If your car will not start but will crank over then this will tell you
where the problem is. An engine needs 3 things to run. Fuel, air, and
spark. The way to tell if it is a fuel problem is to take starting
fluid and spray in the air cleaner. And if it starts, then it is a fuel
problem. Usually a fuel pump, fuel pump relay, or the fuel filter. If
it does not start. Then the next thing to check is spark. If you have
no spark then it could be several different things. But then you will
at least know it is something to do with the electrical system. There
are some cases where the timing belt jumps a tooth and makes the timing
off where you will get spark and the car still won't start. Usually in
this case the car will start, but backfire and run terrible. If you
have fuel and spark then it could be the air filter dirty, mass air
flow sensor, or something to do with air. I hope that this helps!
has the engine skipped or been sluggish recently? the ignition coils are a common problem on the ford V8. could also be a crank position sensor. check for any codes in the ecm and as always, an engine basically needs 3 things to run, air, fuel, and spark. keep in mind that even though your fuel gauge is telling you the tank is full, the pump may be dead, or it could be a bad fuse. so you need to check for fuel pressure at the fuel rail to be sure.