The defect
ON THE INVOLVED VEHICLES, THE HOSE USED TO SUPPLY VACUUM TO THE BRAKE POWER UNIT OR VACUUM RESERVE TANK MAY HAVE BEEN OF THE WRONG MATERIAL. THIS HOSE COULD DEFORM SUFFICIENTLY DURING NORMAL OPERATION TO CAUSE A REDUCTION IN VACUUM ASSIST TO THE BRAKE POWER UNIT. THIS WOULD RESULT IN GREATER BRAKE PEDAL EFFORT BY OPERATOR AND AN INCREASE IN VEHICLE STOPPING DISTANCES.
The remedy
THE DEALER WILL INSPECT AND, IF NECESSARY, REMOVE INCORRECT HOSE AND INSTALL THE PROPER VACUUM HOSE.
NHTSA's own wording · initiated by MFR
Vehicles covered
| Model | Model years |
|---|
Components: SERVICE BRAKES, HYDRAULIC:POWER ASSIST:VACUUM:HOSES, LINES/PIPING, AND FITTINGS
Other service brakes, hydraulic recalls in 1977
26 of the 245 recall campaigns reported to NHTSA in 1977 concerned the service brakes, hydraulic; INTERNATIONAL HARVESTER filed 49 campaigns in all.
| 77V227000 20 Dec 1977 | AM GENERAL CORPORATION |
| 77V202000 16 Nov 1977 | CHRYSLER CORPORATION |
| 77V188000 25 Oct 1977 | CHRYSLER CORPORATION |
| 77V184000 19 Oct 1977 | VOLKSWAGEN OF AMERICA,INC |
| 77V182000 18 Oct 1977 | VOLKSWAGEN OF AMERICA,INC |
| 77V181000 17 Oct 1977 | GENERAL MOTORS CORP. |
| 77V164000 28 Sept 1977 | HARLEY-DAVIDSON MOTOR CO. |
| 77V158000 22 Sept 1977 | FORD MOTOR COMPANY |
NHTSA recalls (public domain) · all recalls of 1977