2008 Dodge Ram Touble code P0456

2008 DODGE RAM
800 MILES • V8 • 2WD • MANUAL
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DRROBERTSON
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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?
Aug 10, 2008 at 11:02 PM
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RASMATAZ
  • ✓ASE Certified Mechanic
  • 75,992 POSTS
  • ASE Certified Mechanic
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
Aug 11, 2008 at 2:09 AM
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SANDMAN799
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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
Sep 10, 2008 at 3:27 PM
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