warped brake rotor or drum The shaking can be caused by the rotors being warped out, it can be fixed by ither get the rotors machined "turned" if there is enough metal on it the mechanic will measure it before he turns it, if it do not meet the thickness requirement, then you must replace both rotors, left and right along with the brake pads too, and also I highly recommend to replace the brake calipers too, since they also can be worned down to where it can be a hazard, and to have your brake lines and master cylinder cleaned and flushed out. Also have your back brakes check out too along with the drums or rear rotors too, and also I recommend to replace the brake cylinder or calipers which ever the case might be.
Our 2003 Impala has brake pads.
for best results use OE (dealer parts)
In all probability you have a bad ground.
The 2003 Chevrolet Impala has 12 valves.
The 2003 Chevrolet Impala has a V6 engine.
The 2003 Chevrolet Impala has a 4-speed automatic.
The 2003 Chevrolet Impala has overhead valves (OHV).
The 2003 Chevrolet Impala is a gas-powered vehicle.
The curb weight of the 2003 Chevrolet Impala is 3389 lbs..
The 2003 Chevrolet Impala has a drag coefficient of .30 Cd.
The 2003 Chevrolet Impala runs on regular unleaded.
The 2003 Impala has a 17 gallon fuel tank