Daughter is away at college, 90 Cherokee limited will not shift out of 4wd, Shifter will go into postion but car will not shift to 2wd

scan the PCM OBD2 jack for VSS sensor errors or others.
Veh, speed, sensors.
is this automatic or stick shifted
no engine told.
is it 4wd or 2wd
VSS is in different places 2wd/4wd
VSS on some cars now is ABS sensors.
so do you see ABS errors/

Hello guy
try posting what 4wd system you have,? first.
command trac or select track, (the latter is full time)
part time or the full time system,
we cant guess it....
read the operators guide first, if a part time system only
as i suspect, stop driving on dry pavement.
it's only for ice, or dirt. part time. part time is not a full time system.
Command-Trac
shifting to 4wd on dry (means no ice) pavement causes, drive line wind up! and the gears to lockup. (see steering get tight in turns?> and is dangerous to drive it like this , you, me and the box)
posted here 100s of times.

http://www.rubicon-trail.com/4WD101/driveline-bind.html


the non grand Cherokee. early

had these choices

• 1987-2001: New Process NP231 Command-Trac, part-time only, 2.72:1 ratio with low range

NP231 has the following settings: 2HI, 4HI, N, 4LO

• 1987-2001: New Process NP242 Selec-Trac, full-time or part-time, 2.72:1 ratio with low range

NP242 has the following settings: 2HI, 4 full-time, 4 part-time, N, 4LO


as you can see you need to first know, what NP box you have or
photo your shift lever for 4wd, an post it and we tell you.

more facts, on select trac. (totally unlike command trac)
Selec-Trac locking hub is used on 4WD Cherokee. Selec-Trac
utilizes a non-disconnect front axle. Engagement of 2WD or 4WD is
accomplished at transfer case by means of mechanical shift linkage.
System allows full or part time 4WD. Selec-Trac can be shifted into
2WD or 4WD modes from inside the vehicle at any speed.
unquote
next from the service manual,
4WD TO 2WD
1) Place mode select switch in 2WD position. Transfer case
should shift to 2WD and not allow shifting into 4WD or LO range. Axle
should shift after transfer case shifts.
2) To determine if front axle has completed a shift out of
4WD into 2WD, position mode select switch back to 4WD position while
operating vehicle at slow speed. If vehicle shifts into 2WD, axle will
ratchet. If shift is not completed, transfer case will shift into 4WD
and hissing sound will come from mode select switch.
end quote.

if unsure read the FSM book its free.
shows you both systems and how to diagnose it.

in the box, click Cherokee,,then click 1993, and behold.
the real deal.

http://www.morris4x4center.com/knowledge-base/index.htm?utm_source=cj#service

what aer tires touching? ice or dirt.?
if its not AWD "Quada-Trac"
then its part time 4wd
and is only for driving on ice or dirt
PT 4wd that is what Part time means.

see that here (down for week end)
https://www.jeepdied.com/

see the most common options there.
i cant guess what you bought.

to undo what you did,
get one tire on dirt or ice
and shift back to 2wd

or read your operators guide
good luck.....
i cant really help, can see your shifter
nor see what tires are rolling on.


ALL JEEP PART TIME SYSTEMS DO THIS,
WHEN DRIVERS DO NO READ THE OPERATORS GUIDE
IT'S NOT AWD! IF NOT.

THERE IS NO CENTER DIFFERENTIAL OR MAGIC CLUTCH

http://www.rubicon-trail.com/4WD101/driveline-bind.html

A 96 grand came with 3 different transfer cases in different models. if you see beside the 4x4 shifter there is the shift pattern printed there. some models only had the all-wheel drive option with high and low. others had 2wd-4wd high-n-4wd low. I would guess that since you're asking this, your jeep has only the all-wheel drive transfer case option. if this is the case... you are not able to run your jeep in 2wd

try puting in 2wd and backup 50 feet or so

can you hear the shifter motor trying 2 shift? if not its the shifter motor open the door and try 2 listen when your trying 2 shift it

My stepson also has a 99 grand cherokee and had the same problem they have a cable that connects the shifter to the transfer case. his problem was the cable broke. I changed it for him and works fine now but it's not easy to change so do not try to change it yourself unless you know what your doing.

With any 4WD like this, always move a few feet in the opposite direction when disengaging. If you were moving fwd in 4wd, switch to 2wd, back up a few feet, then go fwd.

Up to 60MPH.