1977 MACK RWL — Problems, Recalls & Safety Data
N/A
Safety Rating
0
Owner Complaints
4
Recalls
0
Service Bulletins
0
Investigations
Overview of the 1977 MACK RWL
The 1977 MACK RWL has received a total of 0 safety complaints filed with the National Highway Traffic Safety Administration (NHTSA). There have been 4 recall campaigns affecting this vehicle, covering issues with STEERING:LINKAGES, ELECTRICAL SYSTEM:WIRING, ENGINE AND ENGINE COOLING:ENGINE.
Recalls for the 1977 MACK RWL
NHTSA has recorded 4 recalls for the 1977 MACK RWL, potentially affecting up to 27,054 vehicles.
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 →Recall 78V222000 — ELECTRICAL SYSTEM:WIRING
| 161 vehicles affected
Defect: A SHORT CIRCUIT COULD OCCUR DUE TO CHAFING OR WIRE DISCONNECTION IN THE BOX.
Remedy: THE WIRING IN THE SLEEPER BOX WILL BE CORRECTED, FREE OF CHARGE.
View full details →Recall 78V170000 — ENGINE AND ENGINE COOLING:ENGINE
| 850 vehicles affected
Defect: THE POSSIBILITY EXISTS THAT THE ALUMINUM ENGINE REAR SUPPORT BRACKETS MAY FAIL DUE TO METAL FATIGUE. THIS TYPE OF FAILURE WOULD ALLOW THE ENGINE AND TRANSMISSION ASSEMBLY TO DISLOCATE DOWNWARD. THIS WILL RESULT IN THROTTLE CONTROL LOSS WITH THE ENGINE OPERATING CONTINUOUSLY IN THE MID TO UPPER RANGE OF THE GOVERNED SPEED RANGE.
Remedy: DEALER WILL INSPECT AND, IF NECESSARY, REPLACE ALUMINUM SUPPORT BRACKETS WITH BRACKETS MADE FROM DUCTILE IRON FOR INCREASED STRENGTH.
View full details →Recall 78V210000 — SERVICE BRAKES, AIR:ANTILOCK:INTERCONNECTING ASSEMBLY(WIRING)
| 19,370 vehicles affected
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".
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.
View full details →Owner Complaints for the 1977 MACK RWL
No complaints have been filed with NHTSA for the 1977 MACK RWL.
Safety Rating for the 1977 MACK RWL
NHTSA has not yet tested the 1977 MACK RWL in its New Car Assessment Program.
Technical Service Bulletins for the 1977 MACK RWL
No technical service bulletins have been reported for this vehicle.
NHTSA Investigations for the 1977 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 (current)
- 1978 MACK RWL — 0 complaints
- 1979 MACK RWL — 0 complaints
- 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