One problem related to engine noise has been reported for the 2005 Chevrolet Impala. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2005 Chevrolet Impala based on all problems reported for the 2005 Impala.
My 2005 Chevrolet Impala LS, when it had 235 miles on it had to be taken into the dealer because engine noise, "broken rocker pivot arm" got the car back, ran rough, vehicle stalled out at stop lite, restarted ok, rear window rubber trim coming off. Car now has 2300-miles on it.