[s-cars] Fluttering Sound from Turbo?

[Mark Strangways]

They do tear easy...
I think mine went at 30 PSIG

Mark
----- Original Message ----- 
From: "chris chambers" <fastscirocco_2000 at yahoo.com>
To: "David Greaves" <da5150_2000 at yahoo.com>; "Scar" 
<s-car-list at audifans.com>
Sent: Tuesday, August 09, 2005 10:56 PM
Subject: Re: [s-cars] Fluttering Sound from Turbo?


> Its not a part of the turbo, its a plastic valve that hooks to both the
> turbo outlet and the side of the MAF to Turbo hose.
>
> It looks like this:
> http://www.sjmautotechnik.com/trouble_shooting/ecupic/bypass.jpg
>
> You can read more about it here:
> http://www.sjmautotechnik.com/trouble_shooting/20vboost.html#boosthose
>
> Mine was hooked up backwards and made that noise, but I also replaced
> it with new so the diaphragm could be bad.
>
>
> HTH
> Chris
>
>
>
> --- David Greaves <da5150_2000 at yahoo.com> wrote:
>
>>
>> Thanks. How do I check it? I have never opened up the
>> turbo on this thing before.....
>> --- chris chambers <fastscirocco_2000 at yahoo.com>
>> wrote:
>>
>> > Sounds like either the Blow off valve to me.
>> >
>> > Check and make sure it's not in backwards
>> >
>> >
>> > --- David Greaves <da5150_2000 at yahoo.com> wrote:
>> >
>> > >
>> > >
>> > > Would love to get some advice regarding a sound I
>> > am
>> > > hearing (I think anyway) from the turbo on my 94
>> > S4.
>> > >
>> > > When ever I run the rpms up to say, 4 or 5
>> > thousand
>> > > under at least moderate throttle, when I back off
>> > to
>> > > shift to next gear, the turbo seems to be making a
>> > > fluttering sound as it comes down in rpms in
>> > between
>> > > the shift.  It does not seem to have lost any
>> > power,
>> > > however, the sound makes me wonder if I have a
>> > > precursor to later problems.............
>> > >
>> > > Thanks!
>> > >
>> > >
>> > >
>> > >
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