1992 MACK CL Recalls (3)
- Campaign:
- 93V024000 on 03/24/1993
- Component:
- Trailer hitches
- Affected:
- 4,924
- Defect:
- The carrier yoke bolts were manufactured with worn rolling thread dies, causing stress concentrations which caused cracks during the quenching process.
- Consequence:
- This condition can cause bolt failure and allow thedriveline to separate from the carrier assembly.
- Correction:
- Replace the carrier yoke bolts.
- Notes:
- System: trailer yoke.vehicle description: heavy trucks.
- Campaign:
- 94V032000 on 02/28/1994
- Component:
- Vehicle speed control
- Manufactured:
- 06/30/1987 - 06/30/1992
- Affected:
- 39,777
- Defect:
- Fuel injection system reconfiguration to comply with engine emission standards cause higher engine vibration levels which lead to early wear and complete failure of the secondary throttle return mechanism.
- Consequence:
- In the event the primary throttle return fails, failure of the secondary throttle return system would not provide protection against loss of throttle control.
- Correction:
- A new production secondary throttle return system configuration will be installed.
- Notes:
- System: fuel; fuel pump.vehicle description: class 8 trucks equipped with e6 and e7 engines with robert bosch p7100 mechanically-governed fuel injection pumps.note: if your vehicle is presented to an authorized dealer on an agreed upon service date and the remedy is not provided within a reasonable time and free of charge or the remedy does not correct the defect or noncompliance, please contact the national highway traffic safety administration's auto safety hotline at 1-800-424-9393.
- Campaign:
- 95E003010 on 09/26/1995
- Component:
- Service brakes, air:supply:hoses, lines/piping, and fittings
- Manufactured:
- 09/30/1992 - 02/28/1995
- Affected:
- 1,224
- Defect:
- Air system blockage in the air dryer occurs degrading the moisture removing capabilities of the dryer when the vehicle is operated in a cold environment and moisture accumulates and freezes in the air dryer or in the line between the dryer and the air system reservoir. the air dryer can become overpressurized causing the air dryer cartridge to separate from the mounting base.
- Consequence:
- If the air dryer separates from the base, the cartridge can separate sufficiently enough to cause personal injury or property damage.
- Correction:
- Dealers will equip air systems with a pressure relief valve to be located between the compressor and the air dryer. this pressure relief valve is intended to vent if excessive pressure develops in the air dryer.
- Notes:
- System: brakes; air dryer. vehicle description: heavy duty class 8 trucks equipped with rockwell wabco system saver "1000" or system saver "twin" air dryer. note: if your vehicle is presented to an authorized dealer on an agreed upon service date and the remedy is not provided free of charge within a reasonable time, contact mack at 1-610-709-3011.also contact the national highwaytraffic safety administration's auto safety hotline at 1-800-424-9393.
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