Question about 2004 GMC Envoy

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Dash Vent problem

Did you ever figure out what was wrong with your dash vents? I have the same exact problem.

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  • sarahnicole2 Jul 22, 2008

    i have the exact same problem. all vents except panel vents blow air. we replaced battery and about 3 hours later they quit working and has been this way since oct. 2007. dealership doesnt really know what problem is.


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I got the same problem. I was told it was the AC control module that goes bad and it kills the ability to blow air out the AC dash vents. My Envoy is a piece of junk, electrically speaking.

Posted on Aug 20, 2008

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I replaced the battery in my 04 envoy. I lost the rear defrost, air conditioning, air recycle, and the ability to control the vents. I could control the fan fine. I just disconnected the battery for 1/2 hour, hooked it back up and everything worked fine. I guess reseting the computer solved it.

Posted on Dec 28, 2008

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This is what you should do, I had the same problem on my 2005 Yukon Denali, and got it checked by an A/C Technician to find that the A/C Module which gives the power to the internal fan to blow the air through the dash vents, stopped working and changing this piece solved my problem...

Hope this helped
see ya

Posted on Mar 21, 2009

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