911 7.3 keeps stumbling - Ford Powerstroke Diesel Forum
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 05-15-2008, 05:01 AM
Powerstroke.org Fanatic
 
Join Date: Jan 2008
Location: mobile, al
Posts: 119
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
911 7.3 keeps stumbling

Im lost now. Ive put an IPR, ICP, 1 injector and a pcm in the truck. At idle it runs great. As soon as you move it will start to knock and want to shut off. If you remove the load it returns to normal. Im about tired of this truck and ready to set it ablaze!!! Help please!
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2  
Old 05-15-2008, 05:48 AM
Serving Our Country!
 

Join Date: Jul 2007
Location: Dawson Springs Ky
Posts: 130
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Send a message via MSN to skip97IH Send a message via Yahoo to skip97IH
standard or auto you may be looking in the wrong place
Reply With Quote Quick reply to this message
  #3  
Old 05-15-2008, 06:30 AM
Powerstroke.org Fanatic
 
Join Date: Jan 2008
Location: mobile, al
Posts: 119
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Its a 5 speed
Reply With Quote Quick reply to this message
  #4  
Old 05-16-2008, 05:31 AM
Let's go B's!!!!

 

Join Date: Mar 2007
Location: Remington, Va. U.S.A.
Posts: 6,023
Thanks: 0
Thanked 1 Time in 1 Post
Feedback Score: 5 reviews
why one injector? Buzz test?
Reply With Quote Quick reply to this message
  #5  
Old 05-16-2008, 05:56 AM
Powerstroke.org Rookie
 

Join Date: May 2008
Location: Bobcaygeon, Ontario
Posts: 26
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
how about fuel pressure? Why did the injector fail?
Reply With Quote Quick reply to this message
  #6  
Old 05-16-2008, 10:35 AM
Powerstroke.org Fanatic
 
Join Date: Jan 2008
Location: mobile, al
Posts: 119
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
It failed contribution balance test. So as a good tech who needs money.....I replaced it. Fuel psi is decent. Im putting the pickup in the tank and a header on the filter housing now. Im getting frustrated, this doesnt happen to often but yet Im not a veteran at this crap either.
Reply With Quote Quick reply to this message
  #7  
Old 05-16-2008, 10:37 AM
Cynic
 

Join Date: Jun 2007
Location: Fort Worth, Texas
Posts: 11,194
Thanks: 0
Thanked 2 Times in 2 Posts
Feedback Score: 0 reviews
Have you watched the data stream?


Is it a heavy load or a light load off idle in 1st gear?
Reply With Quote Quick reply to this message
  #8  
Old 05-18-2008, 07:23 AM
Powerstroke.org Rookie
 

Join Date: May 2008
Location: Bobcaygeon, Ontario
Posts: 26
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
contribution test tells you which cylinder is down on power. Your experience may tell you that the injector failed. I'm asking what made the injector fail? Original part, poor design/ low fuel pressure/ failed o-rings / cracked injector cup?
Another thing to look at is pump some fuel out and check fuel quality.
I also thought about an issue I've heard about but not seen. Clearance between CMP sensor and trigger wheel? Does it have the newest level CMP sensor? there's a recall on '97 - '03 7.3PSDs
Reply With Quote Quick reply to this message
  #9  
Old 05-19-2008, 01:40 PM
Powerstroke.org Fanatic
 
Join Date: Jan 2008
Location: mobile, al
Posts: 119
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Yeah i checked cam clearance, I thought about it, but I have never seen that be an issue either. Im waiting on parts now, thank god the guy is being tolerable with me.
The injector failed the contribution balance test, once inspected it appears to just be clogged and probably failed internally.
Reply With Quote Quick reply to this message
  #10  
Old 05-21-2008, 07:37 AM
Powerstroke.org Fanatic
 
Join Date: Jan 2008
Location: mobile, al
Posts: 119
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Its a sad sad day. I dropped the tank and pulled the pickup tube out. The smell was very sweet, almost like peaches. Well itook some samples and found veggie oil, alot of it. He was trying to run some homemade bio diesel in the truck. Its just not mixxed right, about 50% veggie, you can watch the oil bubbles in my 10 oz sample just floating everywhere. SO now he is looking at some serious money on this truck.

Just filling you guys in, becareful if yall choose bio and do your research.
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:
If you do not want to register, fill this field only and the name will be used as user name for your post.
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 12:53 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