NHTSA recall campaign
78V030000
Service Brakes, Air › Supply › Hoses, Lines/Piping, And Fittings
16Affected configurations shown400Potential units affected—Latest completion context
What can happen
Safety consequence
A DESIGN DEFICIENCY EXISTS IN THE AIR DRYER PIPING IN THE AREA OF THE PRESSURE RELIEF VALVE AND COMPRESSOR GOVERNOR CONTROL LINK. MOISTURE IS PASSED AND BUILDS UP IN THIS RELIEF VALVE AND CONTROL LINE. IN FREEZING AMBIENT TEMPERATURES, THIS MOISTURE MAY FREEZE, ALLOWING THE CHASSIS AIR SYSTEM PRESSURE TO EXCEED 150 PSI. EXCESSIVE AIR SYSTEM PRESSURE CAN CAUSE SEPARATION OF AIR PIPING CONNECTIONS AND AIR SYSTEM VALVE FAILURE.
What fixes it
Official remedy
THE DEALER WILL RELOCATE THE AIR SYSTEM COMPRESSOR GOVERNOR LINE AND PRESSURE RELIEF VALVE TO ELIMINATE MOISTURE ACCUMULATION.
Recall lifecycle
Repair completion history
Campaign-level completion reporting. This does not determine whether a particular VIN has been repaired.
Latest reported completion: available in the live DOT record.
Affected vehicles
Vehicle configurations connected to 78V030000
1978 MACK WLOpen vehicle record →1978 MACK WSOpen vehicle record →1978 MACK RSOpen vehicle record →1978 MACK RLOpen vehicle record →1977 MACK WSOpen vehicle record →1977 MACK WLOpen vehicle record →1977 MACK RSOpen vehicle record →1977 MACK RLOpen vehicle record →1976 MACK WSOpen vehicle record →1976 MACK WLOpen vehicle record →1976 MACK RLOpen vehicle record →1976 MACK RSOpen vehicle record →1975 MACK RSOpen vehicle record →1975 MACK RLOpen vehicle record →1975 MACK WSOpen vehicle record →1975 MACK WLOpen vehicle record →
Owner action
Campaign pages describe the public recall record. To determine whether your specific vehicle has an unrepaired recall, use your VIN and verify the current status through NHTSA.