Originally Posted by
JayDog747
Wow! Holy shit, I did a quick search and found numerous threads that date back to at least 2010 that it is more than likely your evap canister.
Yup, this right here. If you "top off" (overfill) the tank frequently it will back up into the canister and clog up the charcoal filter, which will prevent the tank from venting while you're filling up. I think that there is an actual factory part number for a hose to just delete the canister all together. Or you can take it apart and try to clean it, which seems like a royal PITA.
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