I HAVE A 2001 CHEVROLET C3500 PICKUP, I AM A TRAILER PULLER FOR FEMA WHILE WORKING IN CA, AND DRIVING DOWN A STEEP MOUNTAIN SIDE WHEN I APPLIED MY BRAKES, MY POWER STEERING WENT OUT ALSO MY POWER BRAKES BECAME REAL HARD . LATER I CALLED MY DEALERSHIP TALKED WITH A TECHNICIAN, I WAS INFORMED THAT THEY WERE HAVING PROBLEMS WITH POWER STEERING PUMPS, I REMOVED MINE, FOUND HALF BROKEN, AFTER REPLACING POWER STEERING PUMP, STEERING AND BRAKES RETURNED TO NORMAL. *LA