Fuel delivery problems?

[P-lemons]

let me explain my dilemma. I had headed out on a short trip and about two hours into driving my engine sputtered then slowly lost all rpm and left me coasting down I-80. After I had it towed to the next nearest town I noticed that the fuel pump wouldn't fire up when the key was twisted. so I replaced the fuel pump fuel filter and the pump relay just for good measure. Everything fired up and worked fine. so I attempted to drive home and the same thing happened except now I can still hear the pump prime up when the key is in auxiliary.

 

[stutaeng]

Fuel delivery issues are diagnosed with a fuel pressure guage. Otherwise, you (and anyone here) are just guessing...

What truck/engine?

 

[P-lemons]

The truck is a 1997 GMC sierra that has the 454