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P0440 check engine code!

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Old 10-19-2012, 04:47 PM
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Default P0440 check engine code!
My first cel on this truck and I'm not sure how to fix it? People say tighten the gas cap so I did, then I reset it, seems good for a couple days and then it's back...
 
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Old 10-19-2012, 06:22 PM
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Check for cracked hoses, especially at the evap canister.
 
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Old 10-19-2012, 07:16 PM
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What year is your truck?
 
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Old 10-19-2012, 09:21 PM
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2003 club cab 4.7 4x4
 
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Old 10-19-2012, 10:37 PM
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Did you check filler neck? Being metal could get a pin hole.
 
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