1979 MACK RWL — Problems, Recalls & Safety Data
N/A
Safety Rating
0
Owner Complaints
6
Recalls
0
Service Bulletins
0
Investigations
Overview of the 1979 MACK RWL
The 1979 MACK RWL has received a total of 0 safety complaints filed with the National Highway Traffic Safety Administration (NHTSA). There have been 6 recall campaigns affecting this vehicle, covering issues with STEERING:GEAR BOX:SHAFT PITMAN, STEERING: STEERING WHEEL/HANDLE BAR, SUSPENSION:REAR:SPRINGS:LEAF SPRING ASSEMBLY.
Recalls for the 1979 MACK RWL
NHTSA has recorded 6 recalls for the 1979 MACK RWL, potentially affecting up to 39,583 vehicles.
Recall 83V121000 — STEERING:GEAR BOX:SHAFT PITMAN
| 1,377 vehicles affected
Defect: MOUNTING OF THE PITMAN ARM MAY LOOSEN AND LEAD TO EXCESSIVE WEAR IN EITHER THE PITMAN ARM SPLINES OR THE STEERING GEAR SHAFT SPLINES, OR BOTH. THIS CONDITION IS DUE TO INCORRECT TIGHTENING OF THE MOUNTING SCREWS DURING ASSEMBLY.
Remedy: THE DEALER WILL INSPECT AND PROPERLY TIGHTEN THE PITMAN ARM RETAINING SCREWS.
View full details →Recall 79V164000 — STEERING: STEERING WHEEL/HANDLE BAR
| 4,640 vehicles affected
Defect: THE FLANGE HEAD PINCH BOLTS USED IN THE YOKES OF THE STEERING SHAFT ASSEMBLIES MAY HAVE BEEN OVERSTRESSED DUE TO THE BOLTS NOT BEING TIGHTENED TO SPECIFICATIONS. AS A RESULT, THE PINCH BOLTS COULD BREAK WHILE IN SERVICE.
Remedy: FLANGE HEAD PINCH BOLTS WILL BE REPLACED WITH STANDARD GRADE 8 FASTENERS WITHOUT CHARGE TO OWNER.
View full details →Recall 79V171000 — SUSPENSION:REAR:SPRINGS:LEAF SPRING ASSEMBLY
| 1,706 vehicles affected
Defect: THE SPRING SEAT PLATE, LOCATED BETWEEN THE AXLE HOUSING AND THE SUSPENSION SPRINGS, MAY DEFORM DUE TO SPRING BENDING. AS A RESULT, THE CLAMPING FORCE IN THE ASSEMBLY MAY BE REDUCED. LOSS OF CLAMPING FORCE COULD CAUSE SPRING FAILURE AND THE AXLE WILL DISLOCATE. ALSO, THE TIRE COULD COME INTO CONTACT WITH THE SPRING.
Remedy: THE DEALER WILL REPLACE THE EXISTING SPRING SEAT WITH A NEWLY FABRICATED SEAT WHICH IS WELDED TO THE HOUSING. AN IMPROVED SPRING CLAMPING PLATE AND NEW SPRINGS WILL ALSO BE INSTALLED WITHOUT CHARGE.
View full details →Recall 79V130000 — STEERING: STEERING WHEEL/HANDLE BAR
| 2,187 vehicles affected
Defect: IT HAS BEEN DETERMINED THAT TWO SCREWS THAT ARE PART OF THE BEARING ASSEMBLY LOCATED AT THE CAB DASH SHEET MAY NOT HAVE BEEN TIGHTENED PROPERLY. AS A RESULT, THE UPPER STEERING SHAFT MAY BE FREE TO "FLOAT" THROUGHOUT MUCH OF ITS LENGTH WHICH MAY RESULT IN INADEQUATE ENGAGEMENT IN THE SLIP SPLINES OF THE LOWER STEERING SHAFT. AXLE ARTICULATION...
Remedy: DEALER WILL INSTALL A SLEEVE BETWEEN THE DASH SHEET BEARING AND THE UPPER STEERING SHAFT LOWER YOKE TO ASSURE POSITIVE UPPER STEERING SHAFT LOCATION.
View full details →Recall 79V133000 — ENGINE AND ENGINE COOLING:ENGINE
| 23,000 vehicles affected
Defect: IN THE EVENT OF TURBOCHARGER COMPRESSOR WHEEL FAILURE, ONE OR MORE OF THE FOUR CAPSCREWS THAT HOLD THE TURBOCHARGER TOGETHER MAY BE STRUCK BY PARTS OF THE COMPRESSOR WHEEL, RESULTING IN THE CAPSCREWS BEING DAMAGED. IF THESE CAPSCREWS ARE DAMAGED TO THE POINT THAT THEY ALLOW THE COMPRESSOR BACK PLATE TO DISLOCATE FROM THE TURBOCHARGER BEARING HOUSING, ENGINE LUBRICATING OIL...
Remedy: DEALER WILL INSTALL A SHIELD FOR THE HEADS OF THE FOUR CAPSCREWS, ALONG WITH STRONGER SAE 8 GRADE 8 CAPSCREWS, IF NECESSARY, AT NO COST TO OWNER.
View full details →Recall 79V137000 — STEERING:LINKAGES
| 6,673 vehicles affected
Defect: THE PITMAN ARM RETAINING NUT MAY NOT HAVE BEEN TORQUED TO MANUFACTURER SPECIFICATIONS. THIS COULD RESULT IN INADEQUATE RETENTION OF THE NUT AT THE OUTPUT SHAFT, ALLOWING THE PITMAN ARM TO BECOME LOOSE.
Remedy: DEALER WILL INSPECT AND RETORQUE PITMAN ARM, IF NECESSARY, AT NO COST TO OWNER.
View full details →Owner Complaints for the 1979 MACK RWL
No complaints have been filed with NHTSA for the 1979 MACK RWL.
Safety Rating for the 1979 MACK RWL
NHTSA has not yet tested the 1979 MACK RWL in its New Car Assessment Program.
Technical Service Bulletins for the 1979 MACK RWL
No technical service bulletins have been reported for this vehicle.
NHTSA Investigations for the 1979 MACK RWL
There are no NHTSA defect investigations on record for this vehicle.
Other Model Years of the MACK RWL
- 1975 MACK RWL — 0 complaints
- 1976 MACK RWL — 0 complaints
- 1977 MACK RWL — 0 complaints
- 1978 MACK RWL — 0 complaints
- 1979 MACK RWL (current)
- 1980 MACK RWL — 0 complaints
- 1981 MACK RWL — 0 complaints
Other MACK Models
- MACK MACK — 35 total complaints
- MACK ANTHEM (AN) — 12 total complaints
- MACK CXU612 — 12 total complaints
- MACK CX613 — 10 total complaints
- MACK GRANITE (GR) — 10 total complaints
- MACK CH600 — 9 total complaints
- MACK GU — 9 total complaints
- MACK RD — 8 total complaints