Was the fuel cap replaced?
Was the vehicle running while you were fuelking up at any point?
Ok. I just found a Technical Service Bulleting provided by Dodge on this issue. Can you give me your production date? This can be found on the white tag on the driver's side door jamb.
sorry it took a little while.
There was no production date label on any of the door jams.
the VIN# XXXXX XXXXX
I couldn't find any date info under the hood either.
Ok. Using the VIN#, it does look like this TSB applies to you. The problem has been aknowledged by Dodge and the cause is a faulty Charcoal Canister. The TSB repair calls for the replacement of the canister, filter and fresh air hose. Depending on your warrenty coverage, it may be fully covered.
OK, now I'm just asking here, would that cause a vacuum leak , say an internal leak of the canister that would not let the fuel tank hold vacuum ?
I 'm used to hearing that vapor /vacuum sound when unscrewing the gascap, and I don't anymore . Lending credibility to the fault light.
Absolutely. According to the TSB, the canister is a faulty design, and has loose pieces of charcoal inside. This will cause the entire system to not hold vacuum at all. These TSB's are put out right from the factory, and are pretty reliable. The TSB also says that the Dealer will have to do a "smoke" test to verify the problem, but i'd be willing to bet this TSB is right on the money.
Wow, That sounds pretty good.
Now you mentioned that the TSB mentions replacing the canister.
Does it have a kit part number ?
Also, what other lines does it say to replace.
(I don't think the lines are bad , but just in case)
More than likely, this all comes as a pre-made kit. If they suggest changing it, I would change it, even if it "looks" good.
Sounds like a winner, I'll give it a shot first thing in the AM.
For you quick response !!
You're welcome. Glad I could help. Have a great day!
Just a follow up on the 2007 Dodge ram 1500 wuth the "gascap" fault. P0457/P0456
Thanks for helping with the TSB info on the charcoal canister.
I went to the dealer and picked up the TSB kit, and replaced it, reset the code, and started her up. ....WINNER !!----no fault light or code.
The charcoal canister was where the internal leak was.
Thanks again for the technical assistance !!
This is one for the notebook.
You're welcome. Glad I could help. Chalk another one up for the good guys! Have a great day!