Question about Chevrolet Tahoe

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1999 chevy tahoe, my ac blows colder in the rear passenger vents then it does in the front passenger vents. what could cause this problem and how can i fix it? how do i access the front ac vents?

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It could be your vent doors not opening and closing properly or completely. There are vacuum actuated doors that direct air from the heater - or A/C Evaporator(even mixes the two on some) , as well as defrost, vent, floor and so on...

Might want to check for vacuum leaks(broken, hanging, cracked vacuum lines), or see if anything is obstructing the vent doors.

Posted on Sep 02, 2010

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