1987 MACK MC Recall

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.

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