Service Brakes, Air:antilock:interconnecting Assembly(wiring)

NHTSA recall 77V145000 · announced September 15, 1977 · filed by General Motors Corp. · 185 units affected

The problem

THE INVOLVED VEHICLES MAY NOT COMPLY WITH FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 121, "AIR BRAKE SYSTEMS". THE TRAILER BRAKE CONTROL AIR LINE WAS CONNECTED TO THE FRONT BRAKE DOUBLE CHECK VALVE RATHER THAN THE STOP LAMP SWITCH DOUBLE CHECK VALVE, SUCH THAT IN THE EVENT OF A FAILURE OF THE TRUCK FRONT BRAKE SYSTEM THE TRAILER BRAKES CANNOT BE APPLIED USING THE SERVICE BRAKE CONTROL (TREADLE VALVE).

What to do

DEALER WILL INSPECT AND CONNECT THE BRAKE CONTROL AIR LINE TO THE PROPER VALVE, WITHOUT CHARGE TO OWNER.

Notes

VEHICLE DESCRIPTION: TRUCKS EQUIPPED WITH AIR BRAKE MODELS W/RQ3 AND W/J91.SYSTEM: SERVICE BRAKES; TRAILER BRAKE CONTROLS.CONSEQUENCES OF DEFECT: LOSS OF TREADLE VALVE CONTROL OVER THE TRAILER BRAKESWOULD INCREASE VEHICLE STOPPING DISTANCE AND COULD RESULT IN AN ACCIDENT.

Vehicles covered by this recall

• 1975 Chevrolet Te65
• 1976 Chevrolet Te65
• 1977 Chevrolet Te65
• 1975 Gmc Te65
• 1976 Gmc Te65
• 1977 Gmc Te65

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