CMAC79

Overfilling the vehicle does not effect the vent valve, it saturates the canister. It will not happen the first time it is done, hundreds of overfills is usually what does it. As a general rule don't overfill but again it didn't do the valve in. Hey your awesome thanks for the quick answer. So i guess the canister will dry out as long as I stop filling it up to much. I haven't filled it up since I replaced the part, tanks still full.

I just replaced the EVAP vent valve with the "New and improved " ACdelco part # 214-2082 which relocates the filter box. It wasn't to hard a job. My question is does this fix the problem when the tank is filled up to the top? I can't imagine not being able to fill the tank all the way up. Does any one elase think this is a problem and does any one else no if there is a way to stop the problem other than not being able to fill it all the way up.