Re: 89audi 200 won't run

["Daniel Hussey" <dan_hussey@email.msn.com>]

It was my understanding that the fuel tanks were improved after '88 and that
'89 and on cars were not cursed with this problem.  BTW, I never heard of it
being serious enough to the point where you'd notice a decrease in
performance.  My guess is a bad fuel pump.  See if there is a warranty of
some sort on the pump if it was done recently.  Seem to remember 1 yr on
most Bosch parts or something like that.

Later,
Dan

-----Original Message-----
From: DeWitt Harrison <de@aztek-eng.com>
To: DCash30285@aol.com <DCash30285@aol.com>
Cc: quattro@audifans.com <quattro@audifans.com>
Date: Thursday, June 24, 1999 2:51 PM
Subject: Re: 89audi 200 won't run


>On Thu, 24 Jun 1999 11:15:09 EDT, Roxanne wrote:
>
>>I recently purchase a 89 audi 200.  It ran fine for about 3
>>months and then the trouble started.  A roaring noise started
>>in the rear.  I had the fuel pump replaced.  It ran fine for
>>about 2 weeks then the roaring started again.  While driving,
>>the roaring going on,  all of a sudden it lost power and
>>stoped moving.  The motor then cut off.  I turned the switch
>>and it cranked right up, move a few feet, lost power, engine
>>cut off.  The engine will start but it will not move or
>>contine to run.  I have taken it to the mechanic and he does
>>not know what is wrong.  Please Help.
>
>It is my understanding that the inside of the fuel tank of the
>100/200 cars of this vintage were treated with a protective
>film coating which peels off after a number of years. Pieces of
>this film then block the pump's integral filter screen on the
>underside (inlet) of the pump (which lives in the tank.)
>When the flow of fuel is thus blocked, the pump makes a
>lot of noise and may not be able to move enough fuel to
>operate the engine beyond an idle.
>
>Some folks deal with this by pulling the fuel pump and
>cutting out the inlet screen. I have also seen reports that
>the coating debris that continues to peel is then pumped
>through the lines only to plug the main forward fuel filter
>in turn.
>
>My recommendation: As a start, test the fuel flow after
>the fuel filter by operating the fuel pump. If the flow is less
>than a gusher, pull the pump and filter to check on
>the clogging issue. Checking for a faulty fuel pump relay
>is another avenue of attack if a peeling tank coating is
>ruled out. If it is the tank, I don't know whether the inside
>can be stripped clean or whether a new tank is need.
>
>DeWitt Harrison
>Boulder, CO
>88 5kcstq
>
>
>