What causes a loud high pitch sound when the air conditioner is turn on on 2006 Acura TL

At start up, and through out the speed range

by in Colchester, CT on July 30, 2011
1 answer
ANSWER by on July 30, 2011
Have it checked out, could be a loose fan belt, a bad compressor clutch or an exhaust heat shield that resonated when the engine is under increased load of air conditioning load.

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