One problem related to engine grinding noise has been reported for the 2001 Chevrolet Impala. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2001 Chevrolet Impala based on all problems reported for the 2001 Impala.
The oil pan leaks oil when not in motion and possibly while in motion. Additionally when motion the steering makes a grinding noise when turning (the sound appears to come from the steering box).