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Old 11-27-2012, 09:52 PM   #6
Mango
e46mango.com
 
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Join Date: Mar 2006
Location: Southern California
Posts: 25,490
My Ride: 2016 Lexus
Replace the pulleys every 50,000 miles or whenever they make noise. Whichever comes first.

no need to check or test anything.
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