Hello I have a 96 F250 7.3L It starts fine with no problem. But once you get going (driving) it starts to run rough like its misfiring. there is a engine light on so had the parts store run the codes but when they tryed the truck died. so they wasnt able to find out whats going on. If anyone can help me figure out whats going on i would appreciate the help. Thanks

 

if it was a high pressure oil problem it would run rougher at idle. so if it starts and runs good at idle, but rough when driving down the road, sounds like it may be a fuel delivery problem. or it may also be the crank sensor going bad. they are a major problem on the 7.3s

 

Thanks for your reply
Ok thanks. yeah when its first cranked it runs fine until the check engine light comes on which it takes like 10 seconds after its cranks then when the light comes on it runs like crap. is there a way i can test the crankshaft sensor?

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OK, so here's a update to the problem that i was having. I took the truck into a shop today and turns out it is the Injection Control Pressure (icp). Which is a easy fix.

 

glad ya got it figured out.

 

Me too... thanks for your help..