kyfredrickson
07-12-2010, 05:46 PM
Ok first off, thank you checking my post to help me out, Im a total newbie. I have a 2005 grand cherokee 4.7L 80k Miles. My check gas cap light is on.
I went to o'reilly to use their code reader 2 possible errors came up.DTC PO456 and PO457, with the check gas cap light on. I know their is a service bulletin about this but im lost. I bought a new gas cap last week and cleared the code, but it still read check gas cap so i unplugged battery and that solved that problem, but 2 days later it came back on.
I just got back from o'reilly again where they gave me a free gas cap again to try it because they insist that must be the problem.
Any thoughts? Iv searched the forums and found some but nothing to helpful. Thanks guys!
I went to o'reilly to use their code reader 2 possible errors came up.DTC PO456 and PO457, with the check gas cap light on. I know their is a service bulletin about this but im lost. I bought a new gas cap last week and cleared the code, but it still read check gas cap so i unplugged battery and that solved that problem, but 2 days later it came back on.
I just got back from o'reilly again where they gave me a free gas cap again to try it because they insist that must be the problem.
Any thoughts? Iv searched the forums and found some but nothing to helpful. Thanks guys!