One problem related to crankcase (pcv) has been reported for the 2000 Saturn LS. The most recently reported issues are listed below.
Car accelerated on its own climbed from 20 to 60 braking only slowed the car down but as soon as the foot was taken off the brake car returned to high speed. The only way the car would stop was to turn off the car. While in neutral or park rpms climbed to 4500. Saturn had the car twice and blamed me for being late by 2000 miles with an oil change. The then rerouted a pvc hose to prevent moisture from entering throttle body. This seem to me to be a defect in the design and not something from wear and tear and Saturn should cover this repair.