7.3L injector problems - Ford Powerstroke Diesel Forum
User Tag List

LinkBack Thread Tools Display Modes
post #1 of 1 Old 03-27-2013, 06:07 PM Thread Starter
Powerstroke.org Rookie
Join Date: Mar 2013
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
7.3L injector problems

I'm a new member here, I've browsed a few of the threads and I found some great info in the past, thanks for all your help so far. I am having some injector problems and I was hoping for some info. My truck developed a hard shake at low rpm and cannot build speed when upshifting. Feels like I'm driving on grooved pavement. I've changed the fuel filter and checked the fuel pressure, and since I run home made biodiesel i emptied the tank and put pump diesel in for now. None of that seemed to make any difference so I bought the auto enginuity program today and ran a buzz test and a cylinder contribution test. Buzz test sounded like injector 7 is weak, but I have no experience. Contribution test indicated the following:
P0269 Cylinder 3 Injector Circuit Contribution / Balance Fault
P0281 Cylinder 7 Injector Circuit Contribution / Balance Fault
P0284 Cylinder 8 Injector Circuit Contribution / Balance Fault

I'm not sure I should go replacing injectors if the problem is elsewhere, 3 injectors at once sounds a little unusual to me. Could it be the FICM? If so how do I test that? I have a friend with the same truck and can swap a few parts if necessary to diagnose. Any ideas?
Rizzo 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