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#2
05-02-2007, 11:32 PM
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Re: Trouble Code
How Did You find your code? & Whats the procedure?.
Sincerely Fustrated 2004 durango owner. 
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#3
05-03-2007, 12:31 AM
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Re: Trouble Code
I didn't get it. It's my neighbors truck. I had him go to Advance Auto and borrow their scanner. He left his gas cap loose a couple days ago and the check engine light came on.
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#4
05-21-2007, 08:05 PM
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Re: Trouble Code
Straight answer. Yes, the fuel cap will pull a P0456 code. It is showing that there is a leak in the EVAP system.Almost any vehicle from 1996, and up with the OBDII system will show a code with the fuel cap loose, or missing.
Mike
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#5
05-23-2007, 08:41 PM
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Re: Trouble Code
yeah P0456 is a small leak detected in the emmision system, no big deal, fuel cap could cause it, depending on the year of the durango, if it's a 4.7L also check around the purge solenoid and the rubber hose coming from the intake plenum, they have a tendancy to crack when they get a little older...i know, i fix them all day long !!lol...there is also a small "elbow" under the truck (about right under the drivers seat) at the leak detection pump tha is common to crack causing the code
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