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6.0L Power Stroke Diesel 2003 - 2007 F250, F350 pickup and F350+ Cab Chassis, 2003 - 2005 Excursion and 2003 - 2009 van

won't start when warm

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Old Oct 15, 2011 | 10:12 PM
  #16  
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Post #3 of this thread:

won't start when warm - Ford Powerstroke Diesel Forum
 
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Old Oct 15, 2011 | 10:47 PM
  #17  
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Originally Posted by m-chan68




And he even had a Code to go along with it

Why would a guy want to leave that Important info out ??????????

I guess he is playing the field till he gets an answer that he likes
 
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Old Oct 15, 2011 | 11:08 PM
  #18  
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Originally Posted by BLADE35
And he even had a Code to go along with it

Why would a guy want to leave that Important info out ??????????

I guess he is playing the field till he gets an answer that he likes

Not sure what you mean. I did post the code on the first page of this thread.

So far I have unplugged the ICP to see if that would do it. Really trying to understand the issue without having to hopefully tear the whole engine apart.

I really do appreciate the help so far.
 
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Old Oct 15, 2011 | 11:14 PM
  #19  
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Originally Posted by steventothemax
I really do appreciate the help so far.
Benny didn't see the code post more than likely.

Go with m-chan's advice. He knows his stuff. He's a well respected Ford tech. As he said, unfortunately, but it sounds like it's time to dig in.

As has been pointed out, twice now, you need a way to check HPO pressure. If you don't have a way, then you need to pull the HPOP cover off.

A Scangauge II for ~ $160 will do the trick.

The advice is solid. It's time to move on and get 'er done.
 
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Old Oct 15, 2011 | 11:18 PM
  #20  
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Originally Posted by steventothemax
Thanks guys. Especially nice to hear that it shouldn't be the hpop

Throwing code p2291 ICP too low
Sorrey my bad I missed it

I would take M-chain advice

cuz it going to be hard to pressure test an 03 with air plus it should be tested with air while hot
 
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Old Oct 15, 2011 | 11:29 PM
  #21  
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THanks.

Sorry for being so clueless. So the scan gauge will forgo the neccessity of taking the hpop cover off?
 
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Old Oct 15, 2011 | 11:32 PM
  #22  
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The ICP and IPR duty cycle readings can be used to confirm that you have a HP oil issue. When it is confirmed, at that point it is time to "dig in".

That being said, m-chan68 certainly has the knowledge and experience to tell you that (based on your symptoms and code) it is warranted to begin the process of removing the cover - so I would listen to him.
 
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Old Oct 15, 2011 | 11:32 PM
  #23  
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Originally Posted by BLADE35
Sorrey my bad I missed it

I would take M-chain advice

cuz it going to be hard to pressure test an 03 with air plus it should be tested with air while hot
OK maybe I'm missing something. I thought the HPOP cover would be completely buried in the engine making it difficult to get to when hot. Is this maybe a little easier than I thought?

I'll try a little research on the subject.
 
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Old Oct 15, 2011 | 11:36 PM
  #24  
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Originally Posted by steventothemax
Sorry for being so clueless. So the scan gauge will forgo the necessity of taking the hpop cover off?
That, my friend, is a loaded question. The Scangauge will tell you of you are getting HPO pressure or not. The motor needs 500 PSI to start. If you are not getting pressure, you take off your HPOP cover. If you are, them you just proved a Ford Senior Master Tech wrong, and then you're really up the creek. That was a little humor. You're not really up the creek, because then we'll have to find out why you have pressure but not starting.

Once you get the Scangauge, if you decide to go that route, then it will need to be setup to monitor the pressure and IPR valve readings. An easy task.

This is a video of an 2006, but the HPOP cover is in the same location on your truck.

http://www.youtube.com/watch?v=EBnBTiKV7K8
 

Last edited by NewToDiesels; Oct 16, 2011 at 12:49 PM. Reason: corrected improper PSI needed to start
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Old Oct 15, 2011 | 11:40 PM
  #25  
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To access and remove the high pressure oil pump and cover on a 2003 engine requires intake manifold and EGR cooler removal, due to the rear crossover on the intake that is exclusive to 2003 model years.
 
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Old Oct 15, 2011 | 11:43 PM
  #26  
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The minimum pressure to start is 500 psig.

Also, I usually think of "cranking" as the engine just turning over (no fire or start) - just through the starter (which your engine can do w/ zero HPO pressure).
 
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Old Oct 15, 2011 | 11:44 PM
  #27  
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Originally Posted by m-chan68
To access and remove the high pressure oil pump and cover on a 2003 engine requires intake manifold and EGR cooler removal, due to the rear crossover on the intake that is exclusive to 2003 model years.
Forgot about that rear crossover on the 03's. Thanks for reminding me Sir.

That means more work for the OP, but the video at least shows you where it is.
 
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Old Oct 15, 2011 | 11:47 PM
  #28  
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Originally Posted by bismic
The minimum pressure to start is 500 psig.

Also, I usually think of "cranking" as the engine just turning over (no fire or start) - just through the starter (which your engine can do w/ zero HPO pressure).
I thought I remember a prior post by one of the techs stating that 800 PSI was needed to fire injectors and 500 PSI to run. Sorry, I stand corrected.

Cranking is a poor choice of words now that you mention it...
 

Last edited by NewToDiesels; Oct 16, 2011 at 12:27 AM. Reason: removed the word crank and substituted "fire injectors" argh...
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Old Oct 16, 2011 | 12:10 AM
  #29  
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[quote=NewToDiesels;
There is no oil pressure until the motor is cranked.
 
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Old Oct 16, 2011 | 12:50 AM
  #30  
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Originally Posted by cheezit
you need 500 psi to start or .8v.
Between Mark and cheezit, I definitely do stand corrected. Appreciate the correction. Tomorrow I plan to start my truck while cranking it to get my HPO pressure above 500 PSI, and then head off to church in my shiny truck.
 
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