RoadVitals

1978 Mack Mb Recalls

Safety recall campaigns filed with NHTSA that cover this model year

Recalls apply to specific vehicles, not to every vehicle of a model year. Check your VIN with NHTSA or your manufacturer's dealer to confirm whether a recall affects your vehicle.

Check a VIN on NHTSA.gov
Recall campaignsA safety recall is issued when a manufacturer or NHTSA determines that a vehicle has a safety-related defect or does not comply with a federal motor vehicle safety standard. Recall repairs are free. Whether a specific vehicle is covered depends on its VIN — a recall listed for a model year does not necessarily apply to every vehicle of that year.
3
Newest Jan 12, 1979
Carrying an NHTSA advisoryCampaigns where NHTSA told owners not to drive the vehicle, or to park it outside, until the repair is done.
0
Open investigationsNHTSA opens an investigation to examine whether a safety defect may exist. An open investigation is not a determination that a defect exists, and many investigations close without a recall. Investigations can, however, lead to one.
0

Recall campaigns

3 campaigns cover this model year — what the defect is, what it could cause, and what the remedy is

79V018000

SUSPENSION:REAR:SPRINGS:LEAF SPRING ASSEMBLY:HANGER/BRACKET

Jan 12, 1979
17 units potentially affected
The defect: THE STEEL BRACKETS ON THE SUSPENSION BEAM WERE FOUND TO BE DEFICIENT DUE TO EXCESSIVE SHRINKAGE AND LOW MECHANICAL PROPERTIES. FAILURE OF ONE OR BOTH OF THESE BRACKETS COULD CAUSE A SEPARATION OF THE AXLE HOUSING FROM THE SUSPENSION.
The remedy: THE DEALER WILL INSPECT AND, IF NECESSARY, REPLACE ANY SUSPECT BOGIE SPRING INSULATOR CAPS WITH NEW CAPS MEETING THE PROPER SPECIFICATIONS AT NO COST TO OWNER.
MACK TRUCKS, INCORPORATEDView on NHTSA.gov
78V210000

SERVICE BRAKES, AIR:ANTILOCK:INTERCONNECTING ASSEMBLY(WIRING)

Oct 3, 1978
19,370 units potentially affected
The defect: DELAYS OF UP TO ABOUT 2 SECONDS MAY EXIST IN THE BRAKE APPLICATION TIMES TO THE BRAKES ON THE BOGIE AXLES IN THE PRESENCE OF CERTAIN TYPES OF WHEEL SPEED SENSOR SIGNAL DISCONTINUITIES OR DISTORTIONS THAT MAY OCCUR AS A RESULT OF SENSOR WIRE FAILURE. THIS CONSTITUTES A NON-COMPLIANCE TO FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 121, "AIR BRAKE SYSTEMS".
The remedy: DEALER WILL INSTALL NEW WHEEL SPEED SENSORS THAT INCORPORATE IMPROVED WIRING AND THE PRESENT BOGIE ANTI-WHEEL LOCK SYSTEM WILL BE CHANGED TO AN AXLE-TO-AXLE SYSTEM FOR IMPROVED RELIABILITY.
MACK TRUCKS, INCORPORATEDView on NHTSA.gov
78V172000

STEERING:LINKAGES:KNUCKLE:SPINDLE:ARM

Aug 8, 1978
13,800 units potentially affected
The defect: THE EXISTING CROSS STEERING ARMS MAY HAVE INSUFFICIENT FATIGUE LIFE IN THE NECK AREA. THIS IS NEAR THE BOSS FOR THE CROSS STEERING TUBE BALL JOINT CONNECTION. FAILURE OF EITHER OF THE CROSS STEERING LEVERS COULD LEAD TO LOSS OF STEERING CONTROL OF THE RIGHT FRONT WHEEL.
The remedy: THE DEALER WILL INSPECT AND, IF NECESSARY, INSTALL CROSS STEERING ARMS OF IMPROVED DESIGN AND GREATER STRENGTH.
MACK TRUCKS, INCORPORATEDView on NHTSA.gov

What a recall is

Safety recall
A safety recall is issued when a manufacturer or NHTSA determines that a vehicle has a safety-related defect or does not comply with a federal motor vehicle safety standard. Recall repairs are free. Whether a specific vehicle is covered depends on its VIN — a recall listed for a model year does not necessarily apply to every vehicle of that year.
Safety investigation
NHTSA opens an investigation to examine whether a safety defect may exist. An open investigation is not a determination that a defect exists, and many investigations close without a recall. Investigations can, however, lead to one.
Manufacturer communication
Manufacturers file copies of the bulletins they send to dealers with NHTSA. These often describe diagnostic or repair procedures for a known condition. They are not recalls: repairs described in a bulletin are usually only free if the vehicle is still under warranty or the manufacturer has extended coverage.

Elsewhere on this vehicle

Data sources