The screen missing definitely isn't a good thing. Did you notice anything inside the IPr. If there is debris inside will jam the piston inside and keep it open.

Oil pressure gauge not budging isn't a good sign. One way to really see if you got oil pressure, is to take out the oil filter out, and depress that black drain valve in the bottom of the housing, and you crank and its fills, then you got oil pressure. Sometimes the pressure sender don't always activate right away when cranking, that I looked through other threads. But if the oil doesn't come then yeah you got a LPOP issues. I don't why I didn't think of it but you ll be the first that if this is the issue. Which isn't to much of a common problems if not rare. But try that. You can crank without the turbo, just re install the IPr and make sure your intake is free of any objects. Heard horror stories people cranking with rags in the intake an got suck in.

 

I found the piece of missing screen inside the ipr. Not sure if it was jammed in there or not, it felt magnetic so possibly it was just stuck there because of that.

Im going to buy the screen kit and reinstall. If it still doesnt fire up ill do the oil filter trick. If that works and the lpop is ok i guess the turbo is coming off and ill check the hpop screen, stc and i guess once im in that far ill pull the valve covers and check the stand pipes.

 

It's common that those screens pop off and jam it. just really make sure it's clean. Even if you clean them they may be worn inside from all the debris entering it, allowing it to leak, which I maybe worried with your busted screen. But only real way for guys to know for sure, with the IPr back on the truck, they air up the high pressure system with air, and check for leaks, and play around with IPr with varied voltage up to 12 volt to see proper function. Some guys even do it to the IPr on the bench, but there seem to be that some critsize it, not sure why.

But that piece screen definitely is a problem. In your case if it's not, well you definitely prevented a futur problem for sure

 

Ok so i charged up the batts, no fire.
Pulled the oil filter and cranked it over, the housing fills up while cranking. Pulled the fuel filter housing cap and turned on the ignition, it fills up with fuel.
Pulled the turbo and hpop cover, which wasnt THAT bad btw, and i believe it still has the original stc fitting. How many bolts hold the hpop in? Also, the oil screen is under the oil cooler right? I got the hpop cover out without removing the intake, can the oil cooler come out this way too? Is it possible the screen is so plugged that its not creating enough low pressure to fire the injectors?

 

Bummer, but if it still has the old style stc, if I were you, change it. There will be 3 main bolts on the pump and 2 bolts on the stc. Remove all five then it's out.
Yes, The filter screen is under the oil cooler. But this screen filters oil going to the hpop. If this screen is caked with crap, it would starve the hpop and IPr of oil and not firing the injectors but I never heard of that happening. But what generally happens is the screen can rip open and no longer filter large micron pieces, then it ll go to the IPr and hpop and cause premature failure.
As for the oil cooler removal, unfortunitely you ll need to remove the intake. It's almost impossible to remove it with the intake there cause of bolts in the front of the cooler housing being hidden under the intake.

 

I wanted to ask is, when your cranking for a long time, will the pressure gauge go up eventually? When the oil in the filter housing was rising when you cranked it, do you think it would of filled up in 10 sec or so? On the IPr, when you pulled it apart, was there metal particles (or sparkles)?

 

Is the rpm tach on the dash move at all when your cranking?

 

Ok, i believe the tach moves while cranking. There was no metal shaving on the ipr. When i pulled the oil filter and cranked i do believe it would have filled in 10 seconds or less but i shut it off after it got about half full. I dont know what else to check other than maybe the standpipes after i pull the stc and check it.
Theres a plastic piece on the stc and i noticed that it spins freely. I was thinking it probably shouldnt move if its supposed to have oil flowing through it, maybe thats where im loosing pressure?

 

I also noticed that most of the bolts ive removed have been way too easy to remove. Im not sure if someone has been in there before but everything has been a little bit tighter than finger tight. Even the bolts that hold the turbo to the pedestal were VERY easy and i was expecting them to be the hardest to remove. Its a little wierd.

 

What stc fitting is it

Is it the left or right?
The left is the updated one, and right is the older one.
The bolts should be way more tight. If I remember I think they are torque atleast 18 foot pounds. Can be the problem