Question about 2004 Chevrolet Silverado

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A/C only blows through defrost vents. Won't switch to floor Or foot vents . Have tried a 2nd control unit in dash

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It sounds like the blend door actuator which diverts air from defrost to vent to the floor.
The bad news is it's a bear to get at. It's located behind the glove box.

Posted on Sep 05, 2009

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