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Unread 10-29-2011, 01:40 PM   #1
sjwrangler
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Transfer case problem

Looking for help. Have had no problems in the past. Today with East coast snowstorm, went to plow, and either I could hear it coming out of 4wd or would not engage at all. Had 4low and neutral. My front axle is permanently locked, no vacuum issues. I hope this is a linkage issue. How do I check, and how to adjust? Any ideas? What and where is the linkage and does it have adjustments?

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Unread 10-29-2011, 04:44 PM   #2
hotelconucc93
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Front axle has vacuum disconnect on passenger side. Should be two vac hoses coming out of a disc looking housing. Check to see that those are connected, and then take off and spray some PB Blaster in them when they are above freezing and let them thaw. Then connect and see if they shift in and out with the transfer case. There is no linkage except for the one from your lever to the case. I bet you got morning dew moisture in them, it froze and wont move the vac motor. Put it in the garage, thaw it out and check the lines and put PB in both metal sockets where the hoses went.
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Unread 10-29-2011, 05:04 PM   #3
stenyeart
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Quote:
Originally Posted by hotelconucc93 View Post
Front axle has vacuum disconnect on passenger side. Should be two vac hoses coming out of a disc looking housing. Check to see that those are connected, and then take off and spray some PB Blaster in them when they are above freezing and let them thaw. Then connect and see if they shift in and out with the transfer case. There is no linkage except for the one from your lever to the case. I bet you got morning dew moisture in them, it froze and wont move the vac motor. Put it in the garage, thaw it out and check the lines and put PB in both metal sockets where the hoses went.
He said that his front axle is permanently locked.

The only linkage that would be involved is the linkage between your lever and your transfer case. Without much detail on what is happening, itís hard to say where your problem would be. You could check the linkage and make sure it didn't slip.

Here is a picture of the linkage. You can see that the end that connects to the shift lever is adjustable by loosening the bolt.

Give us some more details and I am sure someone will be able to help you out.
7714020146_large.jpg  
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Unread 10-29-2011, 05:49 PM   #4
I8AHUMR
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Unread 10-29-2011, 07:01 PM   #5
sjwrangler
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Quote:
Originally Posted by stenyeart View Post
He said that his front axle is permanently locked.

The only linkage that would be involved is the linkage between your lever and your transfer case. Without much detail on what is happening, it’s hard to say where your problem would be. You could check the linkage and make sure it didn't slip.

Here is a picture of the linkage. You can see that the end that connects to the shift lever is adjustable by loosening the bolt.

Give us some more details and I am sure someone will be able to help you out.
I'll look in the morning to see if I can see the linkage. Great picture. I assume there is only one lever/linkage, it both engages front axle and puts it into 4L?

My vac unit is disabled, the forks are in the locked position with a bolt. This is not my DD, so I do not care about it being in all the time.

Thanks for the help.
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Hers: 04 Columbia Edition. 6 cyl., 4" lift, 35s
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Unread 10-30-2011, 12:09 AM   #6
stenyeart
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There is only one lever and linkage that shifts from 2H-4H-N-4L. The front axle is engaged (factory vacuum setup) by a vacuum switch towards the rear of the transfer case. It is completely separate.

This is a picture I picked up off of google image search.
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Unread 10-30-2011, 08:18 AM   #7
sjwrangler
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Quote:
Originally Posted by stenyeart View Post
He said that his front axle is permanently locked.

The only linkage that would be involved is the linkage between your lever and your transfer case. Without much detail on what is happening, it’s hard to say where your problem would be. You could check the linkage and make sure it didn't slip.

Here is a picture of the linkage. You can see that the end that connects to the shift lever is adjustable by loosening the bolt.

Give us some more details and I am sure someone will be able to help you out.
OK, I checked it more carefully. While I did not get the PBS Blaster to loosen the linkage, I took it out again. It will go into 4L, so the front axle should be engaged. Under load, I felt and heard it "jump" out, no front axle power (or 2WD), but still in 4L. Can the transfer case do this? Does that mean the Tcase is shot? I have had Jeeps jump from 4L to N, never lose the front axle. There also was no 4H. I just do not know about the guts of the Tcase. Any ideas?
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Unread 11-02-2011, 04:28 PM   #8
sjwrangler
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OK, got the Jeep fixed. Turns out not to be the transfer case, the fork in my permanently locked front axle broke. The bolt keeping it engaged bent, fork snapped. I was getting front drive train engagement sporadically. Who would suspect it would snap?
I admit I did not suspect that, as the fork was locked in place. Thanks to those who tried to help.
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Unread 11-02-2011, 04:33 PM   #9
plmqazed
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Glad you got i fixed
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Unread 11-02-2011, 08:02 PM   #10
hotelconucc93
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Quote:
Originally Posted by stenyeart

He said that his front axle is permanently locked.
Think outside the box.....or stay in it.
__________________
Axles and bolts and springs....Oh My!

My Build Thread --->>> http://www.jeepforum.com/forum/f12/t...ilding-869713/

Not my write up, but now one of my jeeps losing a BA and gaining an AX-> http://www.jeepforum.com/forum/f19/y...ite-up-312203/
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Unread 11-03-2011, 06:08 AM   #11
sjwrangler
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The axle was and is again permanently locked.
I admit at first I did not check if it was broken, because it went in and then slipped out of 4WD. We did check it just before getting ready to drop the transfer case.
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His: 92 YJ 2.5, true-track front/&rear, Meyers plow
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