Scott@All Pro Diesel
New member
This is my buddy's 2006 6.0 powerstroke he bought for cheap. He wanted to get it running for as cheap as possible.
Problems when it came in: would run until hot and then die and had a knock.
Pulled passenger side vc, found #1 rocker broke and replaced. Then went on to icp problem, updated stc fitting. Still wont restart after hot. Truck ran perfectly until until oil temp got up to about 170. Then ICP would drop off and then die. Did a leak test and found small leaks. Replaced dummy plugs and stand pipes. Still same problem. Replaced high pressure oil pump with a known good used one. Replaced injectors with known good ones that I swapped out of another customers truck because he upgraded. Still same problem. Checked low pressure oil, was slow to build oil pressure. Replaced lp oil pump (found some scarring but pump gears were still within specs) and oil cooler. Oil screen was pretty dirty. Changed oil again. Did leak test again with 170 psi of shop air, could not hear any leaks. Restarted truck and fired up pretty quick, everything looked good, ran for about 5 seconds, RPMs came up to about 1100, truck died. Would not restart, ICP was only at 250 while cranking. Every time I tried to start it the ICP got better but would not get over 360. Left for the night, came back this morning, tried starting one more time. ICP came up to 480, let it sit for a second, tried again and truck started but died right away. Tried starting again, ICP now only at 90. Sorry for the long post but need some ideas.
:fustrate:
Problems when it came in: would run until hot and then die and had a knock.
Pulled passenger side vc, found #1 rocker broke and replaced. Then went on to icp problem, updated stc fitting. Still wont restart after hot. Truck ran perfectly until until oil temp got up to about 170. Then ICP would drop off and then die. Did a leak test and found small leaks. Replaced dummy plugs and stand pipes. Still same problem. Replaced high pressure oil pump with a known good used one. Replaced injectors with known good ones that I swapped out of another customers truck because he upgraded. Still same problem. Checked low pressure oil, was slow to build oil pressure. Replaced lp oil pump (found some scarring but pump gears were still within specs) and oil cooler. Oil screen was pretty dirty. Changed oil again. Did leak test again with 170 psi of shop air, could not hear any leaks. Restarted truck and fired up pretty quick, everything looked good, ran for about 5 seconds, RPMs came up to about 1100, truck died. Would not restart, ICP was only at 250 while cranking. Every time I tried to start it the ICP got better but would not get over 360. Left for the night, came back this morning, tried starting one more time. ICP came up to 480, let it sit for a second, tried again and truck started but died right away. Tried starting again, ICP now only at 90. Sorry for the long post but need some ideas.
:fustrate:
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