Question about 1997 Geo Tracker 2 Door

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Black stuff on & around fuel cap. What is it?

Black stuff on & around fuel cap, spreading outside fuelcap door. Scrubs off pretty much but grows again. What is it?

Posted by Anonymous on

  • Anonymous Oct 19, 2009

    It is not exhaust. I now belive it to be dried gas & dirt residue that gets blown around inside the lid.



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  • Geo Master
  • 2,007 Answers

I guess it pretty much has to be exhaust. How is your exhaust system? Could it be leaking and rising up into the cap area? Is the pipe secure in the gas compartment? Does it look like rubber or plastic, or soot/ exhaust?

Posted on Oct 18, 2009

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