4Kq fueling issues

[Shawn Manny]

thanks gang! I will try to get at the screen first..I think with the
4kq I still need to pull the tank (which is quite easy actaully). The
pump was cheap to replace, I have a hook up at Car Quest, and can now
change them in 5 min. flat..practice makes perfect.I will check the
relay out and buy a replacement (any good vendors or PN's?).
It'd be great if thats all it needs....I dont want to pay to get the
tank cleaned...

Shawn

On Mon, 15 Nov 2004 15:02:31 -0500, Edward R. Wendell IV
<erwendell at mac.com> wrote:
> http://www.sjmautotechnik.com/trouble_shooting/fuelpump.htm#tank
> 
> I've made it a point not to argue with this guy. He's helped way too
> many people way to many times, myself included. Also, note that he
> references an Audi service bulletin. Take it up with them.
> 
> Roy
> 
> 
> On Monday, November 15, 2004, at 02:57 PM, Kneale Brownson wrote:
> 
> > I've been inside 5ktq, 200tq20v and S-4 tanks (at least enough to
> > remove
> > the pumps and their retainers) and never seen any sign of any kind of
> > lining to the tanks.  If there is a lining, it's perfectly clear or
> > it's
> > only located on the very top of the tank.  However, there IS gunk that
> > can
> > form inside the tank.  I have no idea of its origin, but when I
> > replaced my
> > 200q20v's tank this spring, I found some brownish stuff inside the pump
> > retainer basket.  I supposed this came from the interaction of fuels
> > with
> > the rust-through that made the tank leak, which was the reason for
> > replacing it.  Since I had both the pump opening and the filler
> > opening to
> > look through, I examined both the leaking tank and the one replacing it
> > from two viewpoints and did not see any sort of lining material.
> >
> > At 02:20 PM 11/15/2004 -0500, Edward R. Wendell IV wrote:
> >> I don't know if the 4k suffers from the same problem, but on the 5k
> >> there is a coating on the inside of the tank that flakes off and plugs
> >> up the intake screen on the pump. This results in lot of noise from
> >> the
> >> pump and an engine that only runs for about ten minutes at a time if
> >> stationary and even less if moving. The Audi recommended fix is to cut
> >> off the screen and let the junk pass through the pump. It's a lot
> >> easier to replace the fuel filter than open up the tank to get to the
> >> pump. Apparently no amount of cleaning will stop the problem. I had
> >> thought that there was a certain amount of fiction in this scenario
> >> but
> >> I had a textbook case on an 89 200 about a year ago.
> >>
> >> If I recall correctly the 4k pump is external, but I would imagine
> >> that
> >> there is still a screen on the pickup inside. I don't know if the 4k
> >> tank has the same coating inside either.
> >>
> >> _______________________________________________
> >> quattro mailing list
> >> quattro at audifans.com
> >> http://www.audifans.com/mailman/listinfo/quattro
> >
> 
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