Tank Assembly problems of the 2011 Ford Fusion

Sudden decrease of power followed by total shut down (similar to being totally out of gas). Gas tank was almost full each time this occurred.

6/14/12 car was low on fuel, but not on empty and message indicated 32 miles to e. Driving up hill car lost power, did not die, moved very slowly. Able to get off street into parking lot of restaurant. Car seemed to regain power, so tried to pull back on street going down hill, but at edge of lot, I realized the brakes were not responding. I managed to avoid car coming and was able get back into the parking lot as pulling into parking spot now slight surge of speed but still no brakes and hit restaurant's sign. Took car to dealer, could not duplicate problem and blamed it all on low fuel. On 6/20 this time with tank almost full. Had same problem, car suddenly had no power, but did not die. I pulled over and turned it off and waited several minutes. When restarted went about four miles and happened again. Stopped, turned off, restarted and went a little further, but now check engine light on. Fortunately, both times not going 60 miles on the highway and suddenly no power had towed to dealer and this time, replaced the throttle body. Said it was an updated version. If they know there is a problem and have an updated version, why is there no recall? I think this could be very dangerous.