dentexpowerstroke
Active member
04 6.0 227k miles.
Truck started off with a very slight miss at idle on the first day it got cold here. Drove about 40minutes home from work and it ran fine without issues, when I got in the driveway and put it in park it had a bit of a rough idle. That condition continued for several days during the cold weather, ran a bit smoother as the truck warmed up. On the way to work I turned onto a 55mph street, went to accelerate, hit 30mph, truck started to lose power and even at full throttle Rpm slowly decreased until it stalled. Pulled over and the truck had a longer crank but started and ran fine. Chalked these up to oil thickness due to temperature. 2 days later the truck would intermittently have the same symptoms (acceleration would cause power loss, rpm drop to stall out) several times on the way to work. Got it home and began looking at it. Ipr, icp, batt volt, ficm power, ficm sync, cam/crank sync all check good, prior to the truck not starting (even with the issues presenting) truck would build and hold 3200psi icp on acceleration. Truck easily builds oil lpo when cranking and fuel bowl fills up rapidly with key on (haven’t checked actual pressure). Oil condition and level is good, changed oil filter while inspecting the drain back valve. Oil pressure regulator looks goods. While diagnosing the issues the truck started then sputtered and stalled quickly. No truck won’t even start, it doesn’t even sound like it’s attempting to fire any injectors. I’ve pulled and checked the ipr screen due to it having 8 new injectors, new hpo, new standpipes/dummy plugs/oil rails, and oil cooler approximately 3k miles ago. Any more ideas, I’m completely stumped on this one.
Truck started off with a very slight miss at idle on the first day it got cold here. Drove about 40minutes home from work and it ran fine without issues, when I got in the driveway and put it in park it had a bit of a rough idle. That condition continued for several days during the cold weather, ran a bit smoother as the truck warmed up. On the way to work I turned onto a 55mph street, went to accelerate, hit 30mph, truck started to lose power and even at full throttle Rpm slowly decreased until it stalled. Pulled over and the truck had a longer crank but started and ran fine. Chalked these up to oil thickness due to temperature. 2 days later the truck would intermittently have the same symptoms (acceleration would cause power loss, rpm drop to stall out) several times on the way to work. Got it home and began looking at it. Ipr, icp, batt volt, ficm power, ficm sync, cam/crank sync all check good, prior to the truck not starting (even with the issues presenting) truck would build and hold 3200psi icp on acceleration. Truck easily builds oil lpo when cranking and fuel bowl fills up rapidly with key on (haven’t checked actual pressure). Oil condition and level is good, changed oil filter while inspecting the drain back valve. Oil pressure regulator looks goods. While diagnosing the issues the truck started then sputtered and stalled quickly. No truck won’t even start, it doesn’t even sound like it’s attempting to fire any injectors. I’ve pulled and checked the ipr screen due to it having 8 new injectors, new hpo, new standpipes/dummy plugs/oil rails, and oil cooler approximately 3k miles ago. Any more ideas, I’m completely stumped on this one.
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