OK, another No Start problem.

I have a 2003 F 350 crew cab that I have had for 3 years. When I first purchased the truck, I did the VC9 flush and Cat EC1 coolant plus coolant filtration/EGR delete. I also did ED's FICM repair and Atlas tune.

Never had a problem with it....till last week when it died in my driveway I plugged my torque app in and I got two codes; P2291/P2623 ICP too low engine cranking ( I got under 200 psi) and ICRP open circuit ( I got 83.9%)

I jumped into my truck and pretty much a start and go. It died Then would not start

FICM - 48v
FICM Sync ( never used till today) read 0, not 1 but I have no codes relating to cam sensor and probably a refresh issue.
ICP = just under 200 psi engine cranking. Should be 500 psi
IRP = 83.9%

This tells me i have a leak in my system somewhere. Where? I suspect the ICP R as from what I've read is that on the 2003-04 6 liters, these two codes are most commonly a plugged ICP regular from the screen.

Any way I can diagnose this is not my HPOP, hoping it's not my HPOP, I'm in the middle of moving/selling our home.

Any help, thoughts or suggestions would be appreciated

Thank you all!!!

 

Pull the IPR and check the screen. If it's clean and not sucked into the valve. Pull the plug on the ICP under the turbo and try, if that doesn't work.. it's the HPOP. You don't have the STC fitting or dummy plugs and standpipe like the 2004.5 trucks do.

 

Thanks for the reply. I'm a bit unfamiliar with what you said regarding ........Pull the plug on the ICP under the turbo and try, if that doesn't work.. it's the HPOP. You don't have the STC fitting or dummy plugs and standpipe like the 2004.5 trucks do.

What and where is the plug on the ICP under the turbo? What am I pulling and looking for here?

What is the STC fitting or dummy plugs? I kind of remember the stand pipe on my oil filter...right? Kind of a plastic thing that twisted up and out. Hell, it's been over 3 years since I touched the truck and ...well, i've always been a gasser guy, so diesels are a bit unfamiliar to me

Any help is greatly appreciated

I do suspect my ICP regulator screen from what I've read....sure hope it's just that!

Thank you!

 

It's just a difference in the plumbing of the HPO system. The early trucks had a more reliable HPO system, except for the pump.

You need to remove the IPR valve and inspect the screen on the end. It's not in a very convenient location and can be a PIA to get at. The ICP sensor is also in the same general location.

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I remember seeing the IRP valve when I did the EGR delete/new oil cooler and such. I recently ordered the special socket for the IPR valve removal....should be here in a few days. Once I remove the IPR valve, inspect the screen, is there any other place I need to inspect in the system before I replace the IPR?

I did see someone replace the screen after they used a 6mm bolt, depressed the valve and flushed it with ...I'm guessing starter fluid?

How should I flush the IPR so I do not have to replace it? Where are the O rings on the inside or outside? From youtube, it looks like they all are on the outside, I'm not sure. And since I have a P2623 code = IPR reg circuit = OPEN, is the IPR bad and need to be replaced?

Thank you guys for the help!!!

 

He is working on an 06 but talks about the IPR.

 

By those two codes it does sound like a stuck IPR

From my notes

P2623 IPR Injector Control Pressure Regulator Circuit Open circuit, short to ground, IPR stuck


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I agree, sounds like the IPR valve. I guess it's time to change the filter on my coolant filtration system in addition to cleaning the IPR and changing the screen....I'm hoping to find a broken or clogged IPR screen so I can at least come to a conclusion of said current no start problem.


My IPR tool should be here on the 6th...hurry up and wait


Thanks everyone for the help!


I'll keep ya posted!

 

OK, here is what I found. My IPR was a PITA to pull! I had to pull the FICM bracket off just to get enough room for my hand to manipulate the ratchet! Anyway, after pulling the IPR, The screen was busted and it had some grey/green gel like substance all over the screen. I"ve gotta be honest, I"m a bit concerned as I have heard man horror stories about injector problems with our 6 liters and now I see some sort of green/grey gel on my IPR....It really worries me and makes me wonder ....WHY. WHY after all of my efforts do I still have some questionable gel like substance in my fuel system? I always use diesel kleen and once an year I use Hot shot fuel treatment. My last oil change, I used the Hot Shot Oil treatment. After seeing this krud on my IPR, I'm worried if any passed into my injection system and what kind of problems I may foresee??? Will the krud pass through or will I now have some injector problems? ... Last year, I noticed that when my truck was really cold in the winter time, I was experiencing "stiction" for the first 1/2 of run time. Then, it would go away. I did an oil change from the Rotella T5 to T6 and the stiction problem resolved. I"m now kind of freaking out, I have done everything I have read here to avoid fuel related problems concerning the 6.0.

I purchased the truck 3 years ago with 112K miles, I now have 137K on her. When I purchased the truck, I did a VC9 flush and replaced the coolant with distilled H20 and I ran pure distilled H20 for 2 months till I found some CAT EC1. I put the EC1 in my coolant and replaced 3 1/2 liters of distilled h2o with the new EC1. I also did the FICM repair with a 40 hp tune from ED. I also replaced the oil cooler, EGR delete and I did a coolant filtration system. I did all of this to avoid the dreaded 6 liter problems and with this gel like substacne on the IPR...I"m concerned! After my efforts I think I"m going to stay away from the simple screen replacement and just purchase a new IPR as it was a PITA to remove!

Any ideas of the cause of the plug in my IPR???? Am I in OverKill mode with purchasing a new IPR instead of replacing the screen?

Thanks everyone!

 

Sounds like the shades of a Dorman oil cooler to me!

 

Your IPR is for oil, not fuel. No fuel or additive you added to fuel passes thru the IPR, it's all oil.

Don't waist your money on a new IPR, change the screen, clean the IPR and put it back in... no need to spend $270 for nothing. Then change your oil, T6 5w-40 Rotella, and a new filter, Motorcraft/Racor, make sure your cap is OEM as well.

Run it a bit and see what happens.

What was the oil cooler you used... OEM and OEM gaskets?

 

OK, I changed my mind. I found some sediment in the IPR. I flushed it and found a green piece.....kind of worries me as it kind of looks like a small piece of an Oring?????? Anyway, gonna buy an o ring kit and go from there.

 

I got my new Oil cooler from sinsiter...wait, not sure on that.....hang on. Performance Machine is where i got my oil cooler and coolant filtration system. Please tell me I do not need a new oil cooler Please. If so, well, I'm moving and who knows if I'm headed to an emission testing area. If so, i'm gonna have to get an EGR, so I may be doing another oil cooler? What do ya all think?

My oil is Rotella T6. I was running T5 till 2 years ago when I was having stiction problems. Since the change to T6, no stiction I hope I do not need a new oil cooler!

 

what was the brand... Dorman or Ford or Dorman gaskets or OEM gaskets..???

 

Not sure what brand I got. I do known that I purchased it through thoroughbred diesel via my email, yet my paperwork says performance machine.?????

Also, When I cleaned the IPR, I found a piece of screen and I also found what I thought was a small piece of green oring or sludge. Also.... There was a bit of black fleks of what..I don't know. Not a whole lot, actually just a small amount of black fleks. I fear that i got one of the lesser valued oil coolers? Not sure. But if my luck would have it, when we do move and we are in a emmission testing area, I"ll have to put a new EGR cooler in and then...I'll put a new oil cooler in.