While driving down the highway at 65mph in my 2001 Ford F-150 5.4L engine just shut off. I did not notice an engine light come on. I shifted to neutral and tried to start it with no luck. I pulled over to the side of the road and tried numerous more times with no luck. While on the side of the road I took out the strader valve on the fuel rail and my wife cranked the vehicle over. No fuel came out. I had the truck towed 40 miles back to town and tried to start it again. No luck. We left town and came back three days later. I attempted to start the vehicle again and this time it popped off right away without any problems. I pushed in the same strader valve on the fuel rail and this time fuel surged out. What could be happening here? All the fuses seem to be o.k. Was the engine somehow flooded or did the fuel pump stop working temporarily or what?

Thanks in advance for your help.

Kyle