Ok, just bought this truck today and got a good deal on it. It is a "mechanics special". Starts fine, runs fine at 60mph at 1900rpm, no smoke while idling, small blue cloud when throttled. 1996 F350 7.3PSD, stoke turbo, 4.10:1 gears, 260K miles, crew cab, E4OD auto tranny, and no mods as of yet.
So here is the problem, it will start fine and if I baby it, it will get up to speed, shift very smooth and go like no problem but if I push the pedal down and put some pressure to it, she will start to spit and sputter and jump and buck. Once I let off the throttle and ease it back on, it will run fine. Also, if I am sitting still and gun it, it will again spit and sputter and buck and if I just drop all throttle she will die, if I ease off the throttle, it will continue to run.
I don't the pre maintenance of this truck because I just bought it. Tomorrow I am putting on a 6637 air filter, new CPS(black one from Ford, and if the old one is good, then I will put it in the glovebox for a spare), new fuel pump and clean the screen on the bowl and an oil change with new filter.Hopefully this will solve the problem, if not, any suggestions? Thanks guys and gals.