WHILE WORKING ON MY PROPERTY, I WAS DRIVING UP A HILL IN MY BACKYARD WHEN MY POWER STEERING WENT OUT WHILE I WAS PASSING THROUGH THE GATE OF MY FENCE ON MY PROPERTY CAUSING ME TO IMPACT THE GATE CORNER POST. BECAUSE I WAS IN A TURN EXITING THROUGH THE FENCE, I SUSTAINED A SUBSTANTIAL DENT TO THE LEFT SIDE OF MY TRUCK BED AND TO THE RIGHT PASSENGER DOOR. I JACKED THE FRONT OF THE TRUCK, THE STEERING WHEEL MOVED FREELY, NO DAMAGE TO THE FRONT END. I CALLED THE NEAREST DEALERSHIP WHICH WAS A GMC DEALER, THEY INDICATED THAT I PROBABLY HAD A POWER STEERING PUMP FAILURE. I BROUGHT IT IN AND THEY CONFIRMED THAT THE PUMP HAD FAILED. THEY HAD TO REPLACE THE PUMP AND FLUSH THE SYSTEM, AND HAD THE DRIVE BELTS REPLACED WHILE THEY WERE WORKING IN THE AREA. ALSO HAD THE DENT ON THE LEFT SIDE REPAIRED BUT DID NOT REPAIR THE DENT ON THE RH SIDE DUE TO THE COST TO DO BOTH SIDES.*AK