Shaking & shuddering - bad injector? - 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 11-12-2012, 01:46 PM
Member
 

Join Date: Nov 2010
Posts: 56
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Shaking & shuddering - bad injector?

I have a 2005 F-350 with 210000km (135k miles) and this morning the minute she fired up I knew something was wrong. I had an important road trip planned which I couldn't cancel, so I drove 200+ miles today. Rough idle, shaking and shuddering when lugging below 2000rpm. If I'm cruising at 1500 rpm and try and gently step on it, the whole truck just shakes. Tow/haul helped a bit. Above 2000rpm it's not too bad.

I have a Scangauge and there are no codes, FICM is freshly rebuilt by Ed and voltage is 13.5, sometimes it drops to 13 and once in a while briefly to 12.5. The truck is stock except for a 40hp FICM tune, and EGR delete.

Have I lost an injector? Without throwing a code?
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2  
Old 11-12-2012, 03:10 PM
Premium Member
 

Join Date: Jan 2012
Location: Gulf Coast
Posts: 5,201
Thanks: 1
Thanked 1 Time in 1 Post
Feedback Score: 1 reviews
What you describe is what happened when I lost an injector, but I had two codes. Check your ficm and injector connectors.

Sent from my phone that somebody didn't help me get.
Reply With Quote Quick reply to this message
  #3  
Old 11-12-2012, 03:24 PM
Compression Ignition Addict
 

Join Date: Jul 2007
Location: nj
Posts: 1,273
Thanks: 1
Thanked 1 Time in 1 Post
Feedback Score: 0 reviews
I thought ficm voltage is suppose to be 48v??
Reply With Quote Quick reply to this message
  #4  
Old 11-12-2012, 03:32 PM
Premium Member
 

Join Date: Jan 2012
Location: Gulf Coast
Posts: 5,201
Thanks: 1
Thanked 1 Time in 1 Post
Feedback Score: 1 reviews
Quote:
Originally Posted by f350powerstroke View Post
I thought ficm voltage is suppose to be 48v??
I'm assuming he is calling out the logic voltage, I shouldn't assume I guess. Good point. Op have you checked the injector voltages?

Sent from my phone that somebody didn't help me get.
Reply With Quote Quick reply to this message
  #5  
Old 11-12-2012, 04:14 PM
Member
 

Join Date: Nov 2010
Posts: 56
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
The main ficm voltage is 48. All the x-gauges I have programmed in my Scangauge seem to be within range. I haven't checked the individual injector voltages, I assume that requires a bit of reprogramming to my Scanguage?

I have another short road trip to do in the morning, will I cause any further damage if I drive it 100 miles like this?
Reply With Quote Quick reply to this message
  #6  
Old 11-12-2012, 04:34 PM
Premium Member
 

Join Date: Jan 2012
Location: Gulf Coast
Posts: 5,201
Thanks: 1
Thanked 1 Time in 1 Post
Feedback Score: 1 reviews
I was talking about the 48v, you probably have an injector that is not fueling. If it was overfueling, it is not good to run it like that. I hated running mine, it wasn't fueling, I consider that lack of lubrication.

Sent from my phone that somebody didn't help me get.
Reply With Quote Quick reply to this message
  #7  
Old 11-12-2012, 04:57 PM
Member
 

Join Date: Nov 2010
Posts: 56
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Oil change and fuel filters tomorrow........
Reply With Quote Quick reply to this message
  #8  
Old 11-13-2012, 09:37 AM
Member
 

Join Date: Nov 2010
Posts: 56
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
So I dropped by the shop and had them read the codes. Why didn't my Scangauge give me these? It said no codes found, did I set it up wrong?

PO265 Injector circuit high cylinder 2

PO266 Camshaft postion sensor circuit range performance

Thoughts?
Reply With Quote Quick reply to this message
  #9  
Old 11-13-2012, 10:45 AM
Premium Member
 

Join Date: Jan 2012
Location: Gulf Coast
Posts: 5,201
Thanks: 1
Thanked 1 Time in 1 Post
Feedback Score: 1 reviews
Quote:
Originally Posted by cappybye View Post
So I dropped by the shop and had them read the codes. Why didn't my Scangauge give me these? It said no codes found, did I set it up wrong?

PO265 Injector circuit high cylinder 2

PO266 Camshaft postion sensor circuit range performance

Thoughts?
Not sure about the scanguage, if it was me, I'd ohm test the injector coils.......Why you shouldn't drive around with injector codes!

As for the camshaft sensor code.....it may be from the irratic running.

Sent from my phone that somebody didn't help me get.
Reply With Quote Quick reply to this message
  #10  
Old 11-13-2012, 12:04 PM
Compression Ignition Addict
 

Join Date: Sep 2012
Location: Sparks, NV
Posts: 185
Thanks: 0
Thanked 2 Times in 2 Posts
Feedback Score: 0 reviews
the symptons you describe are almost exactly what I had when I lost my injector #5, My check engine light did come on and the scangauge did read the code. I would check the wiring closely, I found on mine that the insulation was worn through. I resoldered the wire and insulated the whole thing really well, but my injector was still out (not sure if the wire issue caused the injector to fail).

When I ohmed out the coils on my injector, one of the coils was way out of wack, I replaced the injector and that problem cleared up.
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:
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 06:29 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