Question about 1991 Porsche 944

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We just got a 1988 Porsche and filled with 1/2 tank, there was what seemed like overflow happening - Any idea what may be the problem.

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Only thing I can think of...your fuel sender unit could be faulty and not giving you a correct reading on your gas gauge as you seeing it empty but it actually half full. assuming the tank is already half full and the gas gauge read empty, by thinking you putting only half tank cause it to filled up and over flow the tank. I hope that make sense...next time when you think the tank is empty, open the gas cap off and shake the car side to side and see if you can hear the slouching of the fuel inside the tank.

Posted on Oct 10, 2009

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Fuel tank vent could be blocked by mud/pebbles etc, not letting the gas fumes escape while your adding fuel making it overflow, check underneath the car near the fuel tank .. something to start with..

Posted on Oct 10, 2009

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