Thread: Whistle after acceleration
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      10-29-2019, 09:36 PM   #4
TonyAb
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Drives: 2013 BMW 535i GT
Join Date: Dec 2017
Location: Reno Nevada

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My car does the same thing. The whistle sound comes on when accelerating and fades away as RPM drops. I was thinking there might be a boost leak somewhere ...
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