what constitute an evap.leak,and where to find this leak?
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2002 Chevrolet Blazer
Question: evaporation leak
Answer #1dandd May 13, 2010, 19:34Master
This is a pretty large subject. Here is an article I wrote about for 1 of the more common Evaporative System Codes and there are several. You could start with a new gas cap from the dealer, as Chevy gas caps tend to leak after awhile.