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Vacuum leak? Easy to find/fix? (archive)

[ Follow Ups ] [ 5-series (E34) Message Board ] [ Msg. Board FAQ ]

Posted by Chris I. on September 30, 2001 at 18:06:45:


I noticed the past week or so that I have a high-pitched whistle or squeal coming from under the hood at almost any engine speed above idle. It seems to be correlated with throttle position. I also hear a hissing sound under hard acceleration that is very different from what I've heard from other induction setups.

I'm wondering about a vacuum leak. Anyone ever replace the vacuum hoses and/or the vacuum pump? I assume there's a vacuum pump. Is it a major PIA or is it do-able?

Chris I.

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