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Code P0456
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CarGuru > Dodge > Code P0456 3 April 2005 11:45:35

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Code P0456

JohnC 2 April 2005 22:18:30
 Code P 0456 is described as "Leak has been dectected in the evaporative
system." The gas cap has been removed and reinstalled seventeen times or
more over a three thousand mile period without the check engine light and
code P0456 clearing.

Is there a way to prove the gas filler cap is at fault without replacing the
it?

JohnC
2002 Dakota, 3.9, auto, quad and if Mr. Red Neck still reads this ng the
color of the truck is Pat. Blue


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Miles 3 April 2005 00:05:34 permanent link ]
 JohnC wrote:> Code P 0456 is described as "Leak has been dectected in the evaporative > system." The gas cap has been removed and reinstalled seventeen times or > more over a three thousand mile period without the check engine light and > code P0456 clearing.>
Is there a way to prove the gas filler cap is at fault without replacing the > it?>
JohnC> 2002 Dakota, 3.9, auto, quad and if Mr. Red Neck still reads this ng the > color of the truck is Pat. Blue

Yes but a new cap would be cheaper than having a shop test it. If the
cap isn't the problem then you have a leaking hose somewhere. Check all
hoses from the tank to the charcoal canister and from there to the
engine compartment. On top of the canister is a plastic hose manifold.
That could be cracked too.
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SeaCowboy 3 April 2005 11:45:35 permanent link ]
 I agree with miles. Change the gas cap. and to clear the check engine
light, unhook the battery for for 'bout a minute. If it comes back after
that then there is definitely a leak in your lines somewhere. Maybe
replace the lines just so you know that there isn't any leaks. Good luck
with that.

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CarGuru > Dodge > Code P0456 3 April 2005 11:45:35

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