engine "chugging" under light load - Ford Powerstroke Diesel Forum
6.7 Motor Problems 6.7 Motor Problems

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 07-03-2012, 10:49 AM
Member
 

Join Date: Feb 2011
Posts: 51
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
engine "chugging" under light load

On vacation for the week and truck is acting up a bit. Approx 45 mph while lightly on the throttle to maintain speed, the engine will make a chugging sound and starts "pulsing". It idles fine and runs great under load. Pulled camper 400miles yesterday and it ran great, except for the issue I just described. Any ideas on what it could be?

Thanks in advance.
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2  
Old 07-05-2012, 12:11 PM
Member
 

Join Date: Feb 2011
Posts: 51
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Took the truck to the dealer in bozeman mt. this morning, mechanic said the turbo is going bad.
Reply With Quote Quick reply to this message
  #3  
Old 07-11-2012, 05:44 AM
Powerstroke.org Rookie
 

Join Date: Dec 2009
Posts: 3
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
6.7 surging and flutter

My problem is the same. Took it in for a contaminated fluid and the mech changed Nox sensor and module. Went for road test and the fluttering got worse. He then changed the turbo (kit) throttle body and solenoid. Still doing the same thing. Lost power and you can't even spin the tires. It's been 1 week today. If they can't find out what the problem is by Friday, Ford is getting the keys back. Not sure what I will get next.
Reply With Quote Quick reply to this message
  #4  
Old 07-14-2012, 08:34 PM
Member
 

Join Date: Feb 2011
Posts: 51
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Did the dealer rebuild the turbo? Truck is at my local dealer now. They called me Tuesday morning and said a new turbo was on the way and it will be ready on Monday.

Sent from my ADR6410LVW using AutoGuide.Com Free App
Reply With Quote Quick reply to this message
  #5  
Old 07-16-2012, 09:11 PM
Compression Ignition Addict
 

Join Date: Sep 2010
Posts: 177
Thanks: 0
Thanked 3 Times in 3 Posts
Feedback Score: 0 reviews
Mine has been fluttering occasionally particularly on decel now surging under light loads exactly as you described. Please keep us updated.

I have a Job1 '11 build so I know they have made improvements to the turbo that is std on all '12 models.
Reply With Quote Quick reply to this message
  #6  
Old 07-17-2012, 04:05 AM
Powerstroke.org Rookie
 

Join Date: Dec 2009
Posts: 3
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Thumbs up

I got my truck back and works great. The turbo was shot and they replaced the kit. The flutter was still there and after extensive testing the mechanic couldn't pin point the problem. Himself and the tech some how realized that the wrong data was downloaded into the ECM for my truck. It actually had software loaded for a F450. The flutter and turbo surge is gone. I can spin the tires and the limited slip kicks in on pavement. I hooked up my 5th which weights 12000 and pulls strong and doesn't miss a beat.
Reply With Quote Quick reply to this message
  #7  
Old 07-17-2012, 04:20 AM
Compression Ignition Addict
 

Join Date: Feb 2009
Location: Nacogdoches, TX
Posts: 11,007
Thanks: 0
Thanked 9 Times in 9 Posts
Feedback Score: 0 reviews
Good to hear that they are learning and seem to be doing well.
Reply With Quote Quick reply to this message
  #8  
Old 07-23-2012, 10:34 AM
Member
 

Join Date: Feb 2011
Posts: 51
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Had my truck back for less than a week, still has the same symptoms as before. Called and talked to the dealers service manager, he is going to have a mechanic waiting for me at 5 this evening to go for a test drive.
Reply With Quote Quick reply to this message
  #9  
Old 07-23-2012, 10:54 AM
Powerstroke.org Rookie
 

Join Date: Jul 2012
Posts: 1
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Engine Problems

I have just had my turbo changed and ecm updated and still have the same chugging problem at low lugging. Not impressed i don't think ford knows whats the issue. No incovenance to them there not with out a truck!!!
Reply With Quote Quick reply to this message
  #10  
Old 07-23-2012, 05:56 PM
Member
 

Join Date: Jul 2012
Posts: 31
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
mine is doing the same. started at 2000 miles. called ford and its a known problem and they dont have a fix.
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 01:44 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