Injectors? Fuel pump? what is it? - 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 10-28-2009, 04:48 PM
E&J E&J is offline
Member
 

Join Date: Sep 2009
Posts: 44
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Injectors? Fuel pump? what is it?

When I shut my truck off (2004 6.0) it sounds like the fuel pump is running for 30 seconds after shut down. I asked the dealer what it was and he said not to worry, it was just the fuel being pumped back out of the injectors. I've never heard of this and nobody I talked too has either. Its very loud and it seems to be coming from both sides of the engine so... it he right?
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2  
Old 10-28-2009, 05:52 PM
Powerstroke Techie

 

Join Date: Jun 2008
Location: Brampton, Ontario, Canada
Posts: 2,584
Thanks: 0
Thanked 1 Time in 1 Post
Feedback Score: 0 reviews
I am surprised that the dealer didn't suggest reflashing the PCM/FICM/TCM to the latest level when you inquired. The sound you are hearing is the injectors buzzing. It appears your truck still has the very old post key-off injector buzz strategy programming. It was pretty shortly after, that Ford released a newer calibration called "inductive heat" to aid in cold engine startup and driveability. Just a reflash at the dealer will rid your truck of the post key-off buzz.
Reply With Quote Quick reply to this message
  #3  
Old 10-28-2009, 06:22 PM
E&J E&J is offline
Member
 

Join Date: Sep 2009
Posts: 44
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
I have a sticker by the radiator with this code:
4U7A-12A650
BFH
12-1-05
That must be the ficm reflash?
So do I take the truck in and tell them I want a new upgrade? I wonder what that will cost?
Reply With Quote Quick reply to this message
  #4  
Old 10-28-2009, 06:37 PM
Powerstroke Techie

 

Join Date: Jun 2008
Location: Brampton, Ontario, Canada
Posts: 2,584
Thanks: 0
Thanked 1 Time in 1 Post
Feedback Score: 0 reviews
Quote:
Originally Posted by E&J View Post
I have a sticker by the radiator with this code:
4U7A-12A650
BFH
12-1-05
That must be the ficm reflash?
So do I take the truck in and tell them I want a new upgrade? I wonder what that will cost?
There have been NUMEROUS updates released since December of 2005, and yes bring it into the dealer to have the latest calibration installed. It flashes ALL three modules (PCM/FICM/TCM) whenever an update is released. Cost should be around what the dealer's hourly rate is.
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 07:27 PM.


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