/4 inch) maximum lateral movement, measured at the fan tip, is allowable. Replacement of the fan clutch is not necessary.
Ensure that the fan blade is installed properly. If the fan is installed incorrectly, the fan will cause an overheating problem.

I will watch for your reply.

Take care,
Joe

Welcome back. The temperature sensor is nothing more than a thermostatic spring which expands and contracts based on temperature. Did you look through the diagnosis list I sent? Does it fail at any of the symptoms?

With the engine cold and off, can you easily turn the fan? There will be some resistance, but it should turn somewhat easy.

If you can turn it easily, it sounds like it is working correctly. They are noisy.

Honestly, I would think when the engine was cold, it would not be as noticeable. However, they can still be heard.

No problem. I wish I had a way to quiet it for you, but they just make noise. Take care of yourself and let us know if you have questions in the future.

Take care,
Joe