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Old 09-14-2010, 06:35 PM   #4
renyo
Scooby Newbie
 
Member#: 93577
Join Date: Aug 2005
Chapter/Region: MAIC
Location: Chicagoland
Vehicle:
98 Impreza

Default

Could be the AC idler or AC pulley itself. Both of those were bad on mine. I couldn't hear either by turning the engine by hand, but when the belt was off and I turned the AC pulley, I could hear the grinding/whining noise. Same thing with the tensioner, although it was easier to tell it was bad than the pulley.
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