I have a 04 6.0l and i have had lots of problems with it. It started with the egr cooler going out and locked up the egine, so I replaced it with the delete kit. Finally got it running but had no power, so I took it to a shop and had it pluged in and I was told that I had 4 bad injectors. I pulled out all 8 and sent in and had tested and all 8 came back good. I put them back in and sent to another shop to have pluged in and it showed the same injector codes, was told to replaced the injector modular, so I did and it did run alittle better but only had about 80% power, so I took it back and had it pluged back in and he cleared all the old codes to start over and told me to run alittle more, I made it back to my shop about a mile away and shut off the truck for about ahalf hour and went to start it and it would'nt start. I cranked on it for awile and the oil pressure would not come up, so I took off the oil filter cap and had no oil in it. I need help, this thing is killing me. Why would'nt I have oil pressure from start up.
Thanks
Dave

 

Have you checked or done any diagnostics on the HPOP?

 

I have not tested the hpop but I don't thank Im getting oil to the filter. Im thanking more of a pick up problem. ?????????

 

Well you wont get oil coming in there without an oil filter in there to the best of my knowledge. I think there is some sort of a shut off valve to prevent oil coming out with no filter in. Best bet would be to get it hooked up to a scanner and see what oil pressure is then, and HPOP pressure. Do you know what injectors they were telling you were bad? If you had them tested and they tested good, my guess is the "bad injector" diagnostic was in error and it was in fact the FICM that was bad, which I think you said you replaced? That happens quite a bit. Do you still have the old "dead" one? If you do PM me on that.

Your issues do sound related to HPOP to me. Does the truck start at all now? Either cold or warm? If it starts when it's cold but wont re-start when warm that could be a different issue.

 

O.k I got the truck started today and took to the shop and had pluged in and it showed good oil pressure and a code for the egr valve. I did'nt take out the egr valve out when I put the delete kit in, so I took it out and put the cap on. I still have no power, I don't thank Im getting any boost. I was told to check the valve on the turbo, which I don't know What it is called. I took it out and looked at it, I have power to it and when its pluged in I have power coming out too, but the valve dosent do anything. I dont know how to tell if it good or bad with out changing it. Any ideas?
Thank For The Replys
Dave.

 

That's just a solenoid for the VGT function of the turbo. If you're having turbo issues and it's not spooling you'd be getting a ton of black smoke out the tail pipe.

Have you tested the FICM you have on the truck right now? I'd start there. You need voltages with key on engine off, then cranking, then running. Should be 48 V at all times.

 

Had it pluged in today and that solenoid is the only code that came up. The turbo is not spooling up but no black smoke, just have no power. I gess Im going to replace it and see what happens. Its only money rite?

 

 

I would advise against that. This is why people get so frustrated working on diesels, they're not properly diagnosed and then parts/money are just thrown at them to help fix it, when the root cause is never known.

If you are indeed getting a VGT solenoid code, it wouldn't hurt to swap it out I suppose. I would take the turbo off and try reconditioning it first, it's cheap, easy, and will help you learn a little about your turbo. You can find the process here: Diesel Technician Society

You can find a lot of good info in the main section of those articles, here: Diesel Technician Society - Articles

 

Big help, Thank You. Ill do that this weekend and see what happens.