Question about 2001 Audi A8

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01 AUDI A8L FUEL PUMP,IT HOLDS 50PSI AS IT SOULD BUT THE PRESSURE DROPS TO 0 VERYQUICKLY WHEN IGNITIONIS TURNED OFF-I THINK IS THE PRESURRE CHECK VALVE, ...? IT STARTS VERY SLOWLY...IT CRANKS FOR FEW TIMES BEFORE IT STARTS, ONCE IS RUNNING IS OK!

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  • hotconnelect Aug 22, 2010

    FIRST OF ALL I WANT TO THANK YOU FOR YOUR PROMPT RESPONSE AND... YES!... YOU ARE RTIGHT ABOUT THAT !
    i'M STILL SEARCHING FOR A NEW PUMP AT A REASONABLE PRICE SINCE EVERYBODY WANTS $750- $800 FOR IT...
    THANKS AGAIN !
    MARK

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The pressure should not drop more than about 5 psi max , u need a new pump, the built in pressure check valve is defective..

Posted on Aug 21, 2010

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