One problem related to differential unit has been reported for the 2006 Kia Motor Sorento. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2006 Kia Motor Sorento based on all problems reported for the 2006 Sorento.
2006 kia Sorento ex 4wd, clunking sound in the rear end when you come to a complete stop and then start again. Rear differential went out and was replaced in Aug 2005, but the clunk in the rear end still remains. As of oct 2005 there is also an intermittant sound in the rear end that sounds like the differential is sticking or locking into a positive traction causing one tire to sound and feel like it is sliding on gravel. Previous owner reported same problem "clunk" in the rear end numerous times as well. Possibly a design flaw.