BUICK SKYHAWK 1983: SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DIFFERENTIAL PROPORTIONAL VALVE

General Information

NHTSA Campaign ID Number: 83V105000

Make Model Year
BUICK SKYHAWK 1983
Date Owners Notified Date Received by ODI Date Added to Database
1983-10-20 1983-10-13 1983-10-21

Production Dates: 1982-10-01 - 1983-05-01

Manufacturers Involved: General Motors, LLC

Component: SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DIFFERENTIAL PROPORTIONAL VALVE

Potential Number Of Units Affected: 352036

Report Initiator: MFR MFR Report

Summary

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.

Remedy

THE DEALER WILL INSPECT AND, IF NECESSARY, REPLACE ALL SUSPECT VALVES.

Notes

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.