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Message: <blockquote data-quote="83Explorer!" data-source="post: 1053188" data-attributes="member: 78705"><p>My 03 has a check engine light on, it's been on since I bought it. The code is PO442. This truck also has an issue with spewing gas out whenever I try to fill it up. The only way that I have found that it won't spew gas everywhere is if I keep the truck running while I fill it up, I know this is not the most ideal situation. I'm thinking that the issue, for  the gas problem anyway, is the charcoal Evap canister being clogged. Would this cause the PO code? What Evap canister do I need to get, I've seen 2 (a box-like one and cylinder-like one?</p></blockquote><p></p>