TL* THE CONTACT OWNS A 2006 CHEVROLET COBALT. WHILE DRIVING VARIOUS SPEEDS, THE FRONT END OF THE VEHICLE SHOOK AND BECAME UNSTABLE. THE CONTACT HEARD AN ABNORMAL NOISE COMING FROM THE STEERING WHEEL. THE POWER STEERING WARNING INDICATOR ILLUMINATED. THE FAILURE RECURRED ON NUMEROUS OCCASIONS. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC WHERE IT WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 130,000.