Question about 2001 Chevrolet Suburban

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Cold air entering under dash at all times

This vehicle does not dual heat controls in front

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If equipted with a/c, you have a hose off the a/c control behind the dash panel or off the outside air plenum. Turn off the radio and fan, lay under dash and listen for air leak.

Posted on Nov 27, 2013

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Posted on Jan 02, 2017

emissionwiz
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SOURCE: 1999 temperature control will not regulate heat/air

This is likely caused by a failed or jammed electric air temerature control blend door actuator and or a warped and jammed blend door.

Posted on May 18, 2012

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