Truck cranks, but won't start

[m-chan68]

270 psi is well below the minimum 500 psi needed for the PCM to command the injectors to fire. It's interesting that your truck didn't set a P2290 or P2291 code. You now need to isolate the source of your high pressure oil system leak.

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Last edited by m-chan68 : 07-01-2009 at 09:24 PM.

[realfstkid]

Originally Posted by m-chan68

270 psi is well below the minimum 500 psi needed for the PCM to command the injectors to fire. It's interesting that your truck didn't set a P2290 or P2291 code. You now need to isolate the source of your high pressure oil system leak.

Could this be because of a really slow crank? The batteries were pretty dead when I was doing this.

Any help on the other codes? Any ideas?

[realfstkid]

The only reason I say this is because the truck wouldn't start a few weeks ago in exactly the same manner. I towed it to the dealership, they charged the battery, and it started up fine for them. The tech suspected HPOP, but he ran tests on it, and after all the tests he concluded that it definitely wasn't the HPOP. He tested it cold, then ran it for a while and tested it hot, and he said it was working fine.

How hard is it to get in there to replace a HPOP or the seal that commonly fails?

[realfstkid]

anyone? I am charging it right now to see if that will help. What kind of aftermarket options do I have for HPOP?

[04Harley]

RealFstKid:

ANy resolution? Sounds like a very similar problem to what is happening to me - Last time I swapped in new batteries, and i think the dealer replaced the ICP (or the IPR, cant remember). Started, and its been a little slow to start over the past month - but now its dead again, and im trying not to kill the batteries/ have it towed.

[realfstkid]

The problem was the HPOP. I pulled everything off the top, and replaced all the o-rings, and the STC fitting. I tested the system with everything off, and it definitely was the STC fitting. Replaced it, retested it, and everything was air tight. Took the opportunity to install 4" MBRP turbo back exhaust (cat delete) and do my own EGR delete as well (pics to come). Got 'er runnin today, and boy am I happy. When I had the manifold off, I soaked it in parts cleaner overnight, and now the engine is a LOT louder than I remember. No more insulation inside the manifold.

[yaegerst]

I would love to help you but my truck is doing pretty muck the same thing and I have no ideas. Maybe I will start swapping relays aroung and see if anything makes any difference. The only thing I have had any luck doing is draining the batteries.