1988 MACK CH Recalls (6)
- Campaign:
- 89V086000 on 06/08/1989
- Component:
- Steering:wheel and handle bar
- Manufactured:
- 07/31/1987 - 03/31/1989
- Affected:
- 16,000
- Defect:
- Steering wheel retaining nuts may have been improperly installed and/or torqued.
- Correction:
- Renew and retorque steering wheel retaining nuts.
- Notes:
- System: steering wheel retaining nuts.vehicle description: heavy duty trucks. consequence of defect: this could cause steering wheel disengagement from the steering column with loss of steering control which could result in anaccident.
- Campaign:
- 90V048000 on 03/14/1990
- Component:
- Steering:linkages
- Manufactured:
- 06/30/1988 - 01/31/1990
- Affected:
- 6,696
- Defect:
- The upper and lower pinch bolt on the steering pitman arm and the lower pinch bolt connection on shephard power gears were not torqued correctly.
- Consequence:
- Pinch bolt could loosen and break; this could cause loss of truck steering control and result in a crash.
- Correction:
- Install english hex head bolts and flat washers; torque pinch bolts to specifications.
- Notes:
- System: steering wheel arm pinch bolt.vehicle description: heavy-duty trucks with trw power and manual gears and sheppard power gears.
- Campaign:
- 91V112000 on 06/27/1991
- Component:
- Seat belts:front:anchorage
- Manufactured:
- 06/30/1988 - 05/31/1991
- Affected:
- 4,000
- Defect:
- Lap and shoulder seat belt arrangement for fixed (non-suspension) seats does not meet the seat belt loading requirements of fmvss 210. the inboard clinch nut in cab sill, where the buckle for the shoulder and lap belt is mounted, pulled out of the sill during the tests. consequence of defect: if seat belt anchirage fails, the seat occupant faces an increased risk of injury in an accident or sudden stop.
- Correction:
- Relocate the inboard seat belt mounting from top of the sill to the forward flange of the sill on the cab floor, and add a 3mm fillet weld around the 2 inboard clinch nuts.
- Notes:
- System: safety belt anchorages; fmvss 210.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:
- 94V216000 on 11/21/1994
- Component:
- Power train:driveline:center support bearing
- Manufactured:
- 06/30/1988 - 02/28/1993
- Affected:
- 17,720
- Defect:
- The driveshaft center bearing support bracket can crack and break.
- Consequence:
- If this happens, the driveshaft will wobble and can separate. separation can result in damage to other components of the vehicle or loose fragments can fall onto the roadway presenting a hazard to other drivers.
- Correction:
- Dealers will replace the center bearing hanger bracket.
- Notes:
- System: powertrain; driveline; bracket; support; center shaft.vehicle description: class 8 heavy trucks.note: if the 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 or the remedy does not correct the defect, contact mack trucks at 1-610-439-3011. also, contact the national highway traffic safety adminstration's auto safety hotline at 1-800-424-9393.
- Campaign:
- 00V019003 on 05/10/2000
- Component:
- Trailer hitches:fifth wheel assembly
- Affected:
- 90
- Defect:
- Vehicle description: heavy duty class 8 trucks equipped with fontaine fifth wheel assemblies. the fifth wheel mounting plates can crack.
- Consequence:
- Under the trailer loading, the mounting plate could eventually fail due to fatigue.
- Correction:
- Dealers will inspect and replace the mounting plates that are cracked.
- Notes:
- Mack recall no. sco259.owner notification began june 22, 2000.owner notification is expected to begin owners who take their vehicles to an authorized dealer on an agreed upon service date and do not receive the free remedy within a reasonable time should contact mack at 1-610-709-3011. also contact the national highway traffic safety administration's auto safety hotline at 1-888-dash-2-dot (1-888-327-4236).
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