Model year record

1978 WESTERN RWL Series

5 recall campaigns on file for this model year. No owner complaints on file.

Recalls

Recall campaignNHTSA 84V036000

Suspension: rear: springs: leaf spring assembly

Component
Suspension: rear: springs: leaf spring assembly
Manufacturer
MACK TRUCKS, INCORPORATED
Vehicles affected
3,421
Reported to NHTSA
1984-03-23

Defect description

SPRING SEAT CAN DEFORM, WHICH CAUSES A DECREASE IN THE CLAMPING FORCE IN THE SUSPENSION ASSEMBLY. LOSS OF CLAMPING FORCE MAY BRING ABOUT AXLE MISALIGNMENT OR AXLE HOUSING FAILURE.

Manufacturer remedy

THE AXLE HOUSING WILL BE INSPECTED AND REPLACED, IF NECESSARY. THE SPRING SEATS WILL ALSO BE REPLACED.

Recall campaignNHTSA 81V156000

Vehicle speed control: springs

Component
Vehicle speed control: springs
Manufacturer
MACK TRUCKS, INCORPORATED
Vehicles affected
186
Reported to NHTSA
1981-12-29
Owners notified
1982-07-13

Defect description

THE THROTTLE RETURN SPRINGS ON THE AFFECTED VEHICLES PROVIDE LESS THAN THE REQUIRED TORQUE, CAUSING A SLUGGISH RETURN OF THE THROTTLE TO THE IDLE POSITION AFTER THE ACCELERATOR PEDAL IS RELEASED. THIS FAILS TO COMPLY WITH THE REQUIREMENTS OF FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 124, "ACCELERATOR CONTROL SYSTEMS".

Manufacturer remedy

NEW ANCHOR BRACKETS AND SPRING EXTENSIONS FOR THE THROTTLE RETURN SPRINGS, WILL BE INSTALLED AT CORRECTED LOCATIONS WITHOUT CHARGE TO OWNER.

Recall campaignNHTSA 81V094000

Suspension: rear: springs

Component
Suspension: rear: springs
Manufacturer
MACK TRUCKS, INCORPORATED
Vehicles affected
1,000
Reported to NHTSA
1981-08-06
Owners notified
1982-05-10

Defect description

INADEQUATE WELD POSITIONING COUPLED WITH RADIUS ROD LOAD AND LOOSENING OF THE SPRING CLIP NUTS COULD CAUSE SPRING SEAT FRACTURE. THIS CAN RESULT IN LOSS OF DIRECTIONAL CONTROL OF THE AXLE.

Manufacturer remedy

SPRING SEAT RADIUS ROD BRACKETS WILL BE INSPECTED AND REPLACED IF NECESSARY. IN ADDITION, SUPPLEMENTAL BRACKETS WILL BE INSTALLED TO REINFORCE THE SPRING SEAT, WITHOUT CHARGE.

Recall campaignNHTSA 81V087000

Engine and engine cooling: engine

Component
Engine and engine cooling: engine
Manufacturer
MACK TRUCKS, INCORPORATED
Vehicles affected
15,000
Reported to NHTSA
1981-07-08
Owners notified
1982-10-12

Defect description

DUE TO A DEFICIENCY IN MATERIAL STRENGTH, THE FRONT ENGINE SUPPORT BRACKETS ON THE INVOLVED VEHICLES MAY DEVELOP CRACKS THAT COULD LEAD TO BRACKET FAILURE. THIS WOULD CAUSE THE ENGINE TO DROP DOWN INTO THE RADIATOR, DAMAGING THE SHROUD, ENGINE FAN, AND OTHER ASSOCIATED PARTS. THE ENGINE THROTTLE COULD BE PULLED INTO FULL GOVERNED POSITION.

Manufacturer remedy

THE EXISTING SUPPORT BRACKETS WILL BE REPLACED WITH BRACKETS MADE OF DUCTILE IRON, AT NO CHARGE TO OWNER.

Recall campaignNHTSA 79V275000

Suspension: front: springs: coil springs

Component
Suspension: front: springs: coil springs
Manufacturer
MACK TRUCKS, INCORPORATED
Vehicles affected
9,000
Reported to NHTSA
1979-12-28
Owners notified
1980-06-30

Defect description

THE INVOLVED VEHICLES FAIL TO COMPLY WITH FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 204, "STEERING CONTROL REARWARD DISPLACEMENT". THE ALUMINUM FRONT SPRING REAR BRACKET IS SUBJECT TO BREAKAGE. THIS BRACKET, ALONG WITH THE TAPER LEAF FRONT SPRINGS, ATTACHES THE SPRING SHACKLE TO THE CHASSIS FRAME.

Manufacturer remedy

DEALER WILL REPLACE THE PRESENT ALUMINUM FRONT SPRING REAR BRACKET WITH A REDESIGNED SPRING BRACKET CONTAINING A REINFORCING RIB.

Owner complaints

A complaint is one person's report to a federal agency. It is not a finding.

No complaints recorded for this model year.

Safety recall repairs are provided free of charge by franchised dealers, regardless of vehicle age or mileage. This page displays aggregated data for the model year. To check recall status for a specific vehicle, search its VIN at nhtsa.gov.