My son was driving it and it just died on him. It has started a few time while in the process of changing out the Fuel filter, wires, plugs, crank sensor, distributor cap and rotor...... but for the most part just cranks over.

 

Welcome to the forum.

Which engine?

 

5.2

 

Start w/ verification of the fuel pressure as-measured on the fuel rail.

 

Tap the ECM. Soldering inside breaks over time. If this helps, either take it apart and solder the connections, or replace.

 

I ended up buying a new ECM/PCM and it ran fine for about a week, Fuel pressure reads right at 40, so that's good. but while driving now it just shuts down like it the fuel is being cut off. I wait a second or two and it starts right up?

 

New, as in from dealer, or new to you, as from a salvage yard/someone else?

Taking apart and fixing is easy. 30 mins. YouTube for video. Had same issues and this fixed it. Also, try zip-tying the connectors to the ECM.

 

So, it turns out that the new ECM/PCM I bought was broke during shipping or so I was told. It has different ECM/PCM in it now and runs great. No issues going on two weeks now. Thanks for all the advice and help.