One problem related to radiator has been reported for the 2000 Nissan Altima. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2000 Nissan Altima based on all problems reported for the 2000 Altima.
Instrument cluster freezes indications for long periods intermittently. Odometer, tachometer, speedometer, engine temperature all freeze at what they were reading. This has been a repetitive, intermittent problem. Because of lack of true engine temperature reading, car was driven to overheating. Water pump failed causing the engine to overheat, blowing up the radiator and destroying the engine.