DRIVING AROUND CURVE ON RESIDENTIAL STREET IN MY 2008 CHEVROLET SILVERADO I CAME UPON AN ILLEGALLY PARKED CAR. I ATTEMPTED TO STEER AWAY FROM CAR WHEN STEERING LOCKED UP AND I COULD NOT AVOID HITTING CAR THEN CURB THEN GARAGE. STEERING MADE A STRANGE CLICKING NOISE DURING MY ATTEMPT TO AVOID THE CAR. I HAD THE POWER STEERING PUMP REPAIRED IN FEBRUARY 2010 AT DEALERSHIP WHERE WE HAD PURCHASED OUR TRUCK FOR THIS SAME PROBLEM. THEY FOUND THE PUMP TO BE DEFECTIVE AND EFFECTED A REPLACEMENT OF THIS PART. *TR