XJ transmission problems - JeepForum.com

LinkBack Thread Tools
post #1 of 6 Old 11-08-2013, 12:01 PM Thread Starter
Registered User
1999 XJ Cherokee 
Join Date: Oct 2007
Location: Norway
Posts: 22
XJ transmission problems


Model: 1999
Make: Jeep Cherokee 2.5 TurboDiesel
Transfer case: NP231, with Tom Woods SYE-kit
Transmission: AX-15 5 speed manual
Various other upgrades, such as RE 3.5 liftkit, 32x11.5 tires...

So, the other day I was out for a drive, when all of a sudden I was unable to down-shift from 5 to 4. I tried the clutch several times, but it just wouldn't get into gear.
After some effort, with the clutch and accelerator, I was able to get it in gear and finish my drive, but I now have serious trouble getting my car into gear.

Whether cold or warm (engine) the problem remains the same - at random intervals, it's almost impossible to shift gears, and from time to time, the car will contine driving, even though I have the clutch pressed in. I have to shift it to neutral for it to stop. This behavior isn't persistent though, only happens occasionaly.

Getting it into reverse is also a hassle, angry grinding noises errupting, as if I wasn't using the clutch at all.

So, does anyone have a good tip for me? Or a link to a solution?

Any and all assistance/help will be greatly appreciated!


Snottus is offline  
Sponsored Links
post #2 of 6 Old 11-10-2013, 06:40 PM
Registered User
1998 XJ Cherokee 
Join Date: Dec 2005
Location: Easton
Posts: 490
Sounds a like a clutch slave cylinder issue. I suggest you start by bleeding the clutch. We have to do this to my son's 1990 YJ every few months. He has the the AX-5 & internal slave cylinder. The vent tube connection on the slave cylinder is a little loose. It weeps fluid when pushing the clutch in (bottom of bell housing is always wet) and allows a little air to be sucked in on the return. It's a hassle but not worth taking out the transfer case and transmission to fix it....yet.
Your AX-15 should have an external slave cylinder (I'm guessing because I'm not familiar with how it mates up with your diesel) but the same principle should apply. Look for leakage. If the cylinder is leaking externally (or even just leaking by internally), you should be ale to change it without dropping the whole drive train.
ECL is offline  
post #3 of 6 Old 11-11-2013, 07:08 AM Thread Starter
Registered User
1999 XJ Cherokee 
Join Date: Oct 2007
Location: Norway
Posts: 22
Oh okay, I'll check that out, thanks man!
Snottus is offline  
post #4 of 6 Old 11-15-2013, 02:31 PM Thread Starter
Registered User
1999 XJ Cherokee 
Join Date: Oct 2007
Location: Norway
Posts: 22
Is it possible to remove and give the slave cylinder an ovehaul without draining the transmission?
Snottus is offline  
post #5 of 6 Old 11-16-2013, 06:58 AM
Registered User
1996 XJ Cherokee 
Join Date: Sep 2011
Location: guelph
Posts: 240
The clutch plate itself could have lost one of it's balancing springs. Upon under vehicle inspection it may seem fine but if one of those fell out it will make shifting very difficult.

Every man deserves a 'Hummer' once in a while.
But no man should go without a great 'Jeeping' at least three times a week!
maimedsk8er is offline  
post #6 of 6 Old 11-16-2013, 10:06 PM
Registered User
1999 XJ Cherokee 
Join Date: Dec 2011
Location: Kingston
Posts: 306
Slave is external on a '99 AX-15, but if you're having these kinds of problems you should drain the transmission anyway. Bound to be chunks of metal in there.
holysirsalad is offline  

problem , transmission , xj

Quick Reply

Register Now

In order to be able to post messages on the JeepForum.com forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.


Confirm Password:
Email Address
Please enter a valid e-mail address for yourself.

Email Address:


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.

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page

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 Off
Pingbacks are On
Refbacks are On

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