Truck Won't Start on 2000 Ford Expedition

At first, it would turn over and die, turn over and die. Then, eventually it would start. After driving about 1 mile, it would just die in traffic. The next time I drove it, same thing, turn over and die. The check engine light came on, and now it won't start.

1 answer
Ford fuel pumps are notorious for failing on this model, but typically, they fail in a way that is a crank no start- they usually do not cause it to stall while driving. A failed crankshaft position sensor could cause your issue, but without knowing what diagnostic trouble codes that are in the PCM, it is impossible to advise.