I have a 99 Ford Expedition Eddie Bauer 5.4 motor I was driving it and it just died on me and I haven't been able to get it started back up and there's no fuel getting to the motor I have replaced the fuel pump the fuel filter check the fuel regulator and the wires and I'm stumped I don't know what else it could be can anybody help me

 

When you first turn the key on before turning it to the start position you should hear the fuel pump run for approx 2 seconds. Do you hear that? Also, good idea to check the inertia switch and then all the fuses. Inertia switch info is in owner's manual.

 

I have checked all fuses I'm thinking it's a bad pump I have to pull the gas tank to get it out and replace it again

 

Because of all the work involved in replacing a fuel pump, before taking on that job again, why not make sure the pump is defective before pulling it apart.
It is entirely possible the pump could be defective, but a good move would be to confirm power is getting to the pump and it has a good ground connection. It is a little bit of work , but not as much as pulling the tank down, especially if you wind up replacing a good pump.