Diagnostic Help? - Ford Powerstroke Diesel Forum
LinkBack Thread Tools Display Modes
post #1 of 1 Old 04-23-2009, 08:32 PM Thread Starter
Powerstroke.org Fanatic
Join Date: Mar 2009
Location: Denton, Tx
Posts: 147
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
Diagnostic Help?

Ok I've tried searching and I can't seem to find anyone with the same problem. When I am driving at a constant speed, around 35-40mph and between 1300-1900 rpm, I notice a surging or hesitation feeling. I've read that it could be the UVC, IPR and the CPS (hasn't had the recall done yet). Well I'm pretty broke so I was hoping to get a little more diagnostic advice before I start swapping parts. I don't have access to a scan tool for free and I'm worried that if I keep driving it I'll make it worse. This just started happening this evening. The truck was warm as well. It only seems to happen when it's not underload or I'm not accelerating. My mods are a hypertech (old school) 50hp chip, MBRP 4" turbo back and the DIY Tymar with the 6637. I'm pushing 188k on mileage. Any ideas? Could the ICP plug cause this?

1999.5 F250 2wd Auto Crew Cab Long bed, 190k, 4" MBRP turbo back, DIY Tymar, 50hp old school hypertech chip, WW, HP oil crossover line, BTS trans done and installed,

1949 Willys Jeep resto
1942 Willys Jeep rock crawler
rooney77 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