Problem solved!! Well at least so far. I took the vent hose off the filler neck and put a small hose inside of of it and blew through it and it cleared. Did the same on the metal hose that is part of the filler neck. Drove with the gas cap off until the gas cap light went on (read this on another forum to do) then put cap back on, light went off after a while, drove another 10 miles back to the same gas station I originally had the problem with from the beginning, filled up at the same pump and now all is well!! Thought it was going to end up having to replace the vapor canister but so far so good. Hopefully no more issues but if so the next step would be the canister.
05 EDGE 4X4--K&N CAI filter--4.10`s
04 Mustang GT--Predator tuned--MGW short throw shifter--MAC catted H--Flowmasters--BBK CAI--FRPP 4.10`s--sportline lowering springs--tokico shocks/struts--mm cc plates--steeda uca's