tranny shift problems AT545 - Ford Powerstroke Diesel Forum
 
LinkBack Thread Tools Display Modes
post #1 of 3 Old 04-21-2013, 10:28 AM Thread Starter
Powerstroke.org Rookie
 
Join Date: Apr 2013
Posts: 3
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
tranny shift problems AT545

Hi i have 2000 international 4700 with t444e 7.3l diesel with at545 transmission i had the tranny replaced 1.5 years ago and i had a problem with it when it shifts from 2nd to 3rd gear only it revs up to 2000rpm and it starts to chug and clackle for a few seconds then it shifts into 3rd. this occurs every time but only when shifting from 2nd to 3rd. i have a 2 year warranty on this tranny from a authorized allison automatic shop. I had brought it back to them and they pulled the tranny out and replaced some parts and dyno tested it and they said it was good i picked it up and within the first day of driving it did the same thing. i have 6 months until warranty is up. Could this be a sensor problem or something inside the tranny? any comments or suggestions would be great.


Thanks
Gio
giobon is offline  
post #2 of 3 Old 06-04-2013, 07:42 PM
Powerstroke.org Rookie
 
Join Date: Apr 2013
Posts: 25
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
I had a similar issue with my 2002,had trans done and win I got it back with my programmer on any of the high output settings it would shift way late from 2nd to 3rd and would make same crackle noise,took it back and they tested everything and nothing ,got it back and same thing, at this point im starting to get a little pissed, just spent $3000 on a beefed up rebuild, anyways to make a long story short it was in and out of trans shop 3 times and no fix. Finally after research I decided to try the john woods valve body, and holy ****, it was what the doctor ordered thing shifted great, lowered my shift points in 2nd to 3rd by like 500rpms ,and was perfect.
smoke on this is offline  
post #3 of 3 Old 06-04-2013, 08:52 PM Thread Starter
Powerstroke.org Rookie
 
Join Date: Apr 2013
Posts: 3
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
Quote:
Originally Posted by smoke on this View Post
I had a similar issue with my 2002,had trans done and win I got it back with my programmer on any of the high output settings it would shift way late from 2nd to 3rd and would make same crackle noise,took it back and they tested everything and nothing ,got it back and same thing, at this point im starting to get a little pissed, just spent $3000 on a beefed up rebuild, anyways to make a long story short it was in and out of trans shop 3 times and no fix. Finally after research I decided to try the john woods valve body, and holy ****, it was what the doctor ordered thing shifted great, lowered my shift points in 2nd to 3rd by like 500rpms ,and was perfect.



Thanks for your help I brought it back to the tranny shop and they finally figured it out they replaced the spring in the valve body in between 2nd and 3rd and now it shifts great.

Thanks
Gio
giobon is offline  
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:
OR

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
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



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

 
For the best viewing experience please update your browser to Google Chrome