[s-cars] fffff-t-t-t-t

[bob.rossato at att.net]

That's the sign of a torn diaphragm in the BPV and as a result the valve isn't
opening as it should when you lift off the throttle.

Bob


> All this talk about bypass valves reminds me of a question I've been wanting
> to ask:
>
> Is the "fffff-t-t-t-t" sound that I get when lifting off the throttle to
> upshift normal or is this the sign of bad BPV?  It is most noticable under
> moderate acceleration (i.e. light boost.)
>
> Varon
> '95 S6
>
>
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