Well if any of you remembers, I used a antenna stainless steel element - instead of the 1/4" nylon tubing to loosen the flapper. Well I turns out as summer heated up, i guess I didn't break it out.
Anyhow instead of getting the TSB applied I'd unstick the flapper with this 56" piece of nylon tubing. It works> I did this because several years ago the dealer said the tank had to be dropped and his de-fueling tank wasn't working and they had trouble with cracking the plastic tanks. Also none or very few tanks were available in Ford's parts network. Never had time to re-schedule or was affaid of more problems than what I had!
So it does have to be due with the flapper sticking, I only have this problem when it's in the 90's or when the inside tank pressure is higher than normal ( what ever that might be), I'm guessing the pressure is pushing the flapper tighter into it's seat????
Paul
