Rare rought idle and drive - Ford Powerstroke Diesel Forum
User Tag List

 
LinkBack Thread Tools Display Modes
post #1 of 5 Old 05-08-2013, 07:29 AM Thread Starter
Powerstroke.org Rookie
 
Join Date: Feb 2013
Posts: 3
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Rare rought idle and drive

Hello everyone,

I've been checking on this site for quite some time and it has been of great help. THANKS!

I have a 2000 F-350 CC with 77k miles that I bought last year. Salvage truck.
Anyways fastforward the cabin has been fixed now and the truck is up and running.

But it has a rough idle, it does NOT feel as if it is missing a cylinder completely, just shakes a lot, really annoying.
Also driving you can clearly feel it vibrating sort of.
The thing is when you let it idle for minutes all of a sudden it goes
SMOOTH, idles just perfect and then goes back to rough idle.
I you leave the truck idling for an hour, it will keep going smooth/rough on and off.

Things I've done so far :

Buzz test : was good.
Checked the UVCH, they were full in, so also good I guess.
Oil is brand new
Read the codes, no codes
During live data stream I could see though that the water temp was reading -40, I know that's not good, haven't had a chance to get one yet but don't know if it can influence the idle/drive like that.

No white or black smoke whatsoever.
Other than this, the truck feels OK powerwise.

Any help or suggestions greatly appreciated
Onig is offline  
Sponsored Links
Advertisement
 
post #2 of 5 Old 05-09-2013, 09:25 PM
Powerstroke.org Fanatic
 
Jakeman711's Avatar
 
Join Date: Mar 2013
Posts: 139
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks: 0
Thanked 1 Time in 1 Post
Feedback Score: 0 reviews
Wow, that could be numerous things. Could be a CPS. It is a cheap try. If you decide to try this only buy this sensor from Ford or International.

[SIGPIC]

99.5 F-250 4x4, 7.3 PS
Engine:
State 1 injectors from Rosewood, GT38 (van) turbo, S&B intake, Comp Cam's 910 valve springs, Smith Brothers pushrods, AIH delete TS 6-position chip. Pyro.

Body:
2005 front end conversion, 2008 tailgate, taillights, and rear bumper.

Future Mods:
Edge CTS monitor, and 4" Exhaust (Manufacturer to be determined).
Jakeman711 is offline  
post #3 of 5 Old 05-13-2013, 06:23 PM Thread Starter
Powerstroke.org Rookie
 
Join Date: Feb 2013
Posts: 3
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Quote:
Originally Posted by Jakeman711 View Post
Wow, that could be numerous things. Could be a CPS. It is a cheap try. If you decide to try this only buy this sensor from Ford or International.
Problem solved, it turned out to be a damaged cooling fan.

Thanks for checking
Onig is offline  
post #4 of 5 Old 05-13-2013, 07:00 PM
Premium Member
 
Macon's Avatar
 
Join Date: Jun 2012
Posts: 3,804
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks: 3
Thanked 22 Times in 22 Posts
Feedback Score: 0 reviews
Quote:
Originally Posted by Onig View Post
Problem solved, it turned out to be a damaged cooling fan.

Thanks for checking
That's just funny. Of all the things it could have been, that actually fits the problem so perfectly it's ridiculous. How'd you break it? Sounds like it was missing a fin. Glad you got it sorted out, and thanks for posting up the fix.

2002 F250 CCSB 4x4
PHP Phoenix, John Woods VB, NUC bypass, 6637

"No country can be called free which is governed by an absolute power;
and it matters not whether it be an absolute royal power or an absolute
legislative power, as the consequences will be the same to the people."

--Thomas Paine, Four Letters on Interesting Subjects, 1776
Macon is offline  
post #5 of 5 Old 05-14-2013, 06:17 AM Thread Starter
Powerstroke.org Rookie
 
Join Date: Feb 2013
Posts: 3
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Ridiculous right, man I feel so dumb not noticing it before.
Just finished testing the bowl pressure and was just starring and listening to the engine idle....when suddenly it got my attention.

Well its ok now


thanks
Onig is offline  
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:
OR

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
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