Re: what's this hissing sound?

["Mark F." <mk1mark@gmail.com>]

On Mon, 7 Mar 2005 09:05:13 -0500, Matt Gregory <vdub.grego@gmail.com> wrote:
> Friday coming home from work I noticed a hissing sound
> that would vary in direct correlation with the gas pedal.  More gas,
> more hiss.  It wasn't related to the engine RPM because going 35-40mph
> in 5th gear I could pretty much make the hiss go up and down with the
> gas pedal without affecting the RPM very much.  And the engine seemed
> to be a little sluggish, so I think it's lost a bit of power. 


A noisy vacuum leak maybe?  When you give it more gas, you are
"loading" the engine - which produces vacuum in the intake system
(N/A).  A vacuum leak could produce both the noise and the loss of
power...

HTH,

Mark.
75
80 S
81 
90 Audi Coupe Quattro - 10vt

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