I have a 2003 F250 6.0 that is giving me some real trouble. I searched for an answer for my problem, but couldnt find a good one. The truck runs pretty good when cold, but the trouble starts when I shut it down and restart it within 10 minutes or so. It runs real rough and feels like its missing until I get above 65MPH, when under 65 I can get the shakes to go away if I really lay into the pedal. There is a noticeable loss in power, the truck just doesnt want to get up and go anymore. I just changed my fuel filters and drained the bottom plug to find some nasty rust colored flecks in the fuel (not sure what it is). Im really confused as to why this problem persists only when the truck is warm. I dont get any dummy lights or gauge fluctuations. I did run it tonight with the egr unplugged and did not notice any difference. By the way, this truck has 120k on it and I have been pretty good with changing filters and fluids. Im very concerned with the amount of trash in the lower drain valve. I'm gonna see if it is throwing any codes tomorrow. I just hope the debris in the fuel system didnt make its way to the injectors!!
I did see that someone mentioned a "High Pressure Oil Pump" related issue.
Any ideas or suggestions?