Re: C'mon, man-help!

[Ewan Hopkins <Ewan.Hopkins@computeraid.co.uk>]

If the fuel supply system is anything like the VW setup, you might have
a lifter pump in the tank as well as an external pump.  If this isn't
working it puts extra strain on the main pump, increasing the buzzing.
Also, there will be a filter on the lifter (with or without pump) in the
tank.  If it is clogged-up you'll have the same problems.  Either way,
the end result is usually a screwed pump if left too long.

It might also be worth trying a direct supply from the battery to the
pump just to see if it sounds any healthier.  If that makes any
difference it's probably burnt/bad contacts in the pump relay or the
wiring to the pump itself.

HTH,

Ewan Hopkins.

- -----Original Message-----
From:	Richard Haroutunian <Richard_Haroutunian@inso.com>
To:	A24k4x4@aol.com <A24k4x4@aol.com>
Cc:	quattro@coimbra.ans.net <quattro@coimbra.ans.net>
Date:	Tuesday, March 09, 1999 9:45 AM
Subject:	Re: C'mon, man-help!


>
>
>Well..  I went through a phase where I was using the cheaper Bosch
>Platinums.  They were horrible.  I had hard-starting problems right
away.
>So I consulted the list and was told to avoid those like the plague.
>
>Then, I switched to the regular Bosch 'Silver's-stock.  Things have
been
>fine ever since.. BUT, recently, this new problem began rearing it's
ugly
>head:
>
>   hesitation at higher (3K+) RPMs
>
>   loss of power at highway speeds-downshifting doesn't help
>
>   hard-starting in the morning (real hard lately)
>
>   generally feels like it's not getting enough fuel - it skips when
the
>   pedal is nearly floored.
>
>BUT-the car runs and idles FINE.
>
>I experienced similar problems with my other quattro last year (4KSQ)
--
>and it was the fuel pump.  It finally choked in the middle of traffic
in
>Boston.
>
>The buzzing of the fuel pump seems to fluctuate when I turn things on
(e.g.
>defrost, heated seats, etc.) -- and it does appears to be getting
louder.
>Someone else on the list suggested it may be hoses going in our out of
the
>turbo-but the turbo registers 1.3-1.4 like clockwork-and it doesn't
>feel like a lack of boost..
>
>It feels like fuel starvation.  Help if you can-Thanks!
>
>Richard
>5KCSTQ
>4KSQ
>VW Cabriolet
>