6 speed problem - 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 02-23-2010, 08:55 PM
Powerstroke.org Rookie
 

Join Date: Feb 2010
Posts: 3
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Unhappy 6 speed problem

Hey I'm new to this 6 speed manual in my 2006 with 34,000 miles. It doesn't do it everytime, but there are time when it doesn't want to shift to 3rd without clashing. I've tried shifting slower, faster, and nothing seems to matter. When it wants to do it it just does it. It is perhaps more frequent when extremely cold, but does it hot too. It never has done it from 4th to 3rd, only 2nd to 3rd. Otherwise, I love this truck! This engine has a bad rap I don't think it deserves.

Last edited by dslman; 02-23-2010 at 09:01 PM.
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2  
Old 02-23-2010, 09:15 PM
Compression Ignition Addict
 

Join Date: Feb 2009
Location: Canada
Posts: 546
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Mine was doing the same thing going into 2nd for the longest time for about 1 time outa 30 or so... and now it also does it going into 3rd. i might be wrong here but i would think the syncro could be going bad
Reply With Quote Quick reply to this message
  #3  
Old 02-23-2010, 09:21 PM
Compression Ignition Addict
 

Join Date: Jul 2008
Location: Vail, AZ
Posts: 4,507
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Send a message via AIM to ford_trck
Sounds like a sychro going bad. If you float the gears you won't have a problem getting it in. F.Y.I. Floating the gears is not using the clutch
Reply With Quote Quick reply to this message
  #4  
Old 02-23-2010, 09:37 PM
Compression Ignition Addict
 

Join Date: May 2007
Location: America
Posts: 6,783
Thanks: 0
Thanked 1 Time in 1 Post
Feedback Score: 0 reviews
Syncros bad. Brothers 6 speed did the same exzact thing. 2nd to 3rd only.
Reply With Quote Quick reply to this message
  #5  
Old 02-24-2010, 07:59 AM
Powerstroke.org Rookie
 

Join Date: Feb 2010
Posts: 3
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
That's what I was afraid of. Are the syncros weak in this transmission? Has anyone replaced them before, and if so how much of a job is it to do? I've only done that on older cast iron transmissions and tractors. Is this tranny pretty straight forward like the old ones?
Reply With Quote Quick reply to this message
  #6  
Old 02-24-2010, 02:53 PM
Compression Ignition Addict
 

Join Date: Feb 2007
Location: Worthington, Indiana
Posts: 578
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
What are you calling clashing? ZF-6's are NOT the smoothest tranny's to shift in the first place. I'vee never driven one that wasn't notchy. If it's actually grinding you have worst case synchronizer problems best case shift fork problems.
Reply With Quote Quick reply to this message
  #7  
Old 02-24-2010, 04:41 PM
Powerstroke.org Rookie
 

Join Date: Feb 2010
Posts: 3
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
It just grinds into gear briefly on occasion. The rest of the gears feel fine. Yeah it's not the smoothest tranny I've driven, but I wouldn't think that it would be needing help at 43000 miles. I've concidered maybe changing to a full synthetic oil for the hell of it since it's not a regular problem, but I don't know if that would do anything. Just thought it might be worth a try before I go tearing into my trans.
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 05:46 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