You need to go to a shop that has a scanner and they can retrieve the codes and diagnose the problem for you.
The 2003 Chevrolet Impala has 12 valves.
The 2003 Chevrolet Impala has a V6 engine.
The 2003 Chevrolet Impala has overhead valves (OHV).
The 2003 Chevrolet Impala is a gas-powered vehicle.
The 2003 Chevrolet Impala has a 4-speed automatic.
The 2003 Chevrolet Impala is 16 ft. 8 in. (200 in.) long.
The 2003 Chevrolet Impala's turning circle is 38 ft..
The 2003 Chevrolet Impala runs on regular unleaded.
The 2003 Chevrolet Impala has a drag coefficient of .30 Cd.
The curb weight of the 2003 Chevrolet Impala is 3389 lbs..
The height of the 2003 Chevrolet Impala is 4 ft. 9.3 in. (57.3 in.).
The 2003 Chevrolet Impala has 38.4 in. of rear leg room.