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2004 Saab 9-5 Question: What is source of gasoline smell outside car, only with engine off 2-3 hrs.?

 

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06wendy, Rockville, MD, June 21, 2013, 10:02
 Rookie

the smell is intermittent and sometimes after non-use overnight;
no codes on it and nothing showed up on system pressure test;
sometimes no smell for weeks then starts again; gas cap ok; worse in hot weather; full or low gas tank no difference

bad exhaust/catalytic converter?

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