Havc selector not working


Asked by Jun 15, 2016 at 05:22 PM about the 2005 Pontiac Grand Am SE

Question type: Car Customization

I have changed my climate controls twice, but my
for some reason I get air from all vents instead of
which ever setting I have selected has anyone else
had this problem and or know how to fix it. Also I
have been reserching to see where the hvac gets
its vacuum from an have had no luck.

1 Answer


I don't know your car well enough but other Pontiac climate controls have a plastic valve that rotates when the position selector is moved. The default position is "all" when it is broken. The vacuum lines run to this valve and it directs which outlets the air is sent to. Look on the rear side of your climate control unit for this valve. If you think this is your problem, answer this post and I'll tell you a cheap, quick, and reliable fix for it.

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