Question about 2000 Jeep Grand Cherokee
It means you aren't tightening the gas cap down tight, or the vent in the gas cap isn't sealing. Open the gas cap, and look at the center. Take a punch and jiggle the center, which is a valve. This will usually re-seat the valve... or replace the cap. Every so often the computer will pump air into the fuel tank to determine if there's a poor seal in the air space above fuel. If it doesn't find pressure holding, then the error code is logged.
Posted on Aug 08, 2008
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Posted on Jan 02, 2017
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