04 impala LS/3.8L/90k miles. CClunking in steering wheel, ABS/traction control lights coming on at random, ABS pump coming on at random, cruise control malfunction, loud whining when I turn. I replaced all rotors and brakes, replaced struts, new tires replaced front wheel hubs, alternator, "greased intermediate steering shaft" and aligned wheels. Car still has a slight shake when I drive, still getting the ABS/TC light, ABS pump still engages AND still a light occaisional clunk in the steering column. even went back myself with a multi meter to check each hub individually to see if a sensor failed and check for bad wiring. Checked out OK. I found the problem. All substandard components.