Mechanics

AC/HEATER BLOWER

2005 Pontiac Vibe

Air Conditioning problem
2005 Pontiac Vibe 4 cyl Front Wheel Drive Automatic 103, 00 miles

The AC blower fan seldom works, and when it does there is only one speed. Sometimes if I turn on the AC while driving and leave a window cracked, the air suction created will cause the fan to turn on. When the brakes are applied the speed of the fan will slow-down or stop working entirely.

The AC compressor is working and cool air can be felt when the AC switch is engaged.

This seems to be a fairly common problem with various cars, but mine is strange in that it still occasionally works. I suspect a wiring short, loose connection, or cross-wiring but don't know how to approach fixing it. Any advice much appreciated!
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Bob Lawrence
June 2, 2010.



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