Clunk/slop in trans or tcase - 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 11-10-2010, 05:03 PM
Powerstroke.org Rookie
 

Join Date: Jul 2009
Posts: 10
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Clunk/slop in trans or tcase

Getting a clunk when I get off the gas without pushing the clutch in. Feels like there's some slack then when I get back on the gas it feels like it slams. Happens in all gears. Happens in 4wd or 2wd. I changed the front u-joint and checked/regreased the rear. 2002 f250, One piece driveshaft, ZF6 trans, NP271 tcase, shifts fine into all gears. I have put it on jackstands and looked at it. No visible slop in driveshaft and the sound as best I can tell is coming from front of tcase/rear of trans. Looking for any ideas before I start tearing things apart.

Last edited by Dan S; 11-10-2010 at 05:06 PM.
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2  
Old 11-13-2010, 03:28 PM
Member
 

Join Date: Jan 2010
Posts: 73
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
One piece with no slip joint?
Reply With Quote Quick reply to this message
  #3  
Old 11-20-2010, 06:51 AM
Powerstroke.org Rookie
 

Join Date: Jul 2009
Posts: 10
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
There is a slip joint. It is greased and moves freely. After further investigation the sound really seems concentrated in the rear of the transmission. Also, I don't know if its related but another new sound that started somewhere around the same time is almost a grinding when upshifting early. Most predominant in 3rd and 4th gears.

Hope that can shed some more light on the subject.

Dan
Reply With Quote Quick reply to this message
  #4  
Old 11-20-2010, 10:11 AM
Member
 

Join Date: Jan 2010
Posts: 73
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
I had the same issue with my 02 and I had to take my slip joint apart and re-grease it. Solved my issue.
Reply With Quote Quick reply to this message
  #5  
Old 11-22-2010, 12:51 PM
Powerstroke.org Rookie
 

Join Date: Jul 2009
Posts: 10
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Re-greased the slip joint. Didn't change anything. While I had the driveshaft out I took a few videos to show the slop and the sound which, with the motor off is definately coming from directly behind the flywheel.

First vid is showing movement at Tcase output shaft:

Second is to hear sound up front:


Any help would be great
Dan
Reply With Quote Quick reply to this message
  #6  
Old 11-22-2010, 07:50 PM
Is it even worth it???



 
Join Date: Aug 2006
Location: Lex KY
Posts: 9,093
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Send a message via AIM to ABOBB Send a message via Yahoo to ABOBB
While you are checking things, don't forget to check the rear pinion shaft.

Best method is to have someone hold the brakes with the truck off, and in neutral. Crawl under the truck, and check for play in the rear drive shaft, while watching the pinion yoke.

If you don't have someone to hold the brakes for you, you can use the emergency brake, but would probably be best to also chock a tire or two, just to be safe.
Reply With Quote Quick reply to this message
  #7  
Old 11-23-2010, 09:42 AM
Powerstroke.org Rookie
 

Join Date: Jul 2009
Posts: 10
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Well whatever it is broke today. It now pops out of gear and grinds after a few feet of driving. Happens the same in all gears. The shifter is not moving when the trans disengages/pops out. I know Im gonna have to pull it now. Just looking for and educated guess so I can get a reasonably accurate estimate from a trans shop.
Reply With Quote Quick reply to this message
  #8  
Old 11-28-2010, 08:32 AM
Powerstroke.org Rookie
 

Join Date: Jul 2009
Posts: 10
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Clunk/slop in trans or tcase - Problem found(clutch disc)

I talked to a local mechanic after the failure and he suggested the clutch as the problem. I dropped the trans and check it. It was destroyed. I took some close up pics to show the failure. Looks like a real cheap setup that failed at a fairly low mileage. The turning marks were still visible on the flywheel. Hopefully this will save someone some frustration in the future.

Dan
Clutch Breakage pictures from trucks photos on webshots
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 01:06 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