2008 Dodge Ram Touble code P0456

DRROBERTSON

MEMBER
2008 DODGE RAM
V8
2WD
MANUAL
800 MILES

What is the next step when you get trouble code "P0456 EVAP Emission Control System Leak very small"? Is that a loose gas cap issue, or is something else wrong?

Sunday, August 10th, 2008 AT 11:02 PM

2 Replies

RASMATAZ

MECHANIC
75,992 POSTS

You can try a new gas cap or tighten the cap properly then disconnect the battery for 10 minutes and see what happens to the light

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Monday, August 11th, 2008 AT 2:09 AM

SANDMAN799

MEMBER
5 POSTS

Hey, I have a similar problem with my 2002 Ram Quad Cab 4x4 except I get the P0455 code which says evap fuel system gross leak detected and it switches between small leak and gross leak, and I am still trying to get the evap system diagram so I know where to look for possible leaks, as a precaution I replaced the fuel cap which was new less than a year or so ago. But it wasnt very good. So I bought a new one and cleared the trouble codes with my scanner and it was a couple days before the code came up again. Anyway if you figure it out can youo let me know what you did and where to look for a likely problem?

Thanks
Bill

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Wednesday, September 10th, 2008 AT 3:27 PM