Mack TRUCK

Published

1994-03-15

Model years

1987–1992

NOTE: VEHICLES EQUIPPED WITH ROBERT BOSCH P7100 MECHANICALLY GOVERNED FUEL PUMPS. HIGH ENGINE VIBRATION LEVELS COULD RESULT IN ACCELERATED WEAR OF THE SECONDARY THROTTLE RETURN MECHANISM. IN THE EVENT OF FAILURE OF THE PRIMARY RETURN MECHANISM, A WORN SECONDARY MECHANISM MIGHT NOT RETURN THE ENGINE TO IDLE WHEN THE ACCELERATOR PEDAL IS RELEASED. THIS COULD RESULT IN LOSS OF VEHICLE CONTROL. CORRECTION: LINKAGE WHICH IS SUBJECT TO WEAR WILL BE REPLACED WITH A MULTI-STRAND COILED CABLE.