IPR HPOP Question/Guidance - Ford Powerstroke Diesel Forum
Please Visit our Site Sponsors
6.0L Problems Forum Having Trouble? Post here

Powerstroke.org is the premier Diesel Truck Forum on the internet. Registered Users do not see the above ads.
LinkBack Thread Tools Display Modes
Old 09-30-2013, 02:22 PM
Powerstroke.org Rookie

Join Date: Sep 2013
Posts: 1
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
IPR HPOP Question/Guidance

2003 Ford Excursion 6.0 154k miles. My son was driving the X when it died, crank no start. I read hours of post and the crank no start guide. I first checked FICM 48.5 KOEO then 18V while cranking. Figured that was the problem and sent it off to FICMREMPAIR.com. Put repaired FICM in, still crank no start. Checked FICM again, now 48.5 at KOEO and while cranking. Went out an bought scanguage II, IPR at 85%, 200 ICP, FICM Sync yes, so I am assuming IPR, HPOP or leak somewhere. Fuel fills the filter quickly and Oil fills oil filter housing within a few seconds of cranking and shows reg level on dummy guage. My question before tearing into unfamiliar territory is can the IPR be my problem without it being HPOP, or if the IPR is bad the HPOP is bad as well? The ICP was replaced less than a month ago. Any guidance or suggestions on this would be greatly appreciated.
Reply With Quote Quick reply to this message
Sponsored Links
Old 09-30-2013, 05:00 PM
Compression Ignition Addict

Join Date: Dec 2008
Location: port arthur texas
Posts: 4,215
Thanks: 1
Thanked 62 Times in 58 Posts
Feedback Score: 0 reviews
You could have a bad ICP or IPR or HPOP. or a combination of any of them.

First thing to try is unplugging the ICP. The Pcm will use a defaut value of about 650 psi.to start. It takes a reading of 500 psi for the pcm to tell the ficm to fire the injectors, if the hpop is working correctly it should start then you know the icp was bad.

The IPR works by bleeding off pressure back to the base. The pcm will not command the Ipr closed more than 85% to keep the pump from blowing seals.
There is a test method of applying 12v directly to the ipr but most instructions say no more than 15 seconds at a time.

At inital start the pcm will command the ipr to 84/85% to give full flow/pressure to the oil rails then after staring will decrease.

Since the ipr is being commanded to 85% I think the icp is bad or a leak in the HP oil system.
You will need to do the air pressure test outlined in the no start guide.
Reply With Quote Quick reply to this message
Old 09-30-2013, 05:53 PM
Premium Member


Join Date: Sep 2008
Location: Oakbank, Manitoba
Posts: 3,279
Thanks: 8
Thanked 111 Times in 104 Posts
Feedback Score: 0 reviews
It is interesting to note a potential double failure. It may not have been the FICM that caused the initial dead engine syndrome, but it may have happened soon there-after.

The IPR could be the problem, but it is only one possibility. The air test will be fairly definitive if done correctly.
Reply With Quote Quick reply to this message
Sponsored Links

Quick Reply

Register Now

In order to be able to post messages on the Ford Powerstroke Diesel Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:
What state or province do you live in?
Security Question
*Required, this field is not shown to others. Enter the last two characters of the word "Powerstroke"
Security Question #2
*Required, this field is not shown to others. "While balancing on a piece of wood, two inches by four inches known as a 2x4, john and his friend sally both spotted a dalmatian inside a truck with sirens, headed to put out a fire. State the animal mentioned in the sentence above."
Please select your insurance company (Optional)


Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.

Thread Tools
Display Modes

Posting Rules
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

All times are GMT -8. The time now is 01:41 PM.

Powered by vBulletin® Copyright ©2000 - 2015, Jelsoft Enterprises Ltd.
Search Engine Optimization by vBSEO 3.6.1
Garage Plus, Vendor Tools vBulletin Plugins by Drive Thru Online, Inc.