Anemic Audi!

[colectb]

My Audi 5000 Turbo Diesel just recently became Anemic. I don't have time to start working on it until the weekend, so I thought I would like to get some suggestions to see where to start. Its most likely a breathing ( intake or exhaust) issue.

Here are the symptoms:
-It will NOT go above 3000 rpm and therefore will not pass 65 mph (~100 kph)
-I don't get my rather annoying black cloud anymore while flooring it, and I get about 1 psi less boost at full throttle.
-It idles and runs in lower rpms perfectly.

So it could be a plugged muffler, although I see exhaust smoke, just not soot. It could be something to do with the intake, or it could even be a fuel problem. Any suggestions?

Thanks in advance!

[veedubcanuck]

Sounds like a fueling issue over a restriction in the intake or exhaust. Maybe your pressure line to your LDA came off or there is something wrong with the pump... Did your floor mat slip under your throttle pedal? lol

[burn_your_money]

Restricted fuel supply is my guess. Most likely suspect would be the fuel filter.

[Rabbit on Roids]

im going with the clogged fuel filter too. my 5000 ran 100x better when i put a new filter on it. i fought fuel problems for days with it, then changed the fuel filter and it ran like a champ.

[colectb]

Ok cool, I was going to replace it anyways and a new one is in the mail, but it seems kind of strange because I changed the filter a couple months ago. I must have a lot of crud in my fuel tank.

[jtanguay]

Ok cool, I was going to replace it anyways and a new one is in the mail, but it seems kind of strange because I changed the filter a couple months ago. I must have a lot of crud in my fuel tank.

its not a bad idea to buy a cheap vacuum gauge and install it from the filter to the pump.

[TPW]

Cole, there is another fuel screen inside the fuel tank.  I replaced that filter about 10 years ago, and there have been a lot of miles put on that car since then.  Lift up the lower part of the back seat to expose the access for the fuel gauge sending unit.  Hopefully the tank is half empty or removing the cover will let fuel flow into the passenger compartment.  I don't know how to describe the process for removing the screen (check the Bentley) but it is a plastic piece shaped like a shot glass under the sending unit.  Be sure to replace it with another coarse screen, as the gas 5000's have a finer mesh screen that will clog up with wax when the fuel gets cold.

[colectb]

Thanks Tom! I would have never thought of that nor known of that. Where did you get the replacement one at?

[colectb]

Also Tom, you wouldn't happen to have any 5000 gasser intercooler piping lying around that I could buy from you, would you?

[TPW]

No extra intercooling pipe.  On that car I just used straight pipe and radiator hose for the bends.  The Filter Screen I got at the dealership.  The closest ones for you are in Fargo, or Maplewood.

[Rabbit on Roids]

Also Tom, you wouldn't happen to have any 5000 gasser intercooler piping lying around that I could buy from you, would you?

josh (Powered by Spearco) has some 5000 piping and an intercooler i think, he might still want to get rid of it.

[colectb]

I have the Gasser intercooler already, I just need to pull the turbo off of the car to see if I can rotate it to the position its in on the gas cars. If I can it should be pretty straight-forward to hook up the stock piping, so maybe I'll see if he will want to part with just the piping. And there is an Audi dealer in Sioux Falls, I'll give them a call. 

[TPW]

You don't have to pull the turbo off to rotate it.  Just loosen the four 10mm bolts on the front and the discharge will move.  The only thing you have to watch is the connection to the wastegate control.  You don't want that to kink.

[Rabbit on Roids]

his audi has a K24 on it. it doesnt have any wastegate control to kink. and it has 7 bolts holding the cold side on. i had to pull mine apart to get it to rotate, you might not have to.

[TPW]

I used to own that car, I know what the turbo looks like.