Service brakes, airRecall 79V-188 · 1975–1977 Tmc MC8

TRANSPORTATION MFG. CORP. recall 79V-188 covers 748 1975–1977 Tmc MC8 for a service brakes, air problem, reported to NHTSA on August 15, 1979.

Vehicles repairedNo manufacturer report yet

Vehicles affected7481 model

ReportedAug 15, 1979Owners notified Oct 18, 1979

Complaints since0Same system, after the recall

Source: NHTSA recall 79V188000 and manufacturer quarterly reports. Started by NHTSA (compliance).

What's wrong

The problem

THE INVOLVED VEHICLES HAVE THE FOLLOWING NON-COMPLIANCES: THE LOW AIR WARNING SIGNAL MAY NOT ACTIVATE UNTIL THE SERVICE RESERVOIR PRESSURE IS BELOW 60 PSI. IN ADDITION, THE BRAKE RELEASE TIME MAY EXCEED 0.55 SECONDS AT THE RIGHT FRONT WHEEL, WHICH CONSTITUTES A NON-COMPLIANCE TO FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 121, "AIR BRAKE SYSTEMS".

What to do

The fix

DEALER WILL ADJUST THE PIN SWITCH TO THE PROPER PRESSURE TO BRING THE VEHICLE INTO COMPLIANCE WITH SAFETY STANDARD NO. 121.

VEHICLE DESCRIPTION: BUSES, INTERCITY.SYSTEM: SERVICE BRAKES; BRAKE SYSTEM.CONSEQUENCES OF DEFECT: AIR PRESSURE MAY FALL TOO LOW AND VEHICLE OPERATORWOULD NOT BE WARNED. RESULTING PARTIAL LOSS OF BRAKING ACTION COULD CAUSE LOSSOF VEHICLE CONTROL AND AN ACCIDENT. SLOW BRAKE RELEASE TIME WOULD ALSO AFFECTBRAKING PERFORMANCE AND COULD LEAD TO AN ACCIDENT.

Recall repairs are free. Confirm whether this recall is open on your vehicle by entering its VIN at nhtsa.gov/recalls.

1 model

Vehicles in this recall

Tmc MC81975, 1976, 1977

Built from January 1, 1975 to January 1, 1977. Not every vehicle in these model years is included; check by VIN.