6.0 surging idle - Ford Powerstroke Diesel Forum
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.
Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 08-13-2011, 01:48 PM
Premium Member
 

Join Date: Nov 2008
Location: NWI
Posts: 909
Thanks: 0
Thanked 1 Time in 1 Post
Feedback Score: 0 reviews
6.0 surging idle

As the title says, my truck has a intermittent surge in the idle. Idle jumps up 50-100 rpm. Sometimes at a stoplight in gear and truck wants to lunge forward. All systems check out except the FICM. (44-46v) on cold start up. Goes up to 48v occasionally. Brand new (reman) injectors. Brand new icp sensor and pigtail. Truck is running 100% better than a week ago prior to injectors. Idle is extremely smooth and plenty of low end and high end power. Engine is running amazing! Just this stupid idle surge. I have the 58v FICM coming from swamps. Should be here monday. Do yall think the FICM might help with this surge? My only other thought at this point is IPR. ICP and IPR duty cycle both check out. I'm hopeing the FICM will solve this and I'll be done spending money for a while. Any thoughts or suggestions? Thanks!
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2  
Old 08-28-2011, 08:32 AM
Premium Member
 

Join Date: Nov 2008
Location: NWI
Posts: 909
Thanks: 0
Thanked 1 Time in 1 Post
Feedback Score: 0 reviews
Ok, engine is still surging intermittently. This morning it did it for the first time in a week. Seems to be getting more frequent. I know everyone says if your HPOP goes, it just goes with no sign. I am stumped. HPOP is my only other thought. I watch the ICP and it flucuates as the idle surges. The other issue that I've had since I've owned this truck, is it starts differently ever time I start it. Sometimes it fires up quick, sometimes it rolls into a run. Hard to explain. Not a long crank but it starts and kind of stumbles up to idle. Now when I load my xtreme race tune it does not do this. It fires up very quickly in a snap. I do notice that the ICP is quite different when I run this tune. Recently I have installed 8 injectors, new harness, FICM, ICP sensor and pigtail and IPR valve. I know the 03 HPOP is known for failure more than others. Does it act differently when its about to fail? I would like to order the billet adrenaline stock output HPOP from dieselsite if this is the issue. Any input is appreciated. Thank you!
Reply With Quote Quick reply to this message
  #3  
Old 09-06-2011, 11:11 AM
Powerstroke.org Rookie
 

Join Date: Jan 2010
Posts: 7
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
my 04 does the same thing and now has intermittent idle drop when clutch engaged and has died a couple of times.... any help out there?
Reply With Quote Quick reply to this message
  #4  
Old 09-06-2011, 06:40 PM
Powerstroke.org Fanatic
 

Join Date: Sep 2010
Posts: 106
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
My 03 has the same idle symptoms when warm.
Reply With Quote Quick reply to this message
  #5  
Old 09-06-2011, 06:54 PM
Premium Member
 

Join Date: Nov 2008
Location: NWI
Posts: 909
Thanks: 0
Thanked 1 Time in 1 Post
Feedback Score: 0 reviews
Mine hasnt done it in over a week. I'm just not going to give it anymore thought until it causes real issues. Other than this, mine is running perfect. I'm certain that its high pressure oil related. My next reliability upgrade will be the adrenaline stock output HPOP. Just don't have $1,000 to spend right now. Maybe this winter sometime.
Reply With Quote Quick reply to this message
  #6  
Old 09-12-2011, 04:46 PM
Powerstroke.org Fanatic
 

Join Date: Sep 2010
Posts: 103
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
I have an 03 and it does the exact same thing. I was thinking it might be the fuel pump spring but I'm not sure. I am going to throw one at it and see if it helps
Reply With Quote Quick reply to this message
  #7  
Old 09-12-2011, 05:00 PM
Member
 

Join Date: Jul 2008
Location: warren, ohio
Posts: 60
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
my vote is for the ICP! my truck did the same thing. big pain the change. went at it from the bottom and had to remove the heat sheild on the back of the engine. Oil from the turbo drain tube soaked it!
Reply With Quote Quick reply to this message
  #8  
Old 09-12-2011, 05:02 PM
Premium Member
 

Join Date: Nov 2008
Location: NWI
Posts: 909
Thanks: 0
Thanked 1 Time in 1 Post
Feedback Score: 0 reviews
I doubt thats the cause. Though its a good Idea to do anyway. You should check your fuel pressure before and after and see what the difference is. I have the updated (blue) spring installed and my fuel pressure reads 64psi at idle. Never drops below 60psi even at WOT.
Reply With Quote Quick reply to this message
  #9  
Old 09-12-2011, 05:06 PM
Premium Member
 

Join Date: Nov 2008
Location: NWI
Posts: 909
Thanks: 0
Thanked 1 Time in 1 Post
Feedback Score: 0 reviews
Sorry, should have quoted bigbadry on that reply. Flipp29, I think you are right in thinking its high pressure oil related. ICP often is the culprit on this one.
Reply With Quote Quick reply to this message
  #10  
Old 09-12-2011, 05:10 PM
Premium Member
 

Join Date: Nov 2008
Location: NWI
Posts: 909
Thanks: 0
Thanked 1 Time in 1 Post
Feedback Score: 0 reviews
But our 03's have the early HPOP design. So thats always a possibility also. Especially after you've replaced everything and it still does it. Knock on wood, going on two weeks here since its last done it and running perfect.
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

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:
If you do not want to register, fill this field only and the name will be used as user name for your post.
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

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 09:41 AM.


Powered by vBulletin® Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Search Engine Optimization by vBSEO 3.6.1
Garage Plus, Vendor Tools vBulletin Plugins by Drive Thru Online, Inc.

vB.Sponsors