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

hpop questions

Thread Tools
 
Search this Thread
 
Old Jul 21, 2014 | 01:17 PM
  #1  
knutson28's Avatar
knutson28
Thread Starter
|
Freshman User
Joined: Aug 2012
Posts: 42
Likes: 0
From: Sioux Falls SD
hpop questions

Hey I got questions on my truck I went out of town this weekend and pulled a trailer with a loader on it and when I got on it it will stumble I have a SCT tunner on it and was monitoring the data for fuel and what I found is my ICP requested and ICP pressures were right on if I didn't push hard but if I did it would request over 3300 it wouldn't match it and start the stumble it will not build over 3300 my ipr % would get to 83 and that's it so my question is do I have a bad pump or IPR valve? Or tune ? New to 6.0s but love this truck lol
 
Reply
Old Jul 21, 2014 | 01:27 PM
  #2  
mustang_309's Avatar
mustang_309
Logistics Pro
20 Year Member
Joined: Dec 2004
Posts: 4,138
Likes: 7
From: South Weber, Utah
Originally Posted by knutson28
Hey I got questions on my truck I went out of town this weekend and pulled a trailer with a loader on it and when I got on it it will stumble I have a SCT tunner on it and was monitoring the data for fuel and what I found is my ICP requested and ICP pressures were right on if I didn't push hard but if I did it would request over 3300 it wouldn't match it and start the stumble it will not build over 3300 my ipr % would get to 83 and that's it so my question is do I have a bad pump or IPR valve? Or tune ? New to 6.0s but love this truck lol
What year is your truck, miles and mods if any?
 
Reply
Old Jul 21, 2014 | 02:06 PM
  #3  
npccpartsman's Avatar
npccpartsman
Hotshot
20 Year Member
Liked
Loved
Community Favorite
Joined: Dec 2003
Posts: 15,369
Likes: 121
From: Stuttgart, Ar
Club FTE Silver Member

If you're running a tune then return it to stock and recheck the parameters. Tunes can sometimes alter ICP numbers to fool the PCM.
 
Reply
Old Jul 21, 2014 | 03:38 PM
  #4  
knutson28's Avatar
knutson28
Thread Starter
|
Freshman User
Joined: Aug 2012
Posts: 42
Likes: 0
From: Sioux Falls SD
Its has 180xxx has 4 inch down 5 out other then the tunner stock and its 2003 I got it from a co worker when pulling his big camper it stall and not start wait 20 mins and off it goes till it stalled so I bought it knowing there was a issue I can't get it.to stall out and I can only get it to act up if I run a tune and its the can street tune he.never had the tunner in it I did that
 
Reply
Old Jul 21, 2014 | 04:26 PM
  #5  
mustang_309's Avatar
mustang_309
Logistics Pro
20 Year Member
Joined: Dec 2004
Posts: 4,138
Likes: 7
From: South Weber, Utah
Originally Posted by knutson28
Its has 180xxx has 4 inch down 5 out other then the tunner stock and its 2003 I got it from a co worker when pulling his big camper it stall and not start wait 20 mins and off it goes till it stalled so I bought it knowing there was a issue I can't get it.to stall out and I can only get it to act up if I run a tune and its the can street tune he.never had the tunner in it I did that
Return it to stock as previously mentioned and see if it still acts the same way under full throttle. What are the ICPV's at KOEO?
 
Reply
Old Jul 21, 2014 | 04:31 PM
  #6  
npccpartsman's Avatar
npccpartsman
Hotshot
20 Year Member
Liked
Loved
Community Favorite
Joined: Dec 2003
Posts: 15,369
Likes: 121
From: Stuttgart, Ar
Club FTE Silver Member

Another thing you need to check is fuel pressure, which will require a manual gauge.
 
