Question about 1990 Volkswagen Cabriolet

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1990 VW Cabriolet Gas Smell and humming from gas cap...The smell and sound happens more frequently on warm/hot days. Gas cap seal has been replaced, but still having problems.

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I agree with the other solution. I have the exact car with the same problem. My mechanic replaced my fuel pump and it solved the problem.

Posted on Oct 04, 2009

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The humming noise is coming from the fuel pump.  Its possible its getting ready to fail.  These start making noise when they are going bad.  The smell can be coming from bad gas cap not sealing up fuel tank properly and or a fuel pump/sending unit seal.  You can pull the back seat bottom out easy enough by removing 2 5mm alan screws that secure it to the floor.  Remove the seat bottom buy pulling out and remove black cover under seat bottom that has 3 philips screws.  you may smell fuel more promanently here.

Posted on May 29, 2009

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