bump. I'm seeing the same issue (stalling and sputtering after a fill-up). No solution yet? This seems to affect almost every FiST. My car almost stalled in traffic today. May be grounds for a TSB/recall.
You know, it's funny. I had this happen 20 minutes after signing papers when I bought the car brand spanking new. The salesman and I drove to the nearest Shell, filled it with 93. Started it back up to get on my merry way, and the thing stalled out! Wait a minute, I just bought this car and it's already giving out? But I soon found it was just a fill-up issue.
While the instructions say to leave the nozzle in the filler tube for 5-10 seconds, I have found in my experience that is never enough. I have timed it out at 0,5,10,20,30,45,1 minute. I consistently have to leave the nozzle in place at least 1 minute to avoid this issue. It's a small price to pay, but it has been working for me over the last 6 months/5000 miles. It would be really nice if Ford would realize their 5-10 second recommendation does not work for all of us.