Foundation components: differential proportional valveRecall 81V-095 · Buick and Chevrolet vehicles
GENERAL MOTORS CORP. recall 81V-095 covers 47,371 Buick and Chevrolet vehicles for a foundation components: differential proportional valve problem, reported to NHTSA on August 10, 1981.
Source: NHTSA recall 81V095000 and manufacturer quarterly reports. Started by an NHTSA defect investigation.
The problem
UNDER CERTAIN CONDITIONS, THE REAR BRAKES COULD LOCK UP WITHOUT PRIOR WARNING DURING HIGH DECELERATION BRAKING. THE PROBLEM MAY BE CAUSED BY DEFECTIVE PROPORTIONER VALVES IN THE BRAKING SYSTEM.
The fix
THE DEALER WILL INSPECT THE BRAKE SYSTEM PROPORTIONER VALVES AND IF NECESSARY INSTALL NEW VALVES.
VEHICLE DESCRIPTION: PASSENGER VEHICLES WITH MANUAL TRANSMISSIONS.SYSTEM: SERVICE BRAKES; REAR BRAKES.CONSEQUENCES OF DEFECT: REAR BRAKE LOCKUP COULD CAUSE A LOSS OF VEHICLE CONTROLAND AN ACCIDENT.
Recall repairs are free. Confirm whether this recall is open on your vehicle by entering its VIN at nhtsa.gov/recalls.
Vehicles in this recall
Built from August 1, 1978 to August 1, 1979. Not every vehicle in these model years is included; check by VIN.