One problem related to crankshaft position sensor has been reported for the 2002 Jeep Liberty. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2002 Jeep Liberty based on all problems reported for the 2002 Liberty.
Driving through a school zone one morning and the car suddenly lost power steering and shut off, would not start again. Towed it back to house and read check engine code about crankshaft position sensor. It melted in place because of where it is in relation to the exhaust, took 4-5 months to fully dig out the melted sensor and replace. Had to put a heat shield over it myself and has since lasted 2+ years without trouble. Very poor design and a hassle to fix.