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      07-30-2014, 02:43 AM   #11
SomeRandomer123
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Drives: F30 328i Luxury - Sport Auto
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Quote:
Originally Posted by Labeef View Post
Sounds like a bearing going bad on an idler pulley, alternator, or tensioner.
A bearing going bad is what it sounds like best to me...
Alternator was favourite in my mind but the alternator doesn't run all the time...
That said, even though it may not be returning charge, part of it is always being belt driven so perhaps the initial bearing to alternator is going.
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