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Old 08-12-2009, 08:53 AM
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Join Date: Aug 2009
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Default 01 Tahoe rear a/c only blows warm air

Thanks to all thoes who helped me with my first problem.
Fixed the front ac cools very nice 38-46 degrees
now i have to fix my rear ac it only blows warm air on ac or heat, blower works on all speeds.
What could cause my ac not to work. It's an 01 Tahoe LT with 2 hvac controls in the roof.

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Old 08-12-2009, 08:40 PM
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Join Date: Apr 2006
Location: KC, MO area
Posts: 9,045

If you can get to it, check the low pressure line near the rear evaporator to see if it's cold. If it is then I'd suspect a blend door problem.
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