Auto trans wont engage into drive unless you rev motor

Year,make,model,engine size, please, and any warning lights on?, if you mean that in gear you can only go 5-10mph this must be an engine that has a throttle body motor and there should be a check engine light on and a wrench sign on the dash it's possible that the throttle body motor has failed get the codes read for precise info on the cause ,I'm assuming that you checked your transmission fluid and the level is good on flat ground and the fluid color is rose pink to red not burnt and brown and when pressing the gas pedal the trans is not slipping

Check fluid level. In park. With engine running. If fluid level is ok it maybe internal trans.

bad pressure plate or stuck throw out bearing.

the level of fluid may be ok but it may need new fluid , when was last changed ? i'd change fluid as a first step

well the gears are within the transmission,even if it is rear wheel drive (differential will not cause slippage) shifting issues can u describe in more detail-harsh engagment when cold? engine revs for a while (delayed engagment) before vehicle moves forward or upshifts. what colour does the fluid look like? does it smell burnt? when was the last time the trans was serviced? is the level correct? is the correct fluid being used for top up?is there any transmission dtc's or is the check engine light on? slipage occurs when the clutch packs are worn, glazed or contaminated-there is also the possiblity of lack of adequate hydraulic pressure which is generated from the front pump, there could also be an issue with the
valve body and or shift solenoids. so he could be correct with the gears being ok as there are more dynamics to the tranmission operation, pending of the transmissions path of power-planetary gear set it could be an intermidiate band not fully holding the forward drum....pending on path of power. anyways a
simple pressure test of main line pressure will help in determining tranmission overall condition cause if you have one internal fault trans requires removal and at that point it'll have to come apart at that point you may as well be doing a complete rebuild.

The first thing you need to do is check the transmission fluid level,the transmission will not engage if low on fluid.

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 .

Hello, The first thing to check is the transmission fluid level. When you check the fluid does it have a burnt smell? If so, you probably have an internal failure. Have you had the transmission serviced? Your trans filter may be stopped up.
I hope this helps.
CYA, Gator241

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.

you need to replace clutch pack for that gear can be ordered seperately from parts store or dealer if you want to save money call peach street auto recycling at 1800-365-2341 for a warrantied used one! also might be time for change trans filter and fluid filter could be slightly clogged but I lean towards clutch pack I replace these alot on Hondas