Drum: wheel cylindersRecall 77V-181 · Chevrolet and Pontiac vehicles
GENERAL MOTORS CORP. recall 77V-181 covers 636 Chevrolet and Pontiac vehicles for a drum: wheel cylinders problem, reported to NHTSA on October 17, 1977.
Source: NHTSA recall 77V181000 and manufacturer quarterly reports. Started by the manufacturer.
The problem
THE REAR BRAKE WHEEL CYLINDER RETAINER ON THE INVOLVED VEHICLES MAY NOT HAVE BEEN PROPERLY INSTALLED. SHOULD THE WHEEL CYLINDER RETAINER BECOME COMPLETELY DISENGAGED, THE WHEEL CYLINDER COULD MOVE OUTBOARD CAUSING A LOSS OF BRAKE FLUID AND A LOSS OF REAR BRAKING ACTION.
The fix
THE DEALER WILL REPOSITION THE REAR WHEEL BRAKE CYLINDER RETAINERS, FREE OF CHARGE, ON ALL AFFECTED VEHICLES.
VEHICLE DESCRIPTION: PASSENGER VEHICLES.SYSTEM: SERVICE BRAKES; REAR WHEEL BRAKE CYLINDER RETAINERS.CONSEQUENCES OF DEFECT: LOSS OF REAR BRAKING CAPABILITY CAN OCCUR WITHOUTWARNING AND AN ACCIDENT COULD RESULT.NOTE: LOSS OF BRAKING ACTION WILL BE SIGNALLED TO DRIVER BY THE WARNING LIGHTON THE DASH AND BY AN INCREASE IN BRAKE PEDAL TRAVEL AND INCREASED VEHICLESTOPPING DISTANCES.
Recall repairs are free. Confirm whether this recall is open on your vehicle by entering its VIN at nhtsa.gov/recalls.