T-case issue?? Help please! - JeepForum.com
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post #1 of 24 Old 01-04-2014, 08:58 AM Thread Starter
ElHefe2000
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1998 ZJ 
 
Join Date: Jan 2010
Location: Altoona
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T-case issue?? Help please!

I've searched for awhile & couldn't find an answer to this so here goes...I've got a '98 ZJ V8, 5.2L engine. My front tires won't spin, while the back ones do. Essentially I've got a 2wd Jeep Does this sound like a t-case problem or something else. Please help if you can.


you know how i know you're gay?


Because you thought of a video game with some guy in a peter pan outfit instead of a kick *** monster movie with Arnold and Jesse Ventura.
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post #2 of 24 Old 01-04-2014, 09:12 AM
mudruna
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1994 ZJ 
 
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I could be wrong, but it sounds like the viscous coupler in your transfer case is shot. I'm not an expert on the inner workings of the NP249 but I'm sure others will chime in on the details of the fix, I think there is even an link in the FAQ section at the top of this board talking about it.

94 ZJ Limited- 7" IRO premium, 4.56 gears on Elockers and Chromo's, 35" claws on beadlocks, Kevin's sliders
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post #3 of 24 Old 01-04-2014, 09:36 AM
pageman
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1995 ZJ 
 
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while in 4 hi do figure 8's in a parking lot with the jeep fully warmed up like 15miles and if the front end hops and cirps and kicks its a bad vc, if it doesent the we can move on to other things that might be your problem. if the t case is alrigt the only thing that i think it could be would be a 100% broken ring and pinion. the d shaft movs but the pinion is broken it wont transfer any power
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post #4 of 24 Old 01-04-2014, 12:42 PM Thread Starter
ElHefe2000
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Ok so I went & did some figure 8's no chirping, so I guess I can rule out the VC.

you know how i know you're gay?


Because you thought of a video game with some guy in a peter pan outfit instead of a kick *** monster movie with Arnold and Jesse Ventura.
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post #5 of 24 Old 01-04-2014, 12:56 PM
Scopez
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So you can hold the brake and just spin the rear tires with the front shaft in and it's in 4 all time? Definitely sounds like a tcase issue. It should be sending power to the front if the rear slips.

94 ZJ Laredo. 5.2 Crate engine. 6in JKS SA Lift. 33in Destination MTs. ARB Front Bumper.
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post #6 of 24 Old 01-04-2014, 01:13 PM
durango-bob
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It still could be a front axle issue or a tcase issue. Can you jack it up with all the wheels off the ground and let it idle in gear. Then you can see if the front wheels are getting any torque by trying to hold one of them. It is a good idea to have a helper work the brake while you do this.
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post #7 of 24 Old 01-04-2014, 08:09 PM Thread Starter
ElHefe2000
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Quote:
Originally Posted by Scopez View Post
Definitely sounds like a tcase issue. It should be sending power to the front if the rear slips.

Yeah, it's full time 4WD or supposed to be now it's RWD. That's what I thought! I dunno I need to find a friend with a lift.

you know how i know you're gay?


Because you thought of a video game with some guy in a peter pan outfit instead of a kick *** monster movie with Arnold and Jesse Ventura.
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post #8 of 24 Old 01-04-2014, 08:13 PM
dharroald
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Have you checked to make sure you have a driveshaft in the front...
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post #9 of 24 Old 01-04-2014, 10:51 PM
Scopez
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Quote:
Originally Posted by ElHefe2000
Yeah, it's full time 4WD or supposed to be now it's RWD. That's what I thought! I dunno I need to find a friend with a lift.
If you haven't checked the obvious and don't have a front shaft, I have one that'll fit your ZJ.

94 ZJ Laredo. 5.2 Crate engine. 6in JKS SA Lift. 33in Destination MTs. ARB Front Bumper.
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post #10 of 24 Old 01-05-2014, 11:44 AM Thread Starter
ElHefe2000
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Drive shaft is still there.

you know how i know you're gay?


Because you thought of a video game with some guy in a peter pan outfit instead of a kick *** monster movie with Arnold and Jesse Ventura.
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post #11 of 24 Old 01-05-2014, 09:16 PM
Compgeek789
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Wait... Mine chirps and bumps and all that good stuff while I'm turning sharp! Does that mean I potentially have a bad viscous coupler?

RIP 1994 ZJ 5.2
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post #12 of 24 Old 01-05-2014, 10:09 PM
Scopez
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Quote:
Originally Posted by Compgeek789 View Post
Wait... Mine chirps and bumps and all that good stuff while I'm turning sharp! Does that mean I potentially have a bad viscous coupler?


If you have the NP249 and your over 130k miles, then yes.

94 ZJ Laredo. 5.2 Crate engine. 6in JKS SA Lift. 33in Destination MTs. ARB Front Bumper.
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post #13 of 24 Old 01-05-2014, 11:53 PM
970001zj
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mine hops , chirps/squeals tires , groans low at 30 in the front and rear then higher and louder at 40 , whines at cruise , vibrates really hard in the rearend at 50 and creaks about 15 times from the rear if i turn the wheel and give it gas

does that mean i need a new driveshaft ?

97 zj orvis/04 wj ltd
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post #14 of 24 Old 01-06-2014, 05:03 AM
Compgeek789
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Quote:
Originally Posted by 970001zj View Post
mine hops , chirps/squeals tires , groans low at 30 in the front and rear then higher and louder at 40 , whines at cruise , vibrates really hard in the rearend at 50 and creaks about 15 times from the rear if i turn the wheel and give it gas

does that mean i need a new driveshaft ?
Sounds like a combination of issues, but mostly the driveshaft. I used to get growling and vibrations from a bad front shaft. To be sure it is the driveshaft, park on a flat surface, put the e brake on, get underneath the vehicle and try turning and rattling the driveshaft. If it has a lot of play and/or rattles, then you have bad joints in the shaft. Do this for both shafts.

RIP 1994 ZJ 5.2
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post #15 of 24 Old 01-06-2014, 06:46 AM
JasonStebbins
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1997 ZJ 
 
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Quote:
Originally Posted by ElHefe2000 View Post
Drive shaft is still there.
Even with a bad VC it should still send power to the front tires. Have you tried putting it in neutral and shifting back and fourth a few times from 4hi to 4lo while coasting slowly? Otherwise it sounds like a TC issue.

Quote:
Originally Posted by 970001zj View Post
mine hops , chirps/squeals tires , groans low at 30 in the front and rear then higher and louder at 40 , whines at cruise , vibrates really hard in the rearend at 50 and creaks about 15 times from the rear if i turn the wheel and give it gas

does that mean i need a new driveshaft ?
Sounds like bad bearings in one of the differentials, bad U-joints and a bad VC.

Poop
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