Another Rough Idle/Surging issue - Ford Powerstroke Diesel Forum
LinkBack Thread Tools Display Modes
post #1 of 1 Old 02-22-2013, 10:47 PM Thread Starter
Join Date: Feb 2010
Posts: 35
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
Another Rough Idle/Surging issue

I have been fighting this problem for about a year now. Truck is a 1995 model with less than 100k miles. The truck romps every time I start it for about 5 seconds. After that, it has a surging idle until it warms up. After it warms up, it idles consistently but slightly rough. Truck also seems to be louder than it used to be. Seems like it could be some injector knock coming from the #8 cylinder, but most people have told me it sounds normal. I'm stumped as to what else I can do. Here are the things I have done so far.

1. Rebuilt the fuel bowl/fpr with all new O-rings
2. New O-rings on the IPR
3. Had the Under cover valve harnesses replaced
4. Buzz Test was good
5. Cylinder Contribution Test was good
6. New Glow Plugs
7. Just had the oil Changed today
8. Cleaned EBP tube
9. Has no codes


1. Could crud built up in my mixing chambers in the fuel tanks cause this?
2. Could the MAP sensor cause this?
3. Should I just throw a brand new IPR at it?
4. ICP isn't leaking oil or throwing a code, should I get a new one anyway?

I hate throwing parts at it, but I've had it scanned and have no codes. I guess I'm more of a worry wart than most, but I'm worried about the life of my engine if I just continue to drive it as it is.
slimjim is offline  
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:


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
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode

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

For the best viewing experience please update your browser to Google Chrome