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ok the fuel oring on the injector was smoked....oring on these stage 2 only had 30K on them. again it was the injector nearest the dash on drivers side.

 

hey guys, im the one that's been driving out there to work on this thing so you can ask me any questions as well. the truck was holding fuel pressure over night and around 10psi. that might contribute to the injector popping out but I thought it was very weird. this sumbich literally shot out and hit the firewall lol

any who, like you guys have seen from the video its NOT a CPS. the truck has severely long cranking times(batteries confirm) and it will start and run with a bad skip (2-3) cylindersl. then it will loose HPO and start to injector knock (lack of HPO) and shut off. there is next to zero throttle response.

For fuel pressure, his system is basically the same as everyone elses regulated return except the front of the motor gets the feed and the rear is return. shouldn't be an issue, however the fuel pressure in this thing raises INCREDIBLY slow. maybe a minute or so to raise to to 65psi but once it does it will hold it. This has not changed since I started working on it.

I don't see how it can be the IPR for one thing. once it snaps out of it and it will actually idol with a mean skip and the truck was driven to where I worked on it. This was after he re-oringd the ipr.

When I first worked on it, the rear driverside harness had a smoked GP and injector pin so that's where I first noticed the skip but changing that did absolutely nothing(coinsidentaly burnt in the coming events of its current issue?

 

Seems you have fuel pressure but fuel flow is a different story. That may or may not be the issue but I'd get the fueling issues squared away first.

 

The fuel system should not stay pressurized

 

Couple things come to mind.
Some fuel systems can stay pressureized for long periods, I don't seet hat as an issue.
1) The video sounds exactly like my truck when I shut the power to the fuel pump off and forget to turn it back on.

2) It also sounds exactly like the truck I mentioned earlier that was out of engine oil. Long crank to fill HPOil res and after it runs for a few seconds, runs out of oil and shuts off. I know fuel pump was not issue with local truck cuz it was replaced trying to figure it out.

3) The popping out injector and gurgling in the fuel tank sounds like cylinder pressure is getting into the fuel system and that will wreak havock on everything. The lower fuel o-ring is one thing, it must also have been loose, or have a bad sleeve or something. When cylinder pressure gets to the fuel it pressurizes it so much the injectors won't fire. Will run briefly upon start-up then get worse till it shuts off.

My money is on one of the 3 above. Check engine oil, try a new fuel pump, and/or investigate that #8 more closely to see any damage in there.
Was the copper washer still on it, or was it gone as was the lowest o-ring?

EXACTLY describes symptoms from #2 above....Just saying.....

 

the reason I didn't think the fuel pump wasn't an issue is the fact that when it runs and eventually gets to 65 PSI it doesn't drop and you can hear the pump doing its job. I have unplugged my truck before and showing zero PSI it will still run just blows blue smoke. might just be the way you route the system? mine will draw enough fuel to idol but wont die.

The oil res stays full and does not bubble, if I remember correctly...his oil level was perfect. Jim your tossing some really good ideas, im starting to think its a hardpart.
The injector sleeve APPEARED to be in ok condition but being almost 260K on the truck anything is possible.

 

From what I can see this issue was happening awhile ago, and the truck was parked? It isn't a real immediate thing.

 

after it died on me on the hwy. i had it towed to my house and i couldnt get it started for 3 weeks. then one day she turned over and went back to its same issues. blue smoke at startup blue smoke under load.
so i let it rest for some time trying to figure out what was up.
and here we are today - 4 months without my truck.

 

It may not actually pertain to the issue at hand, but it is good for general maintenance. What kind/grade of oil are you running? These trucks are way serious about good quality oil. Typically Shell Rotella 15w40, or Delo 15w40.

I tried a house brand 15w40 and my truck was missing and having all sorts of issues. I figured it was CPS and IDM I replaced both. Still was present. I remembered the oil I had around that I used. I swapped it out and I've had no issues.

Typically blue smoke would be oil burning. A common source of that is your turbo needing rebuilt (but that doesn't intermix in with the other issues you have going). So I am honestly not sure there.

 

rotella 10w40 always...
is there a way to change #8 injector sleeve without pulling the motor or head?

 

I think too much thought is put into the injector popping out .. FP & OP drop to zero when the key is off .. Compression in that cylinder ,( Both valves closed ) could cause that. THe IPR can be sticky when cold ...Can you scan IPR DC % ?

 

p1219% h (cid) low
buzz test p1219% h (cid) low
injection pressure reg 14%
injection control pressure 3978-4013

 

P1219 is referenced to a wire from pin 96 on your PCM, leading to IDM. Probably shorted to ground. It is yellow with blue. If you check that wire and it is fine, then your IDM is most likely bad.

Basically it is a cyclical system that ranges from high to low in reference to which injector is firing and which one is next, following the firing order. If that is at idle your ICP is way high. It should be around 5-700 if I recall correctly.

 

ICP that high ,IPR dc should be higher too . 14 % IPR should be not much more than 700 ICP . THe PCM thinks you have it floored