Which 4 wheel drive system does it have?
Was any part of the drivetrain changed lately? If not, i would first jack up one of the front wheels and see if it can be rotated with ease. If it does, then there is something wrong inside the differential. (when your jeep is quadra drive, then the varilok inside the differential will lock both front wheels together after a few rotations, so it will stop rotating) If the wheel can not be turned freely, i would remove the front propeller shaft and see if the front T-case output yoke can be turned. There is some play on it, depending on how much the T-case chain is stretched, but it should not turn freely.
I would open up the front diff and see if there is any damage to the ring gear, the pinion gear or the diff gears. If ok, then its time to check the CV axles. They are inserted into the differential, but maybe the splines on one side are damaged. It happened before with other guys, that they installed new axle shafts, and lost the front wheel drive. A too short axle shaft was the problem.
It's the quadra drive I just bought it a few weeks ago and it seemed to get around good in the snow and was trying to get up a steep drive way and Put it in low then that's when started acting up
Dude! I had same issue! I repleaced the cv axles and bearings and come to find out the drover side axle was from a selectatrac. Replaced with all new and went to drive off and shit was no good the front spool was no good it was internally locked. It wasnt unloading when it was supposed to.
If the drivers side wheel can spin freely, then its axle is disconnected from the differential.
But also, when the passengers side wheel rotates the front prop shaft, then there seems to be something wrong in the T-case as well. My jeep has Quadra trac II, but i can not rotate one wheel, while the other is still on the ground. With both wheels in the air, you can spin one wheel, and the other will spin in the opposite direction. For quadra drive this is the same, however after a few rotations the varilok will be activated and both wheels want to spin in the same direction. Then the prop shaft should rotate as well, which the T-case wil prevent.
If you jack the rear end, put the T-case in 4Lo and the transmission in N, the front prop shaft should rotate as well.
I have 2001 jeep cherokee laredo and replaced both cv axels went into 4wd and back out into 2wd and now the driver front wheel has a grinding noise. Jacked up the front axel spin passenger front tire front driver wheel does not spin, spin driver with grinding noise tire passenger does not spin. Driver front wheel only has grinding noise. Took differential cover off looks fine no evidence of anything broken. What's the cause?
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