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Old 03-10-2013, 01:43 PM   #1
MOBB1N
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Default T-case issues

I've had this problem for a few months.

Problem: when I shift from 2-4wd it doesn't shift into 4wd. The handle pops into the 4wd position with actually going into 4wd until its shifted into neutral.

It does go into 4wd when I put it into neutral. I can hear it "click" in. It does the same taking it out of 4wd back to 2wd. I can hear it click out out 4wd.



I'm going to try this first. What else should I try?
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Old 03-10-2013, 05:00 PM   #2
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Default Re: T-case issues

I had this problem with my 3" leveling kit. I shimmed the T-case a very little bit and I worked fine. Put my 5" Zone kit on and had the same issue, pulled the shims and it worked fine. Since it was new I always had A LOT of shifter movement also...
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Old 03-11-2013, 08:12 AM   #3
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Default Re: T-case issues

What do you mean you shimmed the t-case? Before I put my long arms on a had a t-case drop kit. I removed it when I put a SYE and new rear drive shaft on.
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Old 03-11-2013, 10:11 AM   #4
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Default Re: T-case issues

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Originally Posted by alaskangiles View Post
I had this problem with my 3" leveling kit. I shimmed the T-case a very little bit and I worked fine. Put my 5" Zone kit on and had the same issue, pulled the shims and it worked fine. Since it was new I always had A LOT of shifter movement also...
It's weird how much shifters move front to/back.

Since your linkage is a solid rod, I would look into the vacuum. Does your Jeep have CAD?
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Old 03-11-2013, 02:55 PM   #5
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Default Re: T-case issues

Knowing on what vehicle would be helpful!
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Old 03-11-2013, 03:13 PM   #6
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Default Re: T-case issues

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Knowing on what vehicle would be helpful!
I'd guess it's either an XJ, another XJ, or a Subaru Deductive reasoning rules out the Suby, so an XJ would be a safe guess
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Old 03-11-2013, 07:09 PM   #7
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Default Re: T-case issues

Sorry, 01 jeep cherokee.

T-Case is the NP242
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Old 03-11-2013, 07:52 PM   #8
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Default Re: T-case issues

No clue on that one, never had one. I did it at the mount on my Dodge. Super quick and easy fix in my case. They sell kits for this exact issue, helps with driveshaft angles also.
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Old 03-12-2013, 06:00 AM   #9
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Default Re: T-case issues

I'd try adjusting the linkage like your planning on. Shooooould solve your problem. If not, you may have to tear into the transfer case and take a look at the selected, could be bent.
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Old 03-12-2013, 08:11 AM   #10
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Default Re: T-case issues

Thanks for the help everyone
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Old 03-12-2013, 09:39 AM   #11
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Default Re: T-case issues

Sam,
After adjusting the shifter linkage to spec, if you don't get the desired results, I would disconnect the linkage completely and see if you can get the tcase tp engage MANUALLY, if not Then disassemble. It could be a case of the XJ being tweaked enough to not shift correctly when adjusted to factory spec, worth a try.My 2 cents. ll this ASSUMES you will jack the xj up and do this safely.
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Old 03-12-2013, 04:03 PM   #12
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Default Re: T-case issues

Adjusting the linkage did not work. According to the picture, the "trunnion" is still wiggly. I'm not sure if that's the issue. Should there be play in it?

The steps I followed was: I put it into 4Low (it shifted into 4Low with now issues) turned it off, loosened the lockbolt. The linkage rod moved freely. While I was wiggling it I accidentally put it into neutral. I started it back up and put the t-case back into 4low and tighten the lock nut. I took it around the block and got the same results as before. It goes into 4wd when I put the transmission into neutral. It "pops" when it engages.

Last edited by MOBB1N; 03-12-2013 at 04:07 PM.
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Old 03-12-2013, 09:57 PM   #13
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Default Re: T-case issues

Have you tried to disconnect the linkage and shift it into 4x4 manually? Then drive it and see if it stays locked in. Then you would know if you have a linkage issue or internal.
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Old 03-12-2013, 11:56 PM   #14
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Default Re: T-case issues

Quote:
Originally Posted by alaskangiles View Post
Have you tried to disconnect the linkage and shift it into 4x4 manually? Then drive it and see if it stays locked in. Then you would know if you have a linkage issue or internal.
Exactly. I broke a snap ring in the 242 I had and it tore itself up... Wouldn't stay in 4wd.
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Old 03-13-2013, 07:54 AM   #15
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Default Re: T-case issues

How do I shift it manually?
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Old 03-13-2013, 08:47 AM   #16
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Default Re: T-case issues

Quote:
Originally Posted by MOBB1N View Post
How do I shift it manually?
disconnect the Linkage Rod then shift using the Range Lever under the Jeep
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Old 03-13-2013, 10:36 AM   #17
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Default Re: T-case issues

Been awhile since I have had one of these apart, but I recall the little nylon pads wearing on the shift forks on some of these jeep cases and causing the gear not to slide far enough and kick out of gear or not go in. So there is a quick test you can do by jacking up one front wheel turning this wheel while in 2wd and having someone shift the lever to 4wd and see if it locks that wheel. If it does put some serious hurt on that wheel buy turning back and forth to try and get it to pop out. If you can get it to pop out see if the lever is moving back when this is happening or if its happening internally. Or if its not going in at all and the lever is in the 4wd position its internal.

Hope this helps..

Ed
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Old 03-13-2013, 03:28 PM   #18
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Default Re: T-case issues

Yup, or pull the rod off and grab it with a set of channel locks.
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Old 03-14-2013, 01:35 PM   #19
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Default Re: T-case issues

Still no dice

Linkage rod:


Range lever all the way back:
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Old 03-14-2013, 01:36 PM   #20
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Default Re: T-case issues

"Building" a np231 might be in my future
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Old 03-14-2013, 08:10 PM   #21
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Default Re: T-case issues

Is it just me or does the end of that rod look bent? Also looks like that bolt is backed out and just sliding down the rod. Or did you clean that bolt side down?
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Old 03-14-2013, 08:25 PM   #22
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Default Re: T-case issues

Quote:
Originally Posted by alaskangiles View Post
Is it just me or does the end of that rod look bent? Also looks like that bolt is backed out and just sliding down the rod. Or did you clean that bolt side down?
The bent look is just where the rod doesn't have any dirt lol and the bolt tightens down on the rod it's not backed out.

Ill be pulling the front drive shaft Saturday and Curtis is going to take a look at everything.
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Old 09-06-2013, 08:28 AM   #23
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Default Re: T-case issues

I know it's a old thread but what did you find on this ? I had same kinda issue with my Dakota and both front tires were 7lbs lower pressure than the rear.
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Old 09-06-2013, 08:45 AM   #24
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Default Re: T-case issues

I had the same problem (or similar with shifting into 4 and 2)
on my 231

if it shifts into ALL selections when the linkage is off (manuely changing it)

then you just have to find the sweet spot.

i used my 249 shifter linkage tab on my 231 so it would work.
the (range lever)

you may need to cut or bend or just adjust acordingly.


i was reading and other people have had this problem, you just have to find the right adjustment point.

different lifts ect... need different sweet spots.
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Old 09-07-2013, 09:16 AM   #25
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Default Re: T-case issues

Quote:
Originally Posted by ABNRML View Post
I know it's a old thread but what did you find on this ? I had same kinda issue with my Dakota and both front tires were 7lbs lower pressure than the rear.
I did. I had the wrong transmission mount. The tcase was about an inch lower than it was supposed to. I swapped the right tranny mount it and adjusted the linkage rod and she shifted perfect.

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