1980 Land Rover 3500 - (1,300 vehicles affected) - Campaign #80V107000
SUMMARY:
SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:MASTER CYLINDER
DESCRIPTION:
THE POSSIBILITY EXISTS THAT UNDER HIGH AMBIENT/UNDERHOOD TEMPERATURES, A CHEMICAL ACTION MAY TAKE PLACE BETWEEN ANY WATER CONTENT IN THE BRAKE FLUID AND THE BRAKE SPRING IN THE MASTER CYLINDER SECONDARY PISTON CHAMBER. AS A RESULT OF THIS CHEMICAL ACTION, A GAS DEVELOPS (HYDROGEN) WHICH DISPLACES THE BRAKE FLUID CAUSING A PROGRESSIVE INCREASE IN BRAKE MASTER CYLINDER PISTON TRAVEL WITH SUBSEQUENT DECREASE IN THE EFFICIENCY OF THE REAR BRAKING SYSTEM.
CONSEQUENCE:
CORRECTIVE ACTION:
THE DEALER WILL REPLACE THE BRAKE MASTER CYLINDER ON THE INVOLVED VEHICLES AT NO CHARGE TO OWNER.
NOTES:
VEHICLE DESCRIPTION: PASSENGER VEHICLES.SYSTEM: SERVICE BRAKES; HYDRAULIC, MASTER CYLINDER PISTONS.CONSEQUENCES OF DEFECT: A DECREASE IN REAR BRAKE EFFICIENCY WOULD LENGTHEN THESTOPPING DISTANCE OF VEHICLE, AND IN A SUDDEN STOP SITUATION, COULD RESULT INAN ACCIDENT.