1700rpm powerloss/vibration...injectors? - 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 11-22-2012, 11:44 PM
Compression Ignition Addict
 

Join Date: Jun 2011
Location: Paramus NJ
Posts: 595
Thanks: 3
Thanked 0 Times in 0 Posts
Feedback Score: 1 reviews
1700rpm powerloss/vibration...injectors?

When cruising on the highway i will get a power loss and a vibration at around 1500-1700rpm doing about 50-60mph. Vibration just started about a week or so ago and doesn't always happen. But the power loss at those rpms is becoming more frequent and almost constant now whenever im at that 50-60mph mark. I also have been seeing a huge drop in MPG. I was thinking maybe injectors?

Last edited by lowrider284; 11-22-2012 at 11:47 PM.
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2  
Old 11-23-2012, 12:17 AM
Banned
 

Join Date: Oct 2011
Location: Carrollton Ohio
Posts: 8,839
Thanks: 65
Thanked 58 Times in 40 Posts
Feedback Score: 10 reviews
Sounds about right. Mine did the same thing and I never broke 17 MPG on the highway and rarely seen above 12 in city/combined driving until I got my new injectors when I did gaskets and studs. Jesse explained to me that it was spool valves on the injectors that fail and cause the hesitation and bucking at 50-60 mph.
Reply With Quote Quick reply to this message
  #3  
Old 11-23-2012, 12:35 AM
Compression Ignition Addict
 

Join Date: Jun 2011
Location: Paramus NJ
Posts: 595
Thanks: 3
Thanked 0 Times in 0 Posts
Feedback Score: 1 reviews
Quote:
Originally Posted by Tuscany View Post
Sounds about right. Mine did the same thing and I never broke 17 MPG on the highway and rarely seen above 12 in city/combined driving until I got my new injectors when I did gaskets and studs. Jesse explained to me that it was spool valves on the injectors that fail and cause the hesitation and bucking at 50-60 mph.
Bryan, you've seen my rants lately about fuel economy and know my situation pretty well lol. This started happening a few weeks after my mpg drop if that has a difference? i did a little searching on the forums and there's a ton of posts about this "1700 rpm problem" i just went outside and set the truck back to a stock tune, warmed it up and took it for about a 8 mile round trip on the highway and it still has this power-loss at 1700 but the vibration toned down a bit as well now that its back to stock. Also i was giving it a few revs when i got back from the ride and noticed almost a light sputtering like sound coming from the truck in the higher rpms, is this related as well?
Reply With Quote Quick reply to this message
  #4  
Old 11-23-2012, 12:37 AM
Banned
 

Join Date: Oct 2011
Location: Carrollton Ohio
Posts: 8,839
Thanks: 65
Thanked 58 Times in 40 Posts
Feedback Score: 10 reviews
Very well could be injector related. However I would rule out batteries and FICM first before diving in and replacing the injectors.
Reply With Quote Quick reply to this message
  #5  
Old 11-23-2012, 12:46 AM
Compression Ignition Addict
 

Join Date: Jun 2011
Location: Paramus NJ
Posts: 595
Thanks: 3
Thanked 0 Times in 0 Posts
Feedback Score: 1 reviews
Quote:
Originally Posted by Tuscany View Post
Very well could be injector related. However I would rule out batteries and FICM first before diving in and replacing the injectors.
Good news is i am under warranty, bad news is i called my tech 2 days ago after guys on here responded with it being the ficm and my tech said its almost impossible for them to cover a ficm even with the warranty? he said like 9/10 guys have had to pay out of pocket? ive heard the ficm will still test ok even if it is shot? this could be it since i ran a scangauge2 on it yesterday and my volts were fine. Batteries tested fine about 3k miles ago at ford when it was in for service.
Reply With Quote Quick reply to this message
  #6  
Old 11-23-2012, 10:09 AM
Banned
 

Join Date: Oct 2011
Location: Carrollton Ohio
Posts: 8,839
Thanks: 65
Thanked 58 Times in 40 Posts
Feedback Score: 10 reviews
Well I would take it to them then and have them diagnose it. If it's injectors or FICM they should be able to tell.
Reply With Quote Quick reply to this message
  #7  
Old 11-23-2012, 11:42 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
Mine did that with a bad injector, including a rough idle.

Sent from my phone that somebody didn't help me get.
Reply With Quote Quick reply to this message
  #8  
Old 11-23-2012, 11:51 AM
Compression Ignition Addict
 

Join Date: Jun 2011
Location: Paramus NJ
Posts: 595
Thanks: 3
Thanked 0 Times in 0 Posts
Feedback Score: 1 reviews
Got an appt with ford for next week...ill keep everyone updated
Reply With Quote Quick reply to this message
  #9  
Old 11-25-2012, 02:50 AM
Compression Ignition Addict
 

Join Date: Jun 2011
Location: Paramus NJ
Posts: 595
Thanks: 3
Thanked 0 Times in 0 Posts
Feedback Score: 1 reviews
Just went out to start my start after sitting for 10hrs and had a horrible almost clunking noise coming from the motor for the first 30-45 seconds but the weird part is it cranked over right away in almost a split second?
Reply With Quote Quick reply to this message
  #10  
Old 11-28-2012, 03:33 PM
Member
 

Join Date: Mar 2011
Location: Big Pine Key
Posts: 34
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Mine had the same misfiring vibration/bucking at the same RPM range and roughly same speeds. A decent 6.0 diesel repair truck shop found a misfiring injector and replaced it roughly 14,000 miles ago. I have had no problems since with injectors... knock on wood. But after replacing the injector, i had a clogged oil cooler, which i ended up at the time running too hot of oil to my injectors causing the injector failure. I have since cleaned and changed coolant, and oIl cooler, and deleted EGR system for longevity purposes. I Do not believe you need to replace ALL injectors if need be. They only replaced 1 of mine and it fixed the problem. Although if they dignosed a bad FICM it might be another story..
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 12:27 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