Thread: Engine noise
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      10-15-2017, 02:23 PM   #4
arkow
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Drives: 2012 X3 35i, 2019 M2 Comp
Join Date: Sep 2015
Location: US

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It doesn't happen all the time so it's hard to troubleshoot but I was able to get s video of it when it happened. I was thinking to replace the belt, tensioner and pulley to see if that fixes it. I turned AC off but that doesn't change anything. I was told by someone that it could be valve cover, never heard that before..
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