Reply
Old Jul 21, 2014 | 08:04 PM
  #7  
knutson28's Avatar
knutson28
Thread Starter
|
Freshman User
Joined: Aug 2012
Posts: 42
Likes: 0
From: Sioux Falls SD
I will check v koeo tonight but with it stock she will run about 3300 3200 psi but that's what it requested
 
Reply
Old Jul 21, 2014 | 08:52 PM
  #8  
mustang_309's Avatar
mustang_309
Logistics Pro
20 Year Member
Joined: Dec 2004
Posts: 4,138
Likes: 7
From: South Weber, Utah
Originally Posted by knutson28
I will check v koeo tonight but with it stock she will run about 3300 3200 psi but that's what it requested
Being an 03' the ICP is always suspect and so is the HPOP, but it is always good to know what the fuel pressure is.
 
Reply
FTE Stories

Ford Trucks for Ford Truck Enthusiasts

story-0

10 Fords to Drive Before You Die

 Joe Kucinski
story-1

3 Best / Worst Features Of The 2025+ Ford Expedition

 Brett Foote
story-2

10 Ways Ford is LOSING to the Competition

 Joe Kucinski
story-3

Top 6 Best Deals Available on New Fords & Lincolns Right Now

 Brett Foote
story-4

This Hennessey Takes the Expedition Tremor's Off-Roading Capability to the Next Level

 Verdad Gallardo
story-5

Top 10 Fords at 2026 Carlisle Ford Nationals

 Joe Kucinski
story-6

3 Best / 3 Worst Parts of Modern Ford Ownership

 Brett Foote
story-7

10 Amazing Upgrades That Solve Common Ford Truck Owner Headaches

 Pouria Savadkouei
story-8

Every 2026 Ford Engine Explained

 Brett Foote
story-9

10 Ugly Ford Trucks That We Still Kinda Love

 Joe Kucinski
Old Jul 21, 2014 | 09:01 PM
  #9  
knutson28's Avatar
knutson28
Thread Starter
|
Freshman User
Joined: Aug 2012
Posts: 42
Likes: 0
From: Sioux Falls SD
OK where do I check fuel pressure at and is it low side or high side I'm checking ? And. If I do have to do a pump do I go stock or is there anything better and thanks for the help guys
 
Reply
Old Jul 21, 2014 | 09:35 PM
  #10  
mustang_309's Avatar
mustang_309
Logistics Pro
20 Year Member
Joined: Dec 2004
Posts: 4,138
Likes: 7
From: South Weber, Utah
Originally Posted by knutson28
OK where do I check fuel pressure at and is it low side or high side I'm checking ? And. If I do have to do a pump do I go stock or is there anything better and thanks for the help guys
I have heard a lot of good about the dieselsite HPOP and while more expensive than OEM they are much more reliable, the OEM remans are a crap shoot and guys have gotten them bad out of the box, http://www.dieselsite.com/2003-20046...lpumphpop.aspx If it were mine I would go with the slightly higher than stock output one.
 
Reply
Old Jul 21, 2014 | 10:53 PM
  #11  
Yahiko's Avatar
Yahiko
FTE Remembers
10 Year Member
Liked
Loved
Community Favorite
Joined: Apr 2012
Posts: 27,307
Likes: 549
From: Spanaway
Originally Posted by knutson28
OK where do I check fuel pressure at and is it low side or high side I'm checking ? And. If I do have to do a pump do I go stock or is there anything better and thanks for the help guys
Smart guy asking questions and listing to the advise given.
I think your going to do well and please keep us informed.


Also Does the SCT allow you to look at all the data that the
SGII does?
ScanGaugeII : Linear Logic - Home of the ScanGauge

Sean
 
Reply
Old Jul 22, 2014 | 01:20 PM
  #12  
knutson28's Avatar
knutson28
Thread Starter
|
Freshman User
Joined: Aug 2012
Posts: 42
Likes: 0
From: Sioux Falls SD
No I'm not using the SCT for data logging I have a snap on ethos I'm a diesel tech but I work at a kenworth dealer so don't see pickups lol but I have .19 volt koeo on ICP back to stock tune and used brakes driving down the highway to load it and it will request 3626 and it will stay pretty close I would say its +-25 psi and my inj% is 75-76% I will check what fuel pressure on the low side tonight
 
