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What is wrong when the passenger side ac only puts out heat on a buick regal gs?
Wiki User
∙ 16y ago
There is a problem with the blend door for the passenger's climate control. The blend door diverts air through the heater box to the correct system ( ac or heat). It may by a vacuum supply problem ( the climate system uses vacuum to operate the blend doors). It may also be a problem with the control head in the dashboard ( the thing with the knobs for heat/ac). The blend door may also be blocked by debris and can not operate properly ( such as a mouse nest, leaves, acorns, etc ). EDIT: The AC and Heat system DO NOT use a vacume system on the newer Regals (from 1997 on). If your car is this new, they have a known problem with the blend door motor, and can be repaired with a new part from the dealer. The part is fairly pricey thou.
Wiki User
∙ 16y ago
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