Can IDM cause single injector to fail? - 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 06-23-2012, 04:39 AM
Powerstroke.org Rookie
 

Join Date: Aug 2007
Posts: 12
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Send a message via AIM to poopypants
Angry Can IDM cause single injector to fail?

Hi everyone, long time lurker. Been scouring the interwebs for info on this. So here's the deal, i have an early 99 f550 and it started knocking a bit at first i thought it was water in the fuel so i drained the bowl, flushed the lines, and replaced the filter. No improvement so took it down to a shop. shop told me injector 3 was bad. i've been looking for a reason to upgrade to stage 1's and a new chip. so i replaced all of the injectors, the UVCH was melted a bit on the passenger side bank. replaced that, replaced the plug outside the valve cover. still making the noise. can a faulty IDM cause a single injector to not fire? and any suggestions on next step for me or tests to try? Thanks in advance.
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2  
Old 06-27-2012, 11:03 AM
Hee Hee, he's doing it...
 

Join Date: Oct 2011
Location: Pasadena, CA
Posts: 5,401
Thanks: 44
Thanked 80 Times in 75 Posts
Feedback Score: 0 reviews
When you replaced the injectors did you re-flash the chip?
Reply With Quote Quick reply to this message
  #3  
Old 06-27-2012, 12:44 PM
Powerstroke.org Rookie
 

Join Date: Aug 2007
Posts: 12
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Send a message via AIM to poopypants
yeah, I ordered injectors and a chip from DP. it starts up fine, no smoke. it just has a knock. I swapped the IDM with a known working one. still have the knock. the knock doesn't seem to get louder with rpm's either. i looked at my wiring harness going to the valve covers, and it looks good. not sure where to look now.
Reply With Quote Quick reply to this message
  #4  
Old 06-27-2012, 01:19 PM
Powerstroke.org Rookie
 

Join Date: Aug 2007
Posts: 12
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Send a message via AIM to poopypants
i just noticed that this threat got stuck in the 94-98 area, it's an early 99. Fuel pressure at idle was 61 psi. fuel bowl is clean.
Reply With Quote Quick reply to this message
  #5  
Old 06-27-2012, 01:27 PM
Compression Ignition Addict
 

Join Date: Apr 2012
Location: Beaverton
Posts: 572
Thanks: 1
Thanked 4 Times in 3 Posts
Feedback Score: 0 reviews
Where's it knocking from? Grab an auto stethoscope with a probe on it and poke around.


Although it seems real weird to me that it doesn't change with RPM if it's motor related.
Reply With Quote Quick reply to this message
  #6  
Old 07-17-2012, 10:29 AM
Powerstroke.org Rookie
 

Join Date: Aug 2007
Posts: 12
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Send a message via AIM to poopypants
took a stethoscope to engine, loudest noise is around the exhaust manifold area on cylinder 7... going to do a compression test and pull the head when i have time.
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 05:33 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