Need some help on my 7.3
A little back story, at 150,000 the motor was pulled for all new exhaust, turbo, injectors, and bunch of other odds and ends. Truck has 220,000 on it now. Havent had any issues with it until a little while ago it sat for 4 days and when I went to drive it its smokes like a freight train, so bad you almost cant drive it. There was no loss in power and no rough running at all just blue/grey/white smoke.
Park the truck for a couple weeks and start working on it, found fuel in the coolant. So I throw a set of cups in it, inspect all the injectors re ringed them and put it back together. took the turbo off to swap in with a regular 38 because there was some oil in there thinking the seals went in the turbo and its still doing the same thing but now running horrible. Did a contribution test and cylinders 1,3,5,8 all came up.
Popped the valve cover off the passenger side and have good oil coming out of them, great buzz test. While running I popped the injector plugs off and there was no change in the engine from 1,3 and 5. #7 was running so I swapped #7 into #1 and it didn't follow. But I also haven't put a lot of miles since I did the cups so it may still be air bound?
Heres what I did so far-
New cups and o-rings
on all cylinders 200ish PSI
on first crank
New valve cover harness
No oil in fuel filter
No coolant loss
Swapped injectors in dead hole and it DID NOT follow
and all wiring.
No excessive blow by, normal 220,000 miles.
And a bunch of other stuff i am forgetting.
My question is where should I go next? The smoking is horrible with the littlest bit of load on the engine. I took the CCV
out of the intake and it made no change, no excessive oil in the boots/pipes. Im kind of thinking that an injector might be sticking? I also did put and IDM
in it last year due it just randomly crapping out going down the road. The injectors are 180cc 30% from Full Force diesel (Awesome injectors!) Any help would be great, just wanted some input before I tear back in to it again. It smoking does not change with engine temp, its not to bad at idle just as you go to accelerate. Also not losing oil or making oil.
Thanks for the help.