1 UVCH unplugged truck runs better. - Ford Powerstroke Diesel Forum
User Tag List

 
LinkBack Thread Tools Display Modes
post #1 of 4 Old 01-13-2011, 04:28 PM Thread Starter
Powerstroke.org Rookie
 
Join Date: Aug 2010
Posts: 6
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
1 UVCH unplugged truck runs better.

94' f250 7.3 powerstroke.



Ok few weeks ago i started my truck and it started fine, ran fine. after warm up i started going forward and it started running like **** and threw the CEL. Ive been reading on here about the UVCH. Everyone on here with that issue seems to have no change when it is unplugged or the truck dies. Mine started running better and the CEL went out when i unplugged drivers front plug. Its not 100% but alot better than with it plugged in.

Anyone know how to diagnose this problem or what it is?

Drivers side bank had oil in the UVCH plugs.

Last edited by 94stroke; 01-13-2011 at 04:28 PM. Reason: added info
94stroke is offline  
post #2 of 4 Old 02-09-2011, 05:14 AM
Powerstroke.org Rookie
 
EPA Special's Avatar
 
Join Date: Oct 2010
Location: Mulberry (Near Lakeland)
Posts: 19
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
my truck did the exact same thing. what you need to do now is remove your valve cover and look at the wiring harness. the reason mine did that is bc my glow plug shorted out and caused the PCM the drop the whole side of the motor. but when you unplug it it doesnt register so your running on 6 of the cyl. instead of 4. so check and see if your UVCH is burned up or anything. have you had a problem with blowing fuses?
EPA Special is offline  
post #3 of 4 Old 02-10-2011, 03:55 PM Thread Starter
Powerstroke.org Rookie
 
Join Date: Aug 2010
Posts: 6
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 EPA Special View Post
my truck did the exact same thing. what you need to do now is remove your valve cover and look at the wiring harness. the reason mine did that is bc my glow plug shorted out and caused the PCM the drop the whole side of the motor. but when you unplug it it doesnt register so your running on 6 of the cyl. instead of 4. so check and see if your UVCH is burned up or anything. have you had a problem with blowing fuses?

Yea i figured the part out about droping the whole bank of cylinders. i need a garage! -25 out sucks to try anything to fix a vehicle.

What makes me feel good, is the damn truck starts with -25F with 2 dead cylinders.
94stroke is offline  
post #4 of 4 Old 02-13-2011, 08:08 AM
Powerstroke.org Rookie
 
EPA Special's Avatar
 
Join Date: Oct 2010
Location: Mulberry (Near Lakeland)
Posts: 19
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
haha true. its nice and sunny here in FL!
EPA Special is offline  
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