2000 hummer ac problem. Help

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Mar 8, 2014 | 01:33 PM

Jzolman

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Joined: Mar 2014

Posts: 3

2000 hummer ac problem. Help

When I have my air on in any position it will not stay blowing out of the vents. It will only blow out the vents when I give it a lot of throttle then it will go to blowing out defroster. Any thoughts. Thanks

Mar 9, 2014 | 06:45 AM

Monka

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Joined: May 2012

Posts: 20

Either your vacuum pump, but more then likely the vacuum line going to engine has a small leak,

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