Insufficient fuel delivered to number 8 cylindar - inherent engineering flaw - 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 07-22-2009, 10:21 AM
Powerstroke.org Fanatic
 

Join Date: Mar 2009
Posts: 98
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Insufficient fuel delivered to number 8 cylindar - inherent engineering flaw

Ford 7.3 liter Power Stroke Diesel engine (on 2000 Ford Excursion Limited, 4X4) - insufficient fuel delivered to number 8 cylindar - inherent engineering flaw



All late model (I believe 1999 to present) Ford 7.3 liter Power Stroke Diesel engines suffer from an inherent engineering flaw, the fuel delivery system does not provide sufficient fuel to the number 8 cylinder for a full firing stroke. The engine will develop a loud "injector clatter" on the number 8 cylinder and appear to have a miss-fire resulting in rough idle and significant vibration of the engine and vehicle.



The cause of this problem is the fuel delivery system cannot supply sufficient fuel to the number 8 cylinder when it is needed because another cylinder is using the majority of the available supply at the time the number 8 needs the fuel. A basic design flaw in the fuel delivery system. Further, there is a significant lack of power in an engine that should be able to pull a house off the foundations.

-------------------------------------------------------------------------

Can you guys tell me what I can do to fix this?? Is there a way to get the much needed fuel to the # 8 with out breaking the bank
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2  
Old 07-22-2009, 10:26 AM
It'll buff out!

 

Join Date: May 2009
Location: San Diego, Ca
Posts: 359
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Send a message via Yahoo to TuRBoWHiNe
There's like a $40.00 crossover hose that is supposed to help with that. I think Raul at Stealth sells them, as well as ITP and places such as that. Look under the sponsors.
Reply With Quote Quick reply to this message
  #3  
Old 07-22-2009, 10:30 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
A "balance" tube may or may not help. A full regulated return is the only real fix.


To help mask this problem, the AE code injector was developed and installed in the number 8 cylinder.
Reply With Quote Quick reply to this message
  #4  
Old 07-22-2009, 10:39 AM
Powerstroke.org Fanatic
 

Join Date: Mar 2009
Posts: 98
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
First thanks guys for the responses.. Is there any instructions on how to do a full regulated return, and the cost associated with it ? I would like to try the tube first, but really what the power back, smooth idle back, and the knocking to go away.
Reply With Quote Quick reply to this message
  #5  
Old 07-22-2009, 10:44 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
I don't know the prices of a balance tube for the fuel side. Most vendors have dropped it. If you want, I can pm you a link to a full regulated return.

There are many regulated return kits out there (that include everything you'll need) and they are all over $400.
Reply With Quote Quick reply to this message
  #6  
Old 07-22-2009, 10:47 AM
Powerstroke.org Fanatic
 

Join Date: Mar 2009
Posts: 98
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Did they drop them because they found the "X" over tubes don't work
Reply With Quote Quick reply to this message
  #7  
Old 07-22-2009, 10:53 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
That and lack of interest when people started ditching them for regulated returns. There was a certain person a few years back that made a crude hose that tied the 2 rear fuel ports together. Kept claiming that it was a "fix".

Didn't fix anything.


A regulated return allows the fuel to COMPLETELY flow through the heads and back to the tank after the regulator. This allows proper fuel VOLUME within the heads and allows any air to pass back into the tank.
Reply With Quote Quick reply to this message
  #8  
Old 07-23-2009, 11:10 AM
Powerstroke.org Fanatic
 

Join Date: Mar 2009
Posts: 98
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
So does anybody have this mod on their truck ? Does it increase power, stop injector clatter, and the miss-fire resulting in rough idle and significant vibration of the engine and vehicle. Is it worth the 4 bones ?
Reply With Quote Quick reply to this message
  #9  
Old 07-23-2009, 11:27 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
I personally run a full regulated return as well as a bunch of other people. Injectors are much quieter now and truck became more responsive under heavy load. Also gave me the ability to dial in the fuel pressure that my truck likes best. One thing that you won't notice, but your injectors will:

Constant full fuel pressure/volume across the head. If a injector fires when it is out of fuel or very low of fuel, the plunger & barrel assembly can become damaged. The fuel acts as a buffer. Now with that being said, it will take long while for low fuel condition damage to occur. Out of fuel? Damage could be immediate.

I'm thinking about putting together a group buy to make it cheaper for everyone. I would need 10 people tho...
Reply With Quote Quick reply to this message
  #10  
Old 07-23-2009, 12:03 PM
Powerstroke.org Fanatic
 

Join Date: Mar 2009
Posts: 98
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Which brand are you thinking about? And what would the discount be?
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 06:42 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