Join Date: Jan 2009
Thanked 21 Times in 10 Posts
A rough idle when cold is common on high mileage injectors. 7.3 injectors are typically due for a rebuild at 250k, obviously depending on oil and fuel services though. The stalling and not starting thing is not related to injector wear though, nor would it be related to low compression. What is your oil pressure? Could you be draining your HP oil reservoir over time due to low oil pressure? No oil in the HPOP oil resevoir would cause the injectors to not fire, then you would have to crank the truck for a while to refill the reservoir. 2 potential issues come to mind: 1) you're low on oil, 2) your LP oil pump is going out or you have excessive clearances in your motor that is causing too much internal oil losses when you're oil heats up. . .try running a Lucas Oil additive to your oil and see if it helps your situation. It would just be a band-aid, but would get you running and help isolate your problem.