One problem related to emission control 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.
Purchase - may 2003 transmission - may 2003 transmission (electrical wire) October 2003 the car continued to run irregular. On an intermittent basis it would be extremely hesitant taking off from a stop sign or red light. February 2004 - nothing was found wrong with the car although it continued to run improperly. September 2004 - catalytic converter October 2004 - undiagnosed due to chevy's refusal to diagnosis the car for free after just replacing the catalytic converter six (6) days ago.