If you've upgraded your tank fuel lines, read this
 

Because I need your stock ones:D

I replaced my pump a few weeks back, and when I did, it looked as though there was a few drops coming from right behind the connector on the supply line. I just thought it was fuel that had dripped around when i removed the line. But when i went out and drove it, i got back and saw that the back of the tank was damp from fuel leaking from the top.

Since I've gone through a few tanks since then, I've noticed that it doesnt do it when its less than about 3/4 of a tank. And I can smell it with the windows down when I floor it. So I'm guessing that when I go WOT, it see's alot more pressure and causes it to leak. But I dont know why it doesnt do it when the tank isn't very full.

I checked with Ford, and they said that the supply line (to the fuel filter) and return line (also connects somewhere up around the filter) are a single unit, and costs like $60.

I'm just checkin with you guys first to see if anyone has their stock lines laying around and would wanna sell them at a used rate:)
If you do, shoot me a PM or an email at : my email

thanks

I know my tank leaked at the o-ring seal that seals the pump housing, make sure thats not it, cuz mine only leaked when it was 3/4 full or more, but you said at wot you smell it, so i dunno. good luck.

hmm, interesting point.

also at WOT, the car is accelerating forward, so the fuel will be forced to the rear of the tank and upward, thus causing the leak if that o-ring is not sealing. I'll definately have to check that.