Replacing Fuel pump and frozen check valve....

[Huw Powell]

IIRC, the 90Q is similar:

http://www.humanspeakers.com/audi/fueltray-90.htm

The red and blue electrical connector things unscrew, as I recall.

You might find the job easier if you remove more than just the pump - 
disconnect tank to pump hose, disconnect filter outlet, remove entire 
tray to work on bench.

You should be able to disconnect the FP wires under the back seat if you 
can't get them of under the car.

You'll probably need a handful of those rubber bushing/stud things that 
mount the tray and the pump.

By the way, that's almost $400 in new parts in the photo.

MXHOWES at aol.com wrote:
> Well, the fuel pump finally quit on my trusty '85 4000Q. I have a good  
> working spare pump off a parts car and started in on the job only to find the  
> check valve frozen to the banjo bolt on both pumps. It looks like I can get 
> the  bad pump off by destroying the electrical connectors on the pump body 
> (unless  they are removable .....I doubt it) but getting hold of the little,  
> tiny, skinny crammed between the two electrical connectors check valve nut 
> looks  almost impossible. (another example of superb German engineering). 
> Looks like I  might have to fabricate (grind down) some sort of wrench to get 
> on the nut  ....needle nose miniature vice grips maybe.........  So last  
> night I soaked everything with PB Blaster and went to have a beer in the hope  
> that there might be a BTDT easier way to accomplish the task, if it can 
> even be  done.
>  
> Thanks,
> Jim
>  
> '98 A4 Avant  Q
> '85 4KQ ..
> 
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-- 
Huw Powell

http://www.humanspeakers.com/audi

http://www.humanthoughts.org/