Three problems related to axle shaft seal have been reported for the 1999 Jeep Grand Cherokee. The most recently reported issues are listed below.
Failure of the rear axle seal/bearings - grease leaking onto the rear brakes (safety hazard) this is the 4th failure on this vehicle - 1) repaired under warranty 2) repaired at cost of $250. 71 @ 65,891 miles 3) repaired under 3 way split $200. 00 my part @ 78,203 miles 4)failed at 103,473 miles estimated cost of repair $202. 58 (not by dealer) told by mechanic at dealer that the falt is in the casting of housing and Jeep knows this and will continue to fail. Called Jeep ( daimlerchrysler) customer assistance and was held on phone for 20 min then was told Jeep could do nothing about this other than recommend a different dealer.
Water pump rear wheel bearings.
Rear pinion seal leaking at first oil change -took to dealer - they changed out the whole rear end -noise again in rear -took to dealer they said now it was in the front - took to different dealer - tried to fix - took back vehicle till they could get whole new front and `rear end parts in - this has been over a month ago- while waiting in line vehicle died and restarted - few days later vehicle died three times at high speed restarted but ck engine light stayed on -towed to dealer- they said they replaced crank sensor - noticed new O2 sensor as well - still waiting on other parts - passenger side window does not work - vehicle surges at constant speeds -stick shift hard to shift from park to reverse and drive and visa versa - interior lights dont come on when remote turned on to open vehicle- engine feels and sounds rough- alarm system lights go on and off by themselves- once the dealer gets the parts in I will be taking it back for the 6th time with our new complaints.