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      08-14-2018, 06:05 PM   #3
BurrNinja
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Drives: 2017 540i Bluestone Metallic
Join Date: Jul 2016
Location: Ohio

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Quote:
Originally Posted by NinetyEight740 View Post
That noise is not from your exhaust. When it is making the noise, open the oil cap and see if the noise goes away or if it’s hard to remove.
Will have to try that, it comes and goes only when up to operating temp around 240ish oil temp. Possible breather hose ? or pcv. Also pulled oil cap off during idle, it dropped in idle had crazy suction holding it down.

Last edited by BurrNinja; 08-14-2018 at 06:20 PM..
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