I've had this car for 6 years. This car has experienced periodic vibration and harsh ride problems as long as I've owned it. I've had the wheels and all mounting surfaces, engine mounts and ball joints checked, replaced the steering rack, front struts, bearings, brakes and rotors and tried 4 different sets of tires (different manufacturers, road force balanced) - overall, vibration has decreased to reasonable levels, but on a smooth road the car often reacts strongly to the smallest bumps/road inconsistencies, and vibration in the steering wheel comes and goes (particularly at highway speeds). No DTCs are being set. I've consulted many experts including GM technicians and they are all stumped. The most common reason given is the tires - need the softest tires available, which is a joke since there are no such critters available (H and S ratings only). My question is, is the RSS responsible for this, or is it just the nature of the beast? Any suggestions to nail tis down?
have the same problem?
Wednesday, July 13th, 2011 AT 1:56 AM