One problem related to starter has been reported for the 2001 Nissan Sentra. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2001 Nissan Sentra based on all problems reported for the 2001 Sentra.
My 2001 Nissan Sentra gxe started sputtering in Feb 05, also an electrical buzzing sound would occur at the same time. The car stalled out once while driving. Taken to dealership and I was told the ecm was bad. It was replaced free of charge (hidden 8yr/80,000 mile warranty on that part). The next day it was doing the same thing. I took it back to the dealership and the starter/ecm sensor was replaced. I'm still not convinced the problem is fixed and worry every time I drive it.