Reply
Old Jul 22, 2014 | 08:22 PM
  #13  
Yahiko's Avatar
Yahiko
FTE Remembers
10 Year Member
Liked
Loved
Community Favorite
Joined: Apr 2012
Posts: 27,307
Likes: 549
From: Spanaway
Originally Posted by knutson28
No I'm not using the SCT for data logging I have a snap on ethos I'm a diesel tech but I work at a kenworth dealer so don't see pickups lol but I have .19 volt koeo on ICP back to stock tune and used brakes driving down the highway to load it and it will request 3626 and it will stay pretty close I would say its +-25 psi and my inj% is 75-76% I will check what fuel pressure on the low side tonight
Having access to a good scan tool makes life so much less of
a pain when it comes to diagnostics.

Myself I have the SCT,SGII Snap-on Solus and IDS with VCM.
Little bit of over kill.


Sean
 
Reply
Old Jul 22, 2014 | 10:30 PM
  #14  
knutson28's Avatar
knutson28
Thread Starter
|
Freshman User
Joined: Aug 2012
Posts: 42
Likes: 0
From: Sioux Falls SD
Lol in my world over kill is good when it comes to tools but I checked low side tonight and koeo it will go to 65 and start it stays at 65 went and beat the **** out of it still stayed at 65 -+5 psi so idk what is going on ..... i sure wish I could find something failed or failing so I can get it fixed lol
 
Reply
Old Jul 23, 2014 | 05:27 AM
  #15  
npccpartsman's Avatar
npccpartsman
Hotshot
20 Year Member
Liked
Loved
Community Favorite
Joined: Dec 2003
Posts: 15,369
Likes: 121
From: Stuttgart, Ar
Club FTE Silver Member

What or whose tunes are you running?
 
Reply



All times are GMT -5. The time now is 05:42 AM.

story-0
10 Fords to Drive Before You Die

Slideshow: 10 Fords to drive before you die.

By Joe Kucinski | 2026-06-22 14:29:44


VIEW MORE
story-1
3 Best / Worst Features Of The 2025+ Ford Expedition

The latest Expedition is quite popular, but it certainly isn't perfect.

By Brett Foote | 2026-06-22 14:23:19


VIEW MORE
story-2
10 Ways Ford is LOSING to the Competition

Slideshow: 10 ways Ford is losing to the competition

By Joe Kucinski | 2026-06-15 09:52:01


VIEW MORE
story-3
Top 6 Best Deals Available on New Fords & Lincolns Right Now

Some great targets in today's expensive world.

By Brett Foote | 2026-06-15 09:35:19


VIEW MORE
story-4
This Hennessey Takes the Expedition Tremor's Off-Roading Capability to the Next Level

Slideshow: The VelociRaptor Expedition gains a lift, upgraded suspension, Brembo brakes, and trail-ready equipment while retaining the stock 440-horsepower EcoBoost V6.

By Verdad Gallardo | 2026-06-12 11:01:55


VIEW MORE
story-5
Top 10 Fords at 2026 Carlisle Ford Nationals

Slideshow: Top 10 Fords at 2026 Ford Nationals

By Joe Kucinski | 2026-06-09 11:10:08


VIEW MORE
story-6
3 Best / 3 Worst Parts of Modern Ford Ownership

Based on years of owning multiple modern Ford products.

By Brett Foote | 2026-06-09 10:53:36


VIEW MORE
story-7
10 Amazing Upgrades That Solve Common Ford Truck Owner Headaches

SPONSORED: From muddy boots to rain-soaked cargo, these upgrades address some of the most common frustrations Ford truck owners face every day.

By Pouria Savadkouei | 2026-06-08 18:50:34


VIEW MORE
story-8
Every 2026 Ford Engine Explained

Here's everything you need to know about every Ford engine available for the 2026 model year.

By Brett Foote | 2026-06-05 12:58:01


VIEW MORE
story-9
10 Ugly Ford Trucks That We Still Kinda Love

Slideshow: 10 ugly Ford trucks that we still kinda love.

By Joe Kucinski | 2026-06-03 09:51:16


VIEW MORE