Thread: Engine whine
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      08-23-2019, 07:36 AM   #4
renizer
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Drives: '10 E91 335xi N55 MT6
Join Date: Apr 2018
Location: Austria

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Quote:
Originally Posted by Lax1085 View Post
struggled with a similar noise, it went completely away after changing valve cover. Due to bad PCV that's part of the Valve Cover. I could only hear the sound at idle, after it warmed up.
that's an interesting one! did you get any audio or video clips of that before changing maybe?
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