last night i was driving in 4wd and it would just kick out when it felt like it. any ideas? it a 1997 1500 sport.

 

Vacuum leak?

 

Did the t-case shift lever move, or did 4x4 just dis-engage?

If the t-case shift lever moved, I would guess mis-adjusted linkage (had an old Dakota that would do the same thing).

If the 4x4 light just went out (and you lost 4x4), but the t-case shift lever did not move (stayed at 4-Hi), then I am with HeyYou and would guess vacuum leak, or bad diaphragm.

 

How do i adjust it?

 

most common problem with these is bad vac.

ensure that the red line at the cad has around 17" in 2wd and then when in 4wd the black line should have 17". if no vac is found, trace the lines all the way up to the passenger side of the manifold, somewhere in there you will likely find your problem, if not a new t-case switch is in order

 

Not exactly sure just what the problem is here. Does the little lite go out? Or, does the shifter pop out of 4x4??

 

the shifter kicks out and the light goes out.

 

Ah, you need to adjust the linkage then, and see it that solves the problem, If it doesn't, you are going to need to dig a bit deeper. (possibly broken snap ring on rear output shaft.)

Not sure if there is a DIY for the adjustment in the faq section, take a look though.

 

The range fork or something else inside the TC is bad, you may have simply broken the snap ring, in which case one of these might fix your problem. http://www.drivetrain.com/parts_cata...ase_saver.html

I wouldn't wait too long to try it, if it is the problem, other bad things are going to happen to the case.