One problem related to engine rattling and whining sounds has been reported for the 2000 Nissan Sentra. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2000 Nissan Sentra based on all problems reported for the 2000 Sentra.
Engine is making a rattling sound during acceleration, stops when vehicle reaches 40-45 mph. Taken to 2 dealer who said to wait and see if it stops doing it, since vehicle has a 5 year warranty. The dealer acknowledged that something was wrong within the engine, but could not determine what it was.