Recalls for 1989 Mack Rm

DEFECT #1 - VEHICLE SPEED CONTROL

Posted on: 1994-03-01
Description
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.

Corrective Action
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.

DEFECT #2 - VISIBILITY:WINDSHIELD WIPER/WASHER:LINKAGES

Posted on: 1990-03-28
Description
A tolerance mismatch in the crank assembly of the bosch windshield wiper motor could cause instantaneous separation of the crank from the linkage assembly in the left hand control arm assembly; this would make the system inoperable.

Consequence
Wiper failure during vehicle operation could reduce driver's ability to see the road, and creates a potential for an accident.

Corrective Action
Replace left hand control arm linkage assembly.

Notes
System: windshield wiper control arm assembly.vehicle description: heavy-duty trucks.