03 Excursion with P0275 and U0306 codes - Ford Powerstroke Diesel Forum
6.0L Problems Forum Having Trouble? Post here

Powerstroke.org is the premier Diesel Truck Forum on the internet. Registered Users do not see the above ads.
Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 11-30-2010, 01:06 PM
Powerstroke.org Rookie
 

Join Date: Dec 2009
Posts: 6
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
03 Excursion with P0275 and U0306 codes

I posted this in a no start thread but figured I should start a new one since that isn't the only problem. My excursion just started this problem yesterday. I drove 10 highway miles to work and it ran fine until i slowed to an idle and it felt like it wanted to die. It has been cold here like 10-15 degrees in the morning. I have 15w-40 oil in it right now but don't think that is the problem because the rough idle didn't start until the engine was warm. This morning it would not even start, 16 degrees. Towed it inside and plugged it in and it would start but still have a rough idle and no power. It through codes P0275 for Cylinder 5 contribution/balance and a U0306. I have been searching non stop since yesterday how to fix this but I am just not that familiar with the 6.0. Please help this is my daily driver. Thank you.
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2  
Old 11-30-2010, 01:48 PM
Compression Ignition Addict
 

Join Date: May 2010
Location: Warren, Oregon
Posts: 1,515
Thanks: 0
Thanked 1 Time in 1 Post
Feedback Score: 0 reviews
Quote:
Originally Posted by captredsquare View Post
I posted this in a no start thread but figured I should start a new one since that isn't the only problem. My excursion just started this problem yesterday. I drove 10 highway miles to work and it ran fine until i slowed to an idle and it felt like it wanted to die. It has been cold here like 10-15 degrees in the morning. I have 15w-40 oil in it right now but don't think that is the problem because the rough idle didn't start until the engine was warm. This morning it would not even start, 16 degrees. Towed it inside and plugged it in and it would start but still have a rough idle and no power. It through codes P0275 for Cylinder 5 contribution/balance and a U0306. I have been searching non stop since yesterday how to fix this but I am just not that familiar with the 6.0. Please help this is my daily driver. Thank you.
The U0306 Software Incompatibility with Fuel Injector Control Module
Something may not be plugged in all the way
2 stroker
Reply With Quote Quick reply to this message
  #3  
Old 11-30-2010, 03:15 PM
Powerstroke.org Rookie
 

Join Date: Dec 2009
Posts: 6
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Checked all the connections and the wire harness. One thing I forgot to mention is that it is blowing a lot of black smoke when rev'd. When the engine is rev'd it will fall way below idle and almost die. I think it may be the injector but would one bad injector make the truck do this? The check engine light never came on either.
Reply With Quote Quick reply to this message
  #4  
Old 11-30-2010, 03:25 PM
Almostdunfukinwidit


 

Join Date: Nov 2006
Location: Trempealeau, WI
Posts: 31,295
Thanks: 122
Thanked 123 Times in 109 Posts
Feedback Score: 0 reviews
Send a message via Yahoo to Dave
One injector wont do that. A bad FICM will
Reply With Quote Quick reply to this message
  #5  
Old 11-30-2010, 03:45 PM
Powerstroke.org Rookie
 

Join Date: Dec 2009
Posts: 6
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
I replaced the FICM last Feb, voltage checks out fine. Do I need it reflashed? If that is the case wouldn't it affect all the injectors? Why would it only start now if it was the FICM and not last Feb when I installed it? Love my excursion but this is not Fords best motor.
Reply With Quote Quick reply to this message
  #6  
Old 12-01-2010, 12:04 PM
Powerstroke.org Rookie
 

Join Date: Dec 2009
Posts: 6
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
So I got the truck inside a garage bay yesterday and let it sit all night to warm up. Unplugged the block heater to see how it would start. No real problems starting but still idles rougher than normal. Could it be a combination of a bad injector and FICM program?
Reply With Quote Quick reply to this message
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:

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
Display Modes

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



All times are GMT -8. The time now is 12:47 AM.


Powered by vBulletin® Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Search Engine Optimization by vBSEO 3.6.1
Garage Plus, Vendor Tools vBulletin Plugins by Drive Thru Online, Inc.

vB.Sponsors