New fan motor noise on Denali. Can't figure out what it is.

ggmcandyggmcandy Member Posts: 1
edited June 2015 in GMC
I have a 08 Denali that we bought this past winter. Run fine, mechanically sound w/ no problems. Since it's been warmer when I start it, it sounds like there is a louder fan motor coming on. It's noticeably louder. I shut off the whole heat/ac control thinking it was a fan motor and it was still running. I have no clue what this running motor could be. Anyone have any ideas? It sounds like it runs fine and has a job to do but I can't nail down what it is and its driving me nuts. It's very noticeable when you start the car.

Answers

  • skyisthelimitskyisthelimit Member Posts: 46
    How about the cooling fan clutch? Does the fan noise occur when the car is in motion?
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