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Old 11-15-2012, 10:21 PM   #5
$ilent ///M
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Join Date: Jan 2010
Location: So.Cal
Posts: 259
My Ride: 03.5 M3 smg lsb
Mine was the pulley. theres two which normally go out the one by the alternator and one by a/c. you can put a long screwdriver close to it when cold and listen thru the screwdriver. r
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