Mechanics

HEAT

2005 Buick Terraza • 6 cylinder 2WD Automatic • 107,000 miles

I have a 2005 buick terraza. This has happened twice over a month. Both heat controls are on hot. The drivers side is cold and the passenger is hot. How do I fix?
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Paulvoitek
February 10, 2011.




The temperature is controlled by the use of an air mix door that is operated by an electric motor/actuator. This door can be jammed or the actuator can be inoperative or have stripped plastic gears internally.

Wrenchtech
Feb 10, 2011.


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