climate control

1997 BUICK PARK AVENUE
170,000 MILES • 6 CYL • 2WD • AUTOMATIC
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BHMJONES
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  • 2 POSTS
I recently lost all control on the passenger side climate control.... now it randomly switches from heat to cold on its own. What do I check first? 1997 Buick Park Ave Ultra.
Jan 27, 2011 at 12:28 PM
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WRENCHTECH
  • CAR REPAIR CONTRIBUTOR
  • 20,761 POSTS
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.
Jan 27, 2011 at 1:12 PM
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BHMJONES
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  • 2 POSTS
fair enough, but what do I check first to determine all this?
Jan 27, 2011 at 8:06 PM
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