Access the National Highway Traffic Safety database of WESTERN WL SERIES recalls and defective parts found
on WESTERN WL SERIES automobiles. The National Highway Traffic Safety administration is authorized
to order the WESTERN WL SERIES manufacturers to recall and repair vehicles or parts of motor vehicle
equipment when its investigation indicates that they contain serious safety defects in their design,
structure, body, or performance.
| Vehicle | Component | Manufacterer |
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| 1978-1982 WESTERN WL SERIES | SUSPENSION:REAR:SPRINGS:LEAF SPRING ASSEMBLY Units affected: 3421 | MACK TRUCKS, INCORPORATED Report Date: 1984-03-23 |
| Summary: 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. |  |
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| 1983-1984 WESTERN WL SERIES | STEERING:WHEEL AND HANDLE BAR Units affected: 4393 | MACK TRUCKS, INCORPORATED Report Date: 1984-03-22 |
| Summary: IMPROPER STEERING CLAMP BOLTS AND TORQUE APPLIED DURING INSTALLATION. THE BOLT COULD FAIL, ALLOWING THE STEERING YOKE TO BECOME LOOSE. |  |
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| 1978-1981 WESTERN WL SERIES | SUSPENSION:REAR:SPRINGS Units affected: 1000 | MACK TRUCKS, INCORPORATED Report Date: 1981-08-06 |
| Summary: 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. |  |
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| 1978-1981 WESTERN WL SERIES | ENGINE AND ENGINE COOLING:ENGINE Units affected: 15000 | MACK TRUCKS, INCORPORATED Report Date: 1981-07-08 |
| Summary: 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. |  |
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| 1979-1980 WESTERN WL SERIES | EQUIPMENT:OTHER:LABELS Units affected: 3300 | MACK TRUCKS, INCORPORATED Report Date: 1980-03-11 |
| Summary: VEHICLE CERTIFICATION LABELS WERE MISLOCATED ON THE INVOLVED VEHICLES. THE LABELS ARE LOCATED INSIDE THE DISPATCH BOX LID WHERE THEY ARE NOT EASILY VISIBLE. |  |
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| 1978-1979 WESTERN WL SERIES | SUSPENSION:FRONT:SPRINGS:COIL SPRINGS Units affected: 9000 | MACK TRUCKS, INCORPORATED Report Date: 1979-12-28 |
| Summary: 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. |  |
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| 1978-1979 WESTERN WL SERIES | SEAT BELTS:FRONT:ANCHORAGE Units affected: 400 | MACK TRUCKS, INCORPORATED Report Date: 1979-12-27 |
| Summary: THE INVOLVED VEHICLES FAIL TO COMFORM TO FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 210, "SEAT BELT ASSEMBLY ANCHORAGES". THE TETHER BELT MOUNTING BRACKETS MAY ALLOW THE SEAT UPPER BASE TO ROTATE AND DISCONNECT UPON HEAVY LOADING. |  |
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| 1977-1979 WESTERN WL SERIES | ELECTRICAL SYSTEM:WIRING:FRONT UNDERHOOD Units affected: 4456 | MACK TRUCKS, INCORPORATED Report Date: 1979-12-27 |
| Summary: THE CAB ELECTRICAL FEED CABLES MAY HAVE BEEN INSTALLED ON THE INVOLVED VEHICLES WITH AN INADEQUATE CRIMPING OF THE TERMINAL TO THE CABLE. AS A RESULT, THE CABLE COULD SEPARATE FROM THE TERMINAL. |  |
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