THE FRONT PANEL VENTS HAVE STOPPED WORKING FOR BOTH A/C & HEAT.

2007 Chevrolet Tahoe

Tiny

Brewster Flats Boy

September, 30, 2011 AT 8:06 PM

Defrost, side window, floor and rear vents all work. What simple things like fuse/filters/vacuum can I check before taking to the dealer? The only event prior to problem was a jump start for a dead battery.

FOUND 1403 RELATED QUESTIONS

5 Answers

Tiny

ASEMaster6371

September, 30, 2011 AT 8:24 PM

Remove the negative battery cable and leave it off for about 5 minutes. Re install it and try it. That re boots the bcm which is what controls those functions along with the hvac module.

Roy

Tiny

cadieman

September, 30, 2011 AT 9:22 PM

This is usually is a vacuum leak or a faulty blend door.

Tiny

Brewster Flats Boy

September, 30, 2011 AT 9:32 PM

Thanks, but I just removed the negative battery cable for 10 minutes, reattached, and the problem still exists. That would have been great if it had worked. Any other suggestions?

Tiny

Brewster Flats Boy

September, 30, 2011 AT 9:53 PM

Any advice other than listen for a vacuum leak? Does the whole front panel need to be removed to get to the Blend door?

Tiny

cadieman

September, 30, 2011 AT 10:50 PM

Test the vacuum with a gauge! Then we will know if its in the door or you have low vacuum causing this.

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