1993 Audi 100 S.
2.8L V6, Automatic, FWD.
Last weekend my Audi decided not to start then after 15-20 min it started then after that it hasn't started since. I've researched what it could be and signs point to faulty fuel pump/relay. Fuel filter is good and no fuel is getting to filter at all. I read that relay is located on far right side, under driver dash. It does click on when ignition is turned on for a few secs. To be sure, I manually engaged relay with cover off and still no start.
Now my question is what is the difficulty level of changing the pump on this vehicle? The tank does have to be dropped for this correct? Thanks for any advice!!
Before I bought a pump, I'd use a multimeter to make sure it's getting power. Have someone turn the key while you read the +/- leads. It should get 12V for a second when the ignition is turned on and while it's cranking, then nothing otherwise. If you're not getting power your pump may be fine.