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GMC CD042 Recall 84V068: Service Brakes, Hydraulic:Foundation Components:Master Cylinder

NHTSA campaign 84V068, reported May 29, 1984, 32,010 vehicles potentially affected.

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The repair is normally free at an authorized dealer.

Official recall notice

Safety recall 84V068GENERAL MOTORS CORP.
Component
SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:MASTER CYLINDER
Problem
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.
Risk
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.

Affected vehicles

Chevrolet CD042198019811982
Chevrolet P6T0421983
GMC CD042198019811982
GMC P6T0421983