This is a 2003 7.3 with about 280k on the clockTo start, I noticed a fuel smell at the front of the truck and noticed the oil thinned out when checking the level. Did some reading and decided it was almost certainly a failed injector allowing fuel into the oil pan. Ordered and installed new stage 1 injectors from full force. I checked every old injector for the copper washer on bottom and all is well. I looked at all but 2 injector cups as they are not possible to see. The 2 rear passenger side ones. Nothing noted. Blew out the cylinders with cranking it over with glow plugs removed. Now after all that, my fresh oil change is diluted with fuel again, truck runs rough at idle, idle is high and it’s taking a long time to start. Like 15seconds. Tunes were just updated via jelly tunes on my hydra. The turbo is less than a year old kC turbo. Does a pinched or cut injector oring seem likely or is an injector not seated properly. I also have a snap on scanner and am getting contribution faults on random cylinders. It was 3 4 5 and now it’s 1 2 8. All the faults are after the injector swap. I need help before I loose it and start a non fire with it.
Injector swap gone bad questions
To start, I noticed a fuel smell at the front of the truck and noticed the oil thinned out when checking the level. Did some reading and decided it was almost certainly a failed injector allowing fuel into the oil pan. Ordered and installed new stage 1 injectors from full force. I checked every old injector for the copper washer on bottom and all is well. I looked at all but 2 injector cups as they are not possible to see. The 2 rear passenger side ones. Nothing noted. Blew out the cylinders with cranking it over with glow plugs removed. Now after all that, my fresh oil change is diluted with fuel again, truck runs rough at idle, idle is high and it’s taking a long time to start. Like 15seconds. Tunes were just updated via jelly tunes on my hydra. The turbo is less than a year old kC turbo. Does a pinched or cut injector oring seem likely or is an injector not seated properly. I also have a snap on scanner and am getting contribution faults on random cylinders. It was 3 4 5 and now it’s 1 2 8. All the faults are after the injector swap. I need help before I loose it and start a non fire with it.
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This is a 2003 7.3 with about 280k on the clock
I’ve got some questions, but really don’t have any answers for you.
You state that you have diesel dilution in the oil because of its characteristics, but you do not state that you are making oil ( that the level is increasing). In order for an engine with this much oil capacity to reach a state of observable dilution, the oil level would become WAY overfull. You also don’t mention having the oil analyzed. Lacking either of these, I respectfully question your diagnosis.
How much have you driven since the injector swap?
I have no experience changing injectors, but I do spend a fair amount of time reading threads, so take it for what it’s worth… Not much. It seems most users consider cranking the engine with the glow plugs removed to be step #3 of clearing out the cylinders, to be performed after vacuum pumping, then rolling the engine over by hand 2 revolutions. I do suspect that failure to do all the above only raises the risk of damage somewhat, but I have no idea to what level.
You state that you have diesel dilution in the oil because of its characteristics, but you do not state that you are making oil ( that the level is increasing). In order for an engine with this much oil capacity to reach a state of observable dilution, the oil level would become WAY overfull. You also don’t mention having the oil analyzed. Lacking either of these, I respectfully question your diagnosis.
How much have you driven since the injector swap?
I have no experience changing injectors, but I do spend a fair amount of time reading threads, so take it for what it’s worth… Not much. It seems most users consider cranking the engine with the glow plugs removed to be step #3 of clearing out the cylinders, to be performed after vacuum pumping, then rolling the engine over by hand 2 revolutions. I do suspect that failure to do all the above only raises the risk of damage somewhat, but I have no idea to what level.
1 - 3 of 3 Posts
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