Sudden Hard Miss, Rough Idle - Ford Powerstroke Diesel Forum
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 12-29-2006, 10:28 AM
Powerstroke.org Rookie
 

Join Date: Dec 2006
Posts: 10
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Sudden Hard Miss, Rough Idle

I Have An 2002 W/7.3, Ran Perfect, I Stopped And It Idled For About 5 Min. Started To Drive Off And It Surged, The Light Came On And Its Missing Bad. No Codes Show Up? Could This Be The Infamous Harness Connection At The Valve Covers ?
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2  
Old 12-29-2006, 12:42 PM
Powerstroke Techie

 

Join Date: Nov 2006
Location: Moses Lake, WA
Posts: 723
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
If your check engine light is on, there should be codes. But it definately sounds like under valve cover wiring harness came disconnected.
Reply With Quote Quick reply to this message
  #3  
Old 12-29-2006, 12:46 PM
ADMIN AND TECH


 

Join Date: Oct 2006
Location: winston salem north carolina
Posts: 9,242
Thanks: 0
Thanked 4 Times in 4 Posts
Feedback Score: 0 reviews
sounds like harness conection to me but its funny you dont have codes if scanner wil run injector electrical test f passes becaue you dont have any codes believe i would check fuel pressure next, no codes to me always leads me towards fuel issues if everything else checks out
Reply With Quote Quick reply to this message
  #4  
Old 01-14-2007, 03:46 PM
Compression Ignition Addict
 

Join Date: Jan 2007
Location: West Branch, MI
Posts: 319
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
check your fuel/water separator. take the fuel filter out and see if theres any build up in the bottom. take separator out and clean it. should clear up the rough idle and miss.
Reply With Quote Quick reply to this message
  #5  
Old 01-14-2007, 04:18 PM
International Threat
 

Join Date: May 2006
Location: Elkton, MD
Posts: 13,087
Thanks: 0
Thanked 6 Times in 4 Posts
Feedback Score: 1 reviews
Where did you get it scanned?
Reply With Quote Quick reply to this message
  #6  
Old 02-20-2007, 06:37 PM
Powerstroke.org Fanatic
 

Join Date: Feb 2006
Location: arizona
Posts: 114
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Im having the same problems. I start my truck and it begins to run perfect for the first 1-2 seconds, then it it runs really rough. I replaced the engine wiring harness and no change. fuel filter has fuel in it and a new filter(3000 miles) this started when I was just about to run out of fuel. What do you guys think? I have had this problem for about 6 weeks now. no power just nasty rough idle. I cant drive it this way and Im tired of driving my wifes f150.
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:
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 01:36 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