Not running below half a tank of gas?

Tiny
KELLI PAGAR
  • MEMBER
  • 1994 AUDI A8
  • 4.2L
  • 4WD
  • AUTOMATIC
  • 420,000 MILES
I've been having issues with my vehicle listed above (220kw) not running below half a tank of gas.
Monday, August 8th, 2022 AT 6:20 AM

1 Reply

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,526 POSTS
They didn't make an R8 in 1994, so I assume you mean R8? Anyway, if it does run with a 1/2 tank of fuel it means the fuel pump is getting weak or the fuel filter is clogged. Here is the location of the filter and I have left instructions on how to change the fuel pump out in the images below. Check out the diagrams (below). Please let us know if you need anything else to get the problem fixed.
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Monday, August 8th, 2022 AT 5:02 PM

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