NHTSA recall 94V032000
Vehicle speed control
Mack CF and 16 more
Reported Feb 15, 199439,777 vehicles affectedMACK TRUCKS, INCORPORATEDBuilt Jul 1, 1987 – Jul 1, 1992
The 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.
The risk
In the event the primary throttle return fails, failure of the secondary throttle return system would not provide protection against loss of throttle control.
The remedy
A new production secondary throttle return system configuration will be installed.