Service Brakes, Hydraulic:foundation Components:master Cylinder

NHTSA recall 77V111000 · announced July 15, 1977 · filed by General Motors Corp. · 12,963 units affected

The problem

ON THE INVOLVED VEHICLES, THE BRAKE MASTER CYLINDER MAY HAVE BEEN ASSEMBLED WITH RESERVOIR MOUNTING BOLTS THAT WERE IMPROPERLY PROCESSED. THIS COULD MAKE THESE BOLTS BRITTLE AND SUBJECT TO BREAKING. IF BREAKAGE OCCURS, A BRAKE FLUID LEAK MAY DEVELOP BETWEEN THE RESERVOIR AND MASTER CYLINDER. LOSS OF BRAKE FLUID WOULD ADVERSELY AFFECT VEHICLE BRAKING CAPABILITY.

What to do

DEALER WILL REPLACE THE MASTER CYLINDER RESERVOIR MOUNTING BOLTS WITH AN IMPROVED TYPE, WITHOUT CHARGE TO OWNER.

Notes

VEHICLE DESCRIPTION: VANS AND MOTORHOMES EQUIPPED WITH HYDRO-BOOST ASSISTSYSTEMS.SYSTEM: SERVICE BRAKES; HYDRAULIC MASTER CYLINDER.CONSEQUENCES OF DEFECT: PARTIAL LOSS OF BRAKING CAPABILITY COULD OCCUR,RESULTING IN LOSS OF VEHICLE CONTROL AND AN ACCIDENT.

Vehicles covered by this recall

• 1976 Chevrolet G30
• 1977 Chevrolet G30
• 1976 Chevrolet P30
• 1977 Chevrolet P30
• 1976 Gmc G30
• 1977 Gmc G30

Source: National Highway Traffic Safety Administration public recall data. This page reports official records and is not legal, medical, or repair advice.