Question about 1999 Jeep Grand Cherokee

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Took it to part store put machine on it told me the number p0455 came up said it had to do with muffler had a leak please help

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Nothing at all to do with the muffer

PO455 EVAP Control System Leak Detected
(No Purge Flow or Large Leak)

Now you see the value to the parts store code thing

You will need a repair shop, that has an EVAP
Smoke Machine and Scanner, to find and repair
the EVAP System (Evaporative Emissions)

Posted on Mar 18, 2011

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