TL*THE CONTACT OWNS A 2008 FORD F-150. WHILE DRIVING LESS THAN 45 MPH AND ATTEMPTING TO MAKE A LEFT TURN, THE BRAKE PEDAL EXTENDED TO THE FLOOR AND THE CONTACT COULD NOT FEEL ANY HESITATION. THE VEHICLE JERKED AND CRASHED INTO THE PRECEDING VEHICLE. THERE WERE NO INJURIES. THE POLICE WAS CALLED AND A REPORT WAS FILED. THE FAILURE AND CURRENT MILEAGES WERE 5,000.