Mechanics

AIR VENT

1999 Oldsmobile Bravada

Noises problem
1999 Oldsmobile Bravada 6 cyl All Wheel Drive Automatic 132, 00 miles

When I start my bravada I can hear my air vent opening and closing by itself or if I turn on my air conditioner the air changes from hot to cold about every 5-10 sec. Is there a relay switch that control the vents or is it the heater control valve
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Pacman9999
March 5, 2008.



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