truck smokes white/grey and stumbles during idle and accelration

[us_marine_kassidy]

99 f350 7.3l truck smokes white and grey smoke while starting and running once started it idles rough and stumbles during acceleration truck been down for 2 weeks and im all out of ideas
no chip or programmer
4 inch exhaust and stage 2 intake

[Justinlw]

Maybe an injector, do you know anyone that could hook it up and run a couple tests? Lots of people have Autoenginuity now, and can do a buzz and contribution test on it. Maybe somone in Virginia can lend a hand??

[nunly81]

I just fought a battle not to long ago and it was the same thing. I replaced the hp oil pump and it fixed the problem.
It was running fine at idle but when you loaded the engine or tried to rev it up it would stumble, smoke and eventually shut down and not want to restart.
But to find that you need IDS to monitor the icp pressure. However if you can get the codes and tell us what the numbers are, I know we can help even more.