Question about 2005 GMC Yukon Denali

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Front Climate Control Blower malfunctioning

The front climate control blower on my 2005 Yukon Denali has a mind of it's own! Sometimes it will blow air out the vents, defrost, etc. but most often, only blows a tiny amount of air out, even when on "full force". As I am driving down the road, it will randomly start to blow at the force I have it set on. When I turn my car off, I can hear the blower/fan motor still on, but nothing is coming out of the vents. This occured for about 2 weeks, until my battery went dead. So, I removed the fuse until I could fix it. Any ideas?

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  • Anonymous Jan 17, 2009

    i have the same problem but mine is not a denali... the heat blows out when i am going over 45mph but not before that... you can hear the motor thumping but it does not blow?

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  • GMC Master
  • 12,440 Answers

Does your vehicle have manual or automatic climate control ? The blower motor control processor may be the problem .
Chevy GMC Blower Fan Stuck On

Posted on May 13, 2017

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6 Suggested Answers

6ya6ya
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Posted on Jan 02, 2017

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SOURCE: Rear Climate Control knobs don't work

Make sure that the "AUX" button is on, or they will not work.

Posted on Jul 14, 2008

  • 1 Answer

SOURCE: climate control 04 yukon denali

I would try resetting both sides. i.e., Set both sides to hot, then back down to cool. Also check your fuse. I am not sure, but would think, you have a fuse for all these different items. It is time consumming, but look through and find your blown fuse. Hope it helps.

Posted on Jul 24, 2008

  • 1 Answer

SOURCE: climate control 04 yukon denali

Removing the fuse for a few minutes and turning the controls on both driver side and passenger side to the highest setting and then turning them down slowly until the system started cooling has worked for me. Thanks for the suggestions---saved me $2500.00 on a useless dealer estimate to fix problem. These dealers are dangerous---they were the ones that caused my problem when they unhooked the battery while replacing my ignition switch.

This is a good forum.

Posted on Aug 12, 2008

  • 6 Answers

SOURCE: 2004 Yukon Denali

This is from the A/C Module located under the dash passenger side, check wether the internal fan is working if it is, then change the Module which is a small black part with two white metal blades like... and your A/C should work again...

Aymen

Posted on Mar 21, 2009

  • 7353 Answers

SOURCE: 2006 Yukon Denali, oil pressure gauge malfunction

Most likely the oil pressure sensor is bad. Its located in the very rear of engine on top of bell housing area.

Posted on Oct 30, 2009

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