One problem related to engine exhaust system has been reported for the 2012 Chevrolet Impala. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2012 Chevrolet Impala based on all problems reported for the 2012 Impala.
The contact owns a 2012 Chevrolet Impala. The contact stated that fuel injectors 1, 3, and 5 malfunctioned and fuel traveled straight through the exhaust system. The contact noticed a fuel odor coming from the rear exhaust. The dealer diagnosed that injector ports 1, 3, and 5 needed to be replaced. The contact was advised not to drive the vehicle. The vehicle was not repaired. The manufacturer was not made aware of the failure. The approximate failure mileage was 58,168.