Truck Running Strangely - Ford Powerstroke Diesel Forum
User Tag List

LinkBack Thread Tools Display Modes
post #1 of 3 Old 01-26-2007, 07:50 PM Thread Starter
Nuckin' Futz

Join Date: Jul 2006
Posts: 700
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks: 0
Thanked 1 Time in 1 Post
Feedback Score: 0 reviews
Truck Running Strangely

So ive had this problem since i bought the truck and never thought anything from it and i replaced the ICP thinking that it was what was causeing it. When the truck is warm/ after ive been driving it and have pulled into a parking spot and have it in park, the truck's idle wavers. It will sit at 650 rpms then bogs down and the rpms drop to about 630. The truck shakes pretty good and then it comes back up to above 650 rpms then drops back down again to 630 and it will continue to do this until i have put it in drive or reverse. I notice the drop on my Tach on the dash and on my Auxilary powertrain control module and in my oil pressure guage. It is annoying and like i said it has done this since i got the truck. My question is could it be the cam sensor. Since i have done many oil changes and Fuel filter changes since i got the truck i have ruled those things out...I changed the ICP and there are no codes other than the code thrown by my chip. The truck did this even before i any kind of programmer or chip so ive ruled this out. I don't know what it could be other than the cam sensor or the torque converter is messing with me but i have no tranny problems and my tranny temps rarely get above 160 degrees. So i need so one else to think about this for me because im pulling hair out trying to get the idle to stay constant at 650 which is where its supposed to be.
Turbodude is offline  
Sponsored Links
post #2 of 3 Old 01-26-2007, 08:01 PM
valdez_oilburner's Avatar
Join Date: Dec 2006
Posts: 59
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks: 1
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Mine does that too after running hard for a while. I wouldnt sweat it, it quits surging after some idle time.
valdez_oilburner is offline  
post #3 of 3 Old 01-26-2007, 08:11 PM
Compression Ignition Addict
sldghamr's Avatar
Join Date: Jan 2007
Location: Santa Rosa, CA
Posts: 2,026
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
i have a 96, mine does that as well. all too often, it'll idle rough after being hard on the throttle or being on the freeway for awhile. i wouldn't worry too much over it. just keep an eye on it.

if you see a light at the end of the tunnel, it's probably just a photon torpedo
sldghamr 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