CONSUMER WAS TURNING WHEN RPMS WENT HIGH, SUDDENDLY VEHICLE STARTED TO PICK UP SPEED,CONSUMER WENT TO APPLY BRAKES, AND BRAKES WENT TO FLOOR, NO BRAKES, CAUSING THE CONSUMER TO RUN INTO A MOTEL. INTERMITTENT PROBLEM. MECHANIC CLAIMS PROPORTIONAL VALVE GOT STUCK, CAUSING THE SUDDEN ACCELERATION. *AK