03 6.0 crank no start/ no codes??

[03smokerstroker]

Truck has 128k miles egr delete studs oil cooler compound setup 210cc injectors stock hpop. Truck ran fine went to the store shut it off 30 min later wouldnt start. Snuffed the intake with diesel and it fired right up. Took it home and it sat over night. Now it will crank no start even when i try to snuff it out. Has no codes except for p1000 but its always been there. Im at a lose on what to do. Any help would be greatly appreciated [/LIST]

[dannyboy950]

Check your fuzes and relays. FICM,PCM may not be getting power.

[03smokerstroker]

Fuses are good had the fog light fuse blow but that shouldnt have stopped it from starting?? Checked ficm voltage its fine its getting a good ground pcm is getting power. My only other thoughts are high pressure oil leak due to the stock stc fitting still being in the truck? Cranking psi is only 213-221. I know it needs 500psi to start.

[dannyboy950]

Yup thats your answer, some kinga leak in the HP oil system.

[michaelaiman]

Havnt even gotten a low ICP while cranking code? thats weird. But yeah those numbers would definately indicate a HPO leak. There are also STC fittings under the valve cover on an 03. where the standpipe comes through the rocker and meets a braided line is one and the other is where the braided line meets rail itslef. Page 40: Fuel Management System

[xmen]

I had the same problem, the dealer said it was a HPOP leak somewhere and wanted to a ridicules amount of money to diagnose it for me...I brought it to Bulletproof Diesel in Mesa Arizona they found the spring for the oil pressure regulator was broken, it would build pressure to feed the HPOP...Replaced the spring truck start right up...

[TerraScaper]

You can try unplugging the ICP... If its bad and you unplug it it will runn on default settings. I had the same problem and it was the IPR. If you had any recent work done and the oil cooler was removed I would put my money on the IPR You should check for leaks with shop air into one of the oil rails. Do a search on here, there is a ton of infor on it.

[mechanix]

Originally Posted by 03smokerstroker

Fuses are good had the fog light fuse blow but that shouldnt have stopped it from starting?? Checked ficm voltage its fine its getting a good ground pcm is getting power. My only other thoughts are high pressure oil leak due to the stock stc fitting still being in the truck? Cranking psi is only 213-221. I know it needs 500psi to start.

I had something similar check my thread out, it will give you an idea of what could be going on.03' No start when hot, ok when cold

[03smokerstroker]

Is there an stc fitting attached to the hpop underneath the hpop cover on the 03s? Or are they under the valve covers?

[TerraScaper]

Heres a pic of the HPOP lines under the valve cover.



Here is the way I removed the STC fitting from an 03-04 braided oil line