Truck turns of and loses power while it's on what could cause the stall out .

What is your question?

Glow plugs, fuel injectors, sensors wiring issues, air seeping in fuel system are all possible reasons so far I've heard.. I do notice my coil or glow plugs light comes on as it loses power randomly and won't gain full strength after ....and it's usually stops as I release acceleration . Wiring harnesses been tampered with also my alarm wires were cut so I'm trying to figure a good diagram to follow just make sure it's not a harness needing replacement and I can deal with alarm later.

What makes this problem better or worse?

Not priming every cold start

How long has your 2003 Ford F-250 Super Duty had this problem?

3 months