"Truck(diesel) starts ,temp gauge goes to hot,fuel gauge goes to empty...runs for 10-15 secs and dies"
I would say you have 2 different concerns;
"runs for 10-15 secs and dies" [Primary concern, makes truck usable as anchor only].
"starts ,temp gauge goes to hot,fuel gauge goes to empty" [secondary to if the truck is usable, since some of these do that but then goes to normal operation after the gauges sweeping full length ?checking gauge needle sweep?]
have you bleed the fuel injectors and have good clean fuel getting to the pump?
have you checked the fuses?