so i have a 95 K2500 VIN F 6.5TD

recently it was doing the same thing, starts, runs for 20 secs and dies.
so i would re-prime it (via. fuel filter) and it would start and run all day.
start it up 30 mins from them and it would die again.
Also, if i were driving and put it past 1/2 throttle, it would pop and fart and act like it wanted to die.
ive already replaced the: Sending Unit, Lift Pump, Return and Feed lines, Fuel filter,
WHAT COULD IT BE?!?!

someone please help me

 

if you had not just replaced it, i would say it was definately your lift pump. since you did replace it, perhaps it's the injector pump..?

 

check your oil pressure sending unit and wires the fuel system relies on the oil pressure sensor

 

yup, it was the OPS -_-

figures the whole fuel system was done to figure it out

 

i would be doing OPS and LP test