Two problems related to engine funny noise have been reported for the 2011 Chevrolet Impala. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2011 Chevrolet Impala based on all problems reported for the 2011 Impala.
Reduced engine signal came on shortly after service traction, brakes, steering, came on then car shut off no power to anything. Brakes, steering nothing worked. Put car in neutral to try a restart nothing. Got car to a complete stop took the key out. The dash made a weird noise almost like something reset. I put keys back in turned the key car started no problem only thing the check engine light was on. Took vehicle home went back later that night. Started it up and check engine light was off. This happens almost once aweek. 2nd issue heater blower going down the road just shut off weather -2 plus a wind chill. Had it serviced they replaced a module blower ran fine for 4 days, weather advisory windchill temp is -10 45 miles away from home heater blower not working again.
The vehicle is always shaking when braking the vehicle makes weird sounds when turning the vehicle jerks all the time or something when trying to step on the gas the vehicle won't go.