Transmission will not shift

could be shift cables not a cheap fix some cables cost 600 or better

I suggtes to check vacuum lines.

Try neutral. or in drive, but just crawling. Give light pressure to the stick and sort of let it just fall into 4x4

It should be an electronic problem Scan the transmission and post the codes

have the same problem with 1999 mazda pickup try flushing the tranny and put in a new filter replace one quart of tranny fluid with some lucas trans fix and see if this helps it any, was told the tranny will need to be rebuilt.

Try to check the trans mission gears of your 1995 jeep grand cherokee.The shift fork and the clutch sleeve of the trans mission is locking to the other gears .And then also check the starter motor and its solenoid.if the starter motor solenoid is destroyed or worn out replace .

Check transmission fluid level, then look at transmission linkage. Some are in a place where they can be bumped around and knocked out of place. Tweek the shifter a little on both sides of the resting position when you shift. If the noise goes away. It is probably linkage related. If you can sample the tranny fluid, check for burnt smell and or metal flakes. Aamco will check it free but dont let them sell you repairs as preventative measures. They will try.

Be sure that the truck is fully engaged in two wheel drive. It may have slipped out of gear on the transfer-case. Move the lever for 2 and 4 wheel drive back and forth a few times before shifting transmission.Good luck

Replace the Transmissions Control Module (TCM) that mounts on the driver's side firewall. I have had to do this twice with mine. Glad the TCM was under warranty.

Check transmission fluid levels,,replace lost fluid as needed,,,if this does not work,,take the car to a mechanic,,,sorry to say,,this kind of problem almost alway's requires a transmission mechanic to repair.