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My cooling fans are not turning on?

Tiny
RODJAMES
  • MEMBER
  • 2004 CHEVROLET MONTE CARLO
  • 3.4L
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 220,000 MILES
I recently replaced the cooling fans and the coolant temperature sensor. I already tested the fans by jumping them off to the battery and they work. What could be the issue?
Wednesday, December 14th, 2022 AT 8:50 PM

1 Reply

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 48,363 POSTS
We need to check for power at the fuse (fan cont1 and fan cont2 and 3). here is a guide to help and I have included the fan wiring diagrams so you can see how the system works with the fuse location as well.

https://www.2carpros.com/articles/how-to-check-a-car-fuse

Check out the images (below). Please let us know what happens.
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Thursday, December 15th, 2022 AT 2:37 PM

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