03 6.0 no start

[Luis1PR]

my 6.0 while driving died, towed it home pulled codes and and changed CMP & CKP, still no start, checked voltage on FCIM and it was in the high 30 so sent it off and had it repaired, then still no start, checked in the forumsso then ended up changing all the injector seal, fuel filters, batteries, check wires for chaffing also from point A to B for continuity and finally the PCM, still no start, purchased a scantool with ford enhanced software to monitor PID's and FCIM is 48V, rpm 150, ICP desired pressure measured in ft pds/ HG max is 302.06 and actual .166, duty cycle is 84.77. CPM & CKP at times register in sync and others don't. Still with no start. Can someone please help? Thanks

[03strokerpower]

whats your fuel PSI at?

[roche837]

The truck needs 500 psi from the HPOP to start. idle you should see 650 or so and its increases while driving. how many miles are on your truck?

[Luis1PR]

I have 200,000 plus, never had any problems but alternators. I've beentold it needs 500 psi at the ICP, what doyou mean at the HPOP? I'm good with the older diesels but I'm determine to beet this one. 4 months down now from waiting on parts. Thanks for any help. I also was read that the starting rpm is to low and should be over 200rpm but ford specs calls for 185 rpms.

[roche837]

Originally Posted by Luis1PR

I have 200,000 plus, never had any problems but alternators. I've beentold it needs 500 psi at the ICP, what doyou mean at the HPOP? I'm good with the older diesels but I'm determine to beet this one. 4 months down now from waiting on parts. Thanks for any help. I also was read that the starting rpm is to low and should be over 200rpm but ford specs calls for 185 rpms.

Just meant output of the HPOP should be over 500 to fire, my bet would be the HPOP itself very common on this year and given your mileage its very likely. The 03's arent as susceptible to HPO leaks like the 05-07 years. i.e. no STC fittings or leaky stand pipes etc.

[roche837]

About the starting, if you got good charged batteries crank, crank, crank after any opening of the HPO system, these trucks are a bear to start after the system has be opened. 05-07 trucks typically start alot sooner usually within 3 extended cranks, the 03-04's ive heard up to 10 extended cranks,

[Luis1PR]

I have been cranking until the starter starts to smell over and over and no luck.

[dhanna6powerstroke]

Originally Posted by Luis1PR

I have been cranking until the starter starts to smell over and over and no luck.

Most likely with your mileage, the High Pressure Oil Pump or HPOP is junk. Probably needs a new starter now also.

[roche837]

^^^X2 on new HPOP and Starter, i killed my starter after i replaced my pump but it was old.

[kaya@bernhausen]

check that you're getting low side oil first. pull the filter, crank and see how quick the housing fills. if that looks good, suspect either a stuck ipr valve or hpop.
when you replaced the injector seals, you did the small ones with the snap rings at the top of the injectors, where the oil feed is, yes?
if so, what you want to do is install an air fitting to pressurize the hpo system. then duty cycle the ipr open and closed and watch your icp PID to make sure that the ipr is indeed opening and closing. if good, close the ipr and leave air line hooked up for 3 or 4 minutes and listen for any leaks in the hpo system. if no leaks are heard, pull the oil filter cap and listen for air entering the housing. if air is heard in the housing, it's backfeeding through the pump and the pump needs to be replaced.
if you don't hear any air leaks, ipr duty cycles fine, and you have low side oil volume, problem is almost certainly going to be the pump. if it is, while the pump is out, replace the icp sensor with a late unit. it's a lot easier to do now and if not leaking already, will be. the late ones never leak, fit just the same, and read the same as the early ones. if your icp sensor was leaking, replace the pigtail as well.