Question about 2000 Chevrolet Lumina

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Vacuum leak to AC controls 2000 Chevy Lumina

2000 Chevy Lumina Air conditioning
On acceleration the AC blows air to floor,,,feet.
With foot off gas AC blows air on your face.
I can hear the air doors moving when when speeding up and slowing down.

Where do I look for the leak or whatever?
Thanks,
Tom

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Check the vacuum lines, starting at the firewall in front of the passenger side and trace backward.

Posted on Jun 19, 2009

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I found a broken vacume line under the battery that runs under the front right side fender.

Posted on Jul 13, 2012

  • Lisa Browning
    Lisa Browning Aug 08, 2016

    i have a 2001 and for some reason the idle is running high along with the problem with the air conditioner. will a vacuum leak cause that also?

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If leak not found under hood may be leaking under dash. check very carefully under hood first. Beware MOVING PARTS!

Posted on Mar 21, 2012

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I have the same prob with my 96..
Haven't solved it but did find a back
check valve in the area below and just infront of the brake booster.. Did help.

Posted on Oct 28, 2010

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Posted on Jan 02, 2017

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