Ooooh, so that's what they mean when they say "you've got a clunker"...just kidding
. You may want to open your gas cap after shutting your engine off, to see if it sucks or blows air. Open the cap slowly though, because if it blows gas, you'll get a face full of it. I'm not sure if these trucks have vented caps or not. If it does, maybe yours isn't working correctly. Good Luck
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