The 1987 Mack Mh has 6 NHTSA recall campaigns affecting an estimated 51,348 vehicles. Recall repairs are always free at any authorized dealer. Last updated July 5, 2026.
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.
IN THE EVENT THE PRIMARY THROTTLE RETURN FAILS, FAILURE OF THE SECONDARY THROTTLE RETURN SYSTEM WOULD NOT PROVIDE PROTECTION AGAINST LOSS OF THROTTLE CONTROL.
A NEW PRODUCTION SECONDARY THROTTLE RETURN SYSTEM CONFIGURATION WILL BE INSTALLED.
SEAT TETHER BELT 11.0 INCHES LONG WAS INSTALLED INSTEAD OF THE 8.5 INCHES LONG BELT REQUIRED FOR THIS CHASSIS.
INCORRECT LENGTH BELT MAY NOT PROPERLY RESTRAIN OCCUPANTAND WOULD NOT COMPLY WITH FMVSS 210.
INSTALL CORRECT 8.5 INCH SEAT TETHER BELT.
SEAT TETHER BELTS MAY NOT HAVE BEEN ADJUSTED DURING ASSEMBLY.
DURING AN IMPACT, DRIVER AND/OR RIDER CAN MOVE FORWARDAND POSSIBLY STRIKE THE WINDSHIELD, EVEN WHEN WEARING A SEAT BELT.
ADJUST SEAT TETHER BELT IF NECESSARY.
THE PITMAN ARM TO DRAG LINK ANGLE IS OUT OF PHASE.
UNDER CERTAIN CONDITIONS, STEERING LINKAGE COULD GO INTOA TOGGLE CONDITION RESULTING IN A SLOW WHEEL RETURN AND IMPAIRED STEERINGCONTROL, CREATING THE POTENTIAL FOR A VEHICLE CRASH WITHOUT PRIOR WARNING.
REPLACE MISMARKED PITMAN ARM.
CROSS STEERING LEVERS MAY BE IMPROPERLY HEAT TREATED AND SUBJECT TO FAIL DURING NORMAL OPERATION.
SUCH FAILURE COULD CAUSE LOSS OF TRUCK CONTROL WITHOUTPRIOR WARNING AND RESULT IN A CRASH.
INSTALL NEW, PROPERLY HEAT TREATED STEERING LEVER.
ON RIGHT HAND STEERING ARM, KEYWAY MAY BE IN THE WRONG LOCATION CAUSING A TOGGLE CONDITION TO OCCUR UNDER CERTAIN CONDITIONS.
THIS COULD RESULT IN SLOW STEERING RETURN WITHOUT PRIORWARNING WHICH WOULD AFFECT STEERING CONTROL AND CREATE THE POTENTIAL FOR ACRASH.
REPLACE INCORRECT STEERING ARM.
Recall, complaint, and investigation records from official NHTSA datasets (FLAT_RCL, FLAT_CMPL, FLAT_INV), synced weekly. Counts reflect NHTSA records for the 1987 Mack Mh as of July 5, 2026. Complaint narratives are consumer-submitted and unverified. This page contains ads and affiliate links. Full methodology.