Horrible Vibration and No Acceleration - 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 01-08-2013, 05:03 PM
Powerstroke.org Rookie
 

Join Date: Apr 2011
Location: Harrod, Ohio
Posts: 17
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Horrible Vibration and No Acceleration

Hey guys,

I have a 2003 6.0 i have been fighting a problem with for 3 months now and cant figure it out. Right after shifting into 2nd threw 5th my truck vibrates horribly only at low rpms after getting back up to about 2000-2200 the shaking mellows out until hitting overdrive then it shakes horribly again, I've replaced u-joints, just replaced my rear end i shreadded my spider gears. I have not had it balanced yet i'm thinking that may be it? Also in 5th and overdrive if I try to accelerate the shaking gets a lot worse and turns into like a hop. I have to let it shift down into third before i can accelerate again. Any ideas?
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2  
Old 01-09-2013, 07:09 AM
Premium Member

 

Join Date: Sep 2008
Location: Oakbank, Manitoba
Posts: 3,020
Thanks: 6
Thanked 83 Times in 77 Posts
Feedback Score: 0 reviews
Since you said it was more RPM specific, my thoughts are towards a bearing in the transmission, torque converter, transfer case or the friction plates. However, after 3 months, I would have expected it to have shown you the money, so to speak.

4x4 or 2wd?

You still need to confirm:

Driveshaft out of balance or bent.
Driveline angle changed recently, new lift kit.
U-joints, yeah I know you said you changed them.
Pinion shaft or bearing.
Wheel/axle bearings.
Reply With Quote Quick reply to this message
  #3  
Old 01-09-2013, 08:32 AM
Powerstroke.org Rookie
 

Join Date: Apr 2011
Location: Harrod, Ohio
Posts: 17
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
I will say too it dose not shake near as bad stock, when its tuned is when the shaking really gets bad. When I blew my rear end out just before Christmas I rebuilt the rear end with Detroit True Traxs, I did not do anything with the pinion. Someone before welded a washer on the longest drive shaft to hold the u-joint in. I had a new end welded on at Lima clutch and joint thinking that would fix it but it hasn't I did not have them balance my drive shaft I'm thinking I should have. It is 4x4 but It hasn't had a front drive shaft since last August. The truck has had a 6.5 inch lift with 37s for a few years now. With the new rear end, u-joints, and end on the drive shaft it hasn't seemed to get better. When I run a 150 hp tune and used its just a small vibration but anything over 150 will really shake the truck. I also but a new carrier bearing on the drive shaft.


Sent from my iPhone using AutoGuide.com App
Reply With Quote Quick reply to this message
  #4  
Old 01-12-2013, 06:55 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
Do you have a monitor? Does it idle well?

Sent from my phone that somebody didn't help me get.
Reply With Quote Quick reply to this message
  #5  
Old 01-12-2013, 07:59 AM
Powerstroke.org Rookie
 

Join Date: Apr 2011
Location: Harrod, Ohio
Posts: 17
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Yes sct livewire ts. Yes it seems to idle okay.


Sent from my iPhone using AutoGuide.com App
Reply With Quote Quick reply to this message
  #6  
Old 01-12-2013, 08:09 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 Core2012 View Post
Yes sct livewire ts. Yes it seems to idle okay.


Sent from my iPhone using AutoGuide.com App
Not sure how the sct is on pulling codes, it sounds like bad injector(s). Just a thought.

Sent from my phone that somebody didn't help me get.
Reply With Quote Quick reply to this message
  #7  
Old 01-12-2013, 10:33 AM
Premium Member

 

Join Date: Sep 2008
Location: Oakbank, Manitoba
Posts: 3,020
Thanks: 6
Thanked 83 Times in 77 Posts
Feedback Score: 0 reviews
Quote:
It does not shake near as bad stock, but when it's tuned, the shaking really gets bad.
That kind of makes me think you have an injector or 2 misfiring under load at higher rpm. The FICM could be part of the problem, intermittent voltage reductions from the unit or the alternator. You can probably check the voltage when it happens with your monitor, but you would need a diagnostic tool like AE to catch the injectors for contribution and balance.

Other known causes of bucking under load with lower rpm are the turbo could be sticking, vanes or actuator. As well, the EGR could be doing the same.
Reply With Quote Quick reply to this message
  #8  
Old 01-28-2013, 06:56 PM
Premium Member
 

Join Date: Jan 2012
Location: Fallon, Nv
Posts: 2,402
Thanks: 52
Thanked 9 Times in 8 Posts
Feedback Score: 0 reviews
Re: Horrible Vibration and No Acceleration

What's your carrier bearing look like? Pushing it straight down when lifting a truck is the quickest way to destroy one. The carrier bearing needs to be rotated to maintain a straight line through it when lowering it for a lift. Pushing it straight down puts a bind on the input side.

Sent from my LG-VS700 using AutoGuide.Com Free App
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 12:15 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