bad ICP,HPOP leak, or bad HPOP - Ford Powerstroke Diesel Forum
Please Visit our Site Sponsors is the premier Diesel Truck Forum on the internet. Registered Users do not see the above ads.
LinkBack Thread Tools Display Modes
Old 01-23-2009, 08:43 AM Fanatic

Join Date: Jan 2008
Location: Glasgow,MT
Posts: 118
Thanks: 1
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
bad ICP,HPOP leak, or bad HPOP

I was playing with my live link again and noticed that my ICP pressure was lower than it has been. I used to be able to see 1000 PSI, but now it wouldn't go past 950. And I know that is low, it's been that way since i got it, but have been waiting to do everything when I take the truck apart and do studs. but it might be awhile. so is this a leak that would be easily fixed or is it even possible for it to leak that much? and I also thought the injectors don't fire until 500 PSI, but mine starts and idles at 210 PSI , or is that just the 7.3. ICP duty cycle goes from 17% at idle to 85% past half throttle and stays there. i don't think it is the sensor because it stays pretty consistant, and the truck runs, doesn't like to start once warm, but runs. Any wisdom on this?
Reply With Quote Quick reply to this message
Sponsored Links
Old 01-26-2009, 08:59 AM
Compression Ignition Addict

Join Date: Dec 2007
Location: IA MN SD
Posts: 233
Thanks: 0
Thanked 1 Time in 1 Post
Feedback Score: 0 reviews
I think 85% is wide open on the ICP. You shouldn't see that. A small leak is probably the cause. I'd initially suspect a seal at the top of a injector, but that's just a guess.

Take a look at this article. It might help get you started.. LINKDiesel Technician Society
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 08:20 AM.

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.