One problem related to catalytic convertor has been reported for the 2000 Chevrolet Impala. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2000 Chevrolet Impala based on all problems reported for the 2000 Impala.
On slight grade when stopped at a traffic light or stop sign, vehicle will roll back when taking foot off brake and will hestitate when you accelerrate. At times from a stand still, vehicle will stumble when trying to get in fast traffic. Second try vehicle will stumble and then quickly accelerrate. Vehicles hestitates at slow speeds, 5 to 25. Speeds at 5 to 40, less than 40, vehicle will feel to buck when going up hills or minor grades. When this happens, there is a smell of rotten eggs.