Vehicle does not move when in drive or in reverse.
I'll answer for A/T auto tranny car, with 4wd.
RPM.
got a dash tachometer?
if yes this is easy.
you step on the throttle (right foot) and advance the RPM
to where.
stuck at 800? rpm
goes to 1500 to 2000 and shakes, (brakes iced up. and frozen)
goes to 3000 rpm or more, (tranny failure) or 4wd in neutral?
SOURCE: 96 Jeep Grand Cherokee wont go into reverse
chheck your tranny fluid. if it's ok, probably need tranny work done.
SOURCE: 2005 Jeep Wrangler X automatic - can't engage gears
HELLO , SOUNDS LIKE YOUR TRANS IS BAD KEEP IN MIND 1 GEAR AND REVERSE IS SAME GEAR SORRY BUT YOU MUST HAVE IT REPLACE OR OVERHAULD .
SOURCE: 1999 jeep wrangler no reverse
i would say your reverse gear is locking up on you and that you need to get it to a transmission shop before you break the gear off trying to back it up,,it will mess up the other gears
SOURCE: shifting lever doesnt lock
Likely the shift detent mechanism is broken. It's inside the unit and can be reached by removing the trans pan. It should be just inside where the shift lever goes through the case.
SOURCE: 4x4 transimission clunks when engaged?
When engaging the 4WD system, you are pulling the lever on the Transfer Case right? Not the transmission, it's a different gearbox.
There were several versions of transfer cases that used both full and part-time 4 wheel drive.
From your description this sounds like a part-time transfer case.
Going with that, it is somewhat normal to hear and feel a mild clunk when engaging 4WD high range, especially if you are at a complete stand-still or under full throttle.
Try engaging 4WD High while slowly rolling at idle - no throttle. It should pull in fairly smoothly.
Once 4WD is engaged it will literally LOCK the front and rear axles together. So do not do it on hard dry pavement.
These older style 4WD systems need a little "give" especially when turning. The engineers assume you are not engaging 4WD unless you are in a somewhat slippery scenario.
Many CV joints, axles, U-Joints, differentials, and transfer cases are damaged and broken by folks who don't understand this.
Reading the owners manual should provide a clearer description of what you've got.
Bear in mind that when you come out of 4WD it may not completely release, again due to hard pavement binding up the axles. You can try this: backing up 10-25 feet in a straight line, or getting one set of wheels on the shoulder or in some gravel. That should allow it to release the transfer case and go back to everyday 2WD high.
I hope this helps.
:)
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