Truck Won't Start!! :-(

[JCG]

UPDATE!

Good News: The mechanic got the truck started today! He replaced the FICM, programmed the new one and the truck started right up! I think he also ran a full systems diagnostics and everything checked out OK. I won't know if it will still crank long before starting, but after a few days I'll post a further update and let you guys know how its going. Thanks for all of your help and suggestions. One curious thing is that my truck never missed nor stuttered on start-up neither did it puff white smoke while warming up, yet the FICM went bad without warning.

Thanks again,
Julian

[JCG]

UPDATE!

BAD news... My truck left me stranded again. :-( After starting up last Wednesday, I used it the rest of the week until yesterday afternoon when it did it again. I went to start it, about 30 minutes after shutting it off, and at first it stuttered, without starting, but that was it. Just cranking and cranking with no indication of it trying to start. This crank with no start was just what it did before the FICM replacement. I hope the new FICM is still good. Any ideas? I love my truck, but I'm starting to feel pretty frustrated with it...

Thanks for reading,
Julian

[m-chan68]

Originally Posted by JCG

UPDATE!

BAD news... My truck left me stranded again. :-( After starting up last Wednesday, I used it the rest of the week until yesterday afternoon when it did it again. I went to start it, about 30 minutes after shutting it off, and at first it stuttered, without starting, but that was it. Just cranking and cranking with no indication of it trying to start. This crank with no start was just what it did before the FICM replacement. I hope the new FICM is still good. Any ideas? I love my truck, but I'm starting to feel pretty frustrated with it...

Thanks for reading,
Julian

This is why I was a little doubtful that the FICM replacement fixed your problem like you indicated. Although FICMs have been failing lately at a very rate, I was doubting that THAT was the problem. Based on the fact that you indicate that you encounter difficulty starting the engine after it has warmed up, I still suspect you have a high pressure oil system leak. If I had to guess, I would say that the tech that replaced your FICM, likely replaced it due to the fact that it is the much easier repair, than digging into the high pressure oil system.

My suggestion is to bring it back to the dealer right away. Park it, and hold the accelerator TO THE FLOOR for a good 5 minutes or so, revving the engine at 3900 RPM. Get it good and hot. Not shut the engine off, and try to restart it. Once you have the symptom present, bring one of the service personell out to show them, so that it doesn't get reported as a "no fault found".

Get them to monitor the typical 6.0L no-start PIDs to see what's missing. Again, I put money on it, that you have a high pressure oil system leak as I already mentioned in my previous post in this thread.

[JCG]

m-chan68,

You were right. After leaving me stranded on Saturday, my dad went to the truck today and, now that its cold, it started up! Well, he'll be taking it to a dealer, not the same place where they replaced the FICM, so they can look for a high pressure oil leak. Apparently this will be covered under warranty, I hope, so we'll see how they do. They said something about pressurizing the system to look for the leak. Anyway, how much of a dis-assembly will they do to look for this leak? I know someday I'll probably wanna do an EGR delete, so if I can have the labor covered under this repair, it'd be great.

Thanks again for your insight,

Julian

[m-chan68]

Originally Posted by JCG

m-chan68,

You were right. After leaving me stranded on Saturday, my dad went to the truck today and, now that its cold, it started up! Well, he'll be taking it to a dealer, not the same place where they replaced the FICM, so they can look for a high pressure oil leak. Apparently this will be covered under warranty, I hope, so we'll see how they do. They said something about pressurizing the system to look for the leak. Anyway, how much of a dis-assembly will they do to look for this leak? I know someday I'll probably wanna do an EGR delete, so if I can have the labor covered under this repair, it'd be great.

Thanks again for your insight,

Julian

If you are under 100,000 miles, yes this repair is covered with a $100 deductible. And yes, to diagnose this requires pressurizing the high pressure oil system with shop air, in order to pinpoint the source of the leak. The amount of disassembly required will be dependent upon what thaey pinpoint as the source of the leak. The most labour instrusive leak to fix, will be the STC fitting which requires turbo removal to access and replace.

[JCG]

m-chan68,
My dad drove the truck to the dealer, about a 1.5 hour drive, and when they shut it off, it started right up. They tried it a few times and each time it would start right up. They ran all of the diagnostics and all checked out ok. They let it sit for 30-40 minutes and again it started right up. I can't believe this! Anyway, my dad left it there. They will be removing the turbo in order to pressurize the system to look for leaks. If they can't find anything and the truck keeps starting up, I guess I'll pick it up and keep using it, worried about the next time I'll be stranded.

Thanks,
Julian

[m-chan68]

Originally Posted by JCG

m-chan68,
My dad drove the truck to the dealer, about a 1.5 hour drive, and when they shut it off, it started right up. They tried it a few times and each time it would start right up. They ran all of the diagnostics and all checked out ok. They let it sit for 30-40 minutes and again it started right up. I can't believe this! Anyway, my dad left it there. They will be removing the turbo in order to pressurize the system to look for leaks. If they can't find anything and the truck keeps starting up, I guess I'll pick it up and keep using it, worried about the next time I'll be stranded.

Thanks,
Julian

If I were the servicing tech, I would've air tested the system BEFORE disassembling any part of the engine. To do so, only would've required removing the ICP sensor and installing an air line fitting adapter in its place. I would imagine this test would be far less intrusive than to do any disassembling.

Well, if they are "going in there", I would guess that they intend on replacing the STC fitting anyways, which to me is a good thing, given that it is a permanent fix to this issue.

[martinmdt1]

03' 6.0 won't start after it gets warmed up. Let it sit 5-10 minutes and it will start after turning over for an extended time. Starts fine when cold and runs fine. What's going on here?

[JCG]

Okay,

The dealer says they identified the oil leak and the truck will be ready for pickup tomorrow. Apparently, after pressurizing the system, they found one of the o-rings on the right side high pressure oil rail dummy plug was broken. They replaced it and were in the process of putting everything back together, when I spoke with the service manager.

m-chan68,
What do you think?

Thank you all for the help and support. I hope my truck comes out running, and STARTING, good-as-new. jeje

Julian

[m-chan68]

Originally Posted by JCG

Okay,

The dealer says they identified the oil leak and the truck will be ready for pickup tomorrow. Apparently, after pressurizing the system, they found one of the o-rings on the right side high pressure oil rail dummy plug was broken. They replaced it and were in the process of putting everything back together, when I spoke with the service manager.

m-chan68,
What do you think?

Thank you all for the help and support. I hope my truck comes out running, and STARTING, good-as-new. jeje

Julian

If you read through this entire thread, you will see that THAT was what I had suggested from the beginning. When you pick up your truck, look at all the part numbers that are on the invoice carefully. That dummy rail plug part number is -W302195. If there is only one charged out, that means they only replaced the one on the passenger side bank of cylinders, and the one on the driver side will fail in the future. If there are two charged out, that means they replaced BOTH banks. Better yet, when you pick up your truck, post everything on the invoice here, and I can tell you what they did.