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Old 11-01-2010, 05:45 PM
RootBeer RootBeer is offline
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There is a door inside the blower box under/behind the dash that is usually controlled by a vacuum operated solenoid.

Your problems could be at the solenoid, the vacuum line, or the door itself. Could even be the linkage connecting the solenoid to the door.

The switch making noise is not good, but you need to pull the housing with the switch in it off to see what's wrong there.

Either way, if you do not have the skills to dig into the dash and blower, I highly recommend taking it to a professional.
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