Thread: Rough Noise Coming From Red Boost Hose Area
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      12-04-2018, 09:54 PM   #5
Pep423
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Drives: 2011 335d M-Sport
Join Date: Dec 2015
Location: Chi Burbs

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Quote:
Originally Posted by Owen81 View Post
They ran the engine with no crank pulley?
Have you replaced your belt tensioner?
Yeah, that's what they said, ran it without the pulley and noise is not present.

The tensioner has not been replaced.
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