Fan clutch stuck on?

Tiny
VERNNH1
  • MEMBER
  • 2018 CHEVROLET SILVERADO
  • 6.6L
  • V8
  • 4WD
  • AUTOMATIC
  • 170,000 MILES
Fan roars at all speeds, don’t notice it much above 50 MPH. Is there a sensor?
When engine is off, I can move the fan and there is resistance.
Tuesday, March 28th, 2023 AT 5:00 PM

1 Reply

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,643 POSTS
It sounds like the cooling fan relay is stuck on, I would remove it temporarily to see if the noise stops and if so, install a new relay. Here is the location so you can check it out. Check out the images (bBelow). Please let us know what happens.
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Wednesday, March 29th, 2023 AT 6:45 PM

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