Service brakes, hydraulic › Foundation components › Differential proportional valve
Buick Century and 13 more
Reported Oct 13, 1983352,036 vehicles affectedGENERAL MOTORS CORP.Built Oct 1, 1982 – May 1, 1983
The defect
The brake proportioner valves may break and separate from the master cylinder. This would allow brake fluid to leak and would result in a partial loss of the brake system.
The remedy
The dealer will inspect and, if necessary, replace all suspect valves.
Vehicle description: passenger vehicles.system: service brakes; brake proportioner valves.consequences of defect: since this IS a dual brake system, part of the systemwill still work and allow the vehicle to be stopped, but over a greaterdistance. Partial loss of the braking system at a time when minimum stoppingdistance IS required could result in a vehicle accident without prior warning.