Why is thereShaking when brakes are applied on 2003 impala?

Answer 1

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.