GMC P6T042 1983: SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:MASTER CYLINDER

General Information

NHTSA Campaign ID Number: 84V068000

Make Model Year
GMC P6T042 1983
Date Owners Notified Date Received by ODI Date Added to Database
1984-06-18 1984-05-29 1984-06-11

Production Dates: 1979-12-01 - 1983-03-01

Manufacturers Involved: General Motors, LLC

Component: SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:MASTER CYLINDER

Potential Number Of Units Affected: 32010

Report Initiator: MFR MFR Report

Summary

UNWANTED AIR IS BEING DRAWN INTO THE BRAKE SYSTEM WHEN BRAKE PEDAL IS RELEASED. THIS IS DUE TO THE USE OF THE BENDIX MASTER CYLINDER IN COMBINATION WITH THE BENDIX HYDROVAC.

Remedy

DEALER WILL CHECK TO SEE IF VEHICLE IS EQUIPPED WITH A BENDIX MASTER CYLINDER. IF SO, DEALER WILL INSTALL A TUBE AND HOSE ASSEMBLY AND REPAIR BRAKE SYSTEM. IF NEEDED, A NEW WAGNER MASTER CYLINDER WILL BE INSTALLED.

Notes

VEHICLE DESCRIPTION: MEDIUM TRUCKS EQUIPPED WITH SINGLE HYDRAULIC BRAKESYSTEMS.SYSTEM: SERVICE BRAKES; HYDRAULIC SYSTEM.CONSEQUENCES OF DEFECT: THE COMBINATION OF THIS DEFECT ALONG WITH EVERYDAY USEAND NORMAL WEAR, COULD RESULT IN DECREASED BRAKE PERFORMANCE AND EVENTUAL LOSSOF BRAKES. AN ACCIDENT COULD RESULT.