1985 MACK MH
5 recalls, 0 complaints - 27 TSBs
88V147000 Sep 6, 1988
SEAT BELTS
Defect Description
SEAT TETHER BELTS MAY NOT HAVE BEEN ADJUSTED DURING ASSEMBLY.
Consequence
DURING AN IMPACT, DRIVER AND/OR RIDER CAN MOVE FORWARDAND POSSIBLY STRIKE THE WINDSHIELD, EVEN WHEN WEARING A SEAT BELT.
Remedy
ADJUST SEAT TETHER BELT IF NECESSARY.
86V008000 Jan 17, 1986
STRUCTURE
Defect Description
LEFT OR RIGHT CAB STEP MAY CRACK IN ITS WELDED AREA DUE TO FLEXING OF THE STEP DURING ENTERING AND EXITING. CONSEQUENCE OF DEFECT: AS THE CRACKS EXTEND, THE TUBULAR STEP COULD PARTIALLY ... Read more
Remedy
INSTALL A REINFORCEMENT BRACE IF NO CRACKS ARE FOUND. IN ADDITION, REPLACE STEP IF CRACKS ARE PRESENT.
85V113000 Sep 17, 1985
SERVICE BRAKES, AIR
Defect Description
THE DUAL DOUBLE CHECK VALVE MAY NOT RELEASE THE PROPER AIR VOLUME TO THE BRAKE SYSTEM, CAUSING A SLIGHT TIMING DELAY BETWEEN THE TRACTOR AND THE TRAILER BRAKE SYSTEM. ... Read more
Remedy
INSTALL TWO NEW SLEEVES IN THE DUAL DOUBLE CHECK VALVE WHICH WILL INCREASE AIR FLOW.
85V057000 May 3, 1985
STEERING:LINKAGES:DRAG:LINK:CONNECTION
Defect Description
THE DRAG LINKS MAY HAVE BEEN INSTALLED INCORRECTLY ALLOWING DRAG LINK CLAMP BOLT TO AXLE BEAM INTERFERENCE. CONSEQUENCE OF DEFECT: DURING A TURNING MANEUVER, INCREASED STEERING EFFORT OR ... Read more
Remedy
ASSURE THAT DRAG LINKS ARE INSTALLED TO CORRECT INTERFERENCE CONDITION.
No complaints found for this vehicle.
Technical Service Bulletins, 1985 MACK MH
27 manufacturer communications from 22 unique bulletins. TSBs describe known problems and recommended fixes from the manufacturer.
Most Affected Components
| Component | Bulletins |
|---|---|
| 060000 ENGINE AND ENGINE COOLING | 12 |
| 110000 ELECTRICAL SYSTEM | 4 |
| 100000 POWER TRAIN | 4 |
| 180000 VEHICLE SPEED CONTROL | 2 |
| 980000 UNKNOWN OR OTHER | 2 |
| 251000 ELECTRONIC STABILITY CONTROL:AUTOMATIC (ASC) | 1 |
| 020000 SUSPENSION | 1 |
| 350000 EQUIPMENT | 1 |
KC-750
Jun 28, 2022
060000 ENGINE AND ENGINE COOLING
US10 Emission Engines - Diagnostic Trouble Code ( DTC ) SPN 1231 FMI 9 Troubleshooting.
KC-745
Jun 22, 2022
100000 POWER TRAIN
Automated Manual Transmission ( AMT ) I-Shift / mDRIVE - Ribbon Harness Replacement - Speed Sensor Bolts, Possible Fault Codes P1058 - 21 Or MID 130 PID 161 FMI 1
KC-2112
Jun 21, 2022
110000 ELECTRICAL SYSTEM
Programming Failure - Chassis With Cummins Engine And An Allison Transmission
KC-2112
Jun 21, 2022
100000 POWER TRAIN
Programming Failure - Chassis With Cummins Engine And An Allison Transmission
KC-2112
Jun 21, 2022
060000 ENGINE AND ENGINE COOLING
Programming Failure - Chassis With Cummins Engine And An Allison Transmission
KC-2143
Jun 21, 2022
180000 VEHICLE SPEED CONTROL
(Back Office) - Cruise Control Inoperative After Updating Software VECU5 Without ESP Package (UESP).
KC-2116
May 26, 2022
060000 ENGINE AND ENGINE COOLING
NOx Sensor Troubleshooting Guide - US10+OBD13 And Newer Emissions
KC-2131
May 26, 2022
060000 ENGINE AND ENGINE COOLING
USE FOR NEW VEHICLES (US21+OBD22 Emissions) - Intermittent Diagnostic Trouble Codes U02A3, U029D, U029E
KC-2158
May 26, 2022
060000 ENGINE AND ENGINE COOLING
Selective Catalytic Reduction (SCR) Muffler Troubleshooting Guide - US10+OBD13 And Newer Emissions
KC-2171
May 26, 2022
060000 ENGINE AND ENGINE COOLING
Temperature Sensor Troubleshooting Guide - US10+OBD13 And Newer
KC-2165
May 26, 2022
060000 ENGINE AND ENGINE COOLING
DEF Pump Troubleshooting Guide - US10+OBD13 And Newer Emissions
KC-714
May 25, 2022
060000 ENGINE AND ENGINE COOLING
Mack Chassis - Diagnostic Trouble Codes ( DTC's ) - P020113, P020213, P020313, P020413, P020513, P020613, Cylinders 1 Through 6 Injector A Open Circuit
KC-699
May 24, 2022
110000 ELECTRICAL SYSTEM
Mack Chassis - Bendix Vendor Configuration Program ( VCP ) Software Download Information
KC-698
May 24, 2022
060000 ENGINE AND ENGINE COOLING
Mack Chassis - Diesel Exhaust Fluid ( DEF ) System Cleaning/Flush After DEF Pump Failure Or System Contamination
KC-686
May 20, 2022
180000 VEHICLE SPEED CONTROL
(Back Office Only) Mack Chassis - Cruise Control Inoperative After Disabling The Electronic Stability Program (ESP)
KC-686
May 20, 2022
251000 ELECTRONIC STABILITY CONTROL:AUTOMATIC (ASC)
(Back Office Only) Mack Chassis - Cruise Control Inoperative After Disabling The Electronic Stability Program (ESP)
KC-663
May 18, 2022
060000 ENGINE AND ENGINE COOLING
Emcon (Spark Assist) Engine Aftertreatment System Troubleshooting Check Sheet - US07 Emissions
KC-653
May 17, 2022
060000 ENGINE AND ENGINE COOLING
Low Oil Pressure Diagnostic Process For 11 Liter Engines
KC-648
May 17, 2022
980000 UNKNOWN OR OTHER
Mack - PTO Pump Speed Calculator
KC-648
May 17, 2022
100000 POWER TRAIN
Mack - PTO Pump Speed Calculator
KC-2169
May 16, 2022
110000 ELECTRICAL SYSTEM
Low Voltage Disconnect (LVD), Function Description
KC-2170
May 16, 2022
020000 SUSPENSION
Electronically Controlled Suspension (ECS) Losing Air Pressure
KC-2172
May 16, 2022
110000 ELECTRICAL SYSTEM
No Start Condition After Over The Air Programing - VECU5 No Start "Safe State"
KC-2172
May 16, 2022
980000 UNKNOWN OR OTHER
No Start Condition After Over The Air Programing - VECU5 No Start "Safe State"
KC-2161
May 13, 2022
060000 ENGINE AND ENGINE COOLING
DEF Pump Cycling periodically Hours After Key Off
KC-627
May 9, 2022
350000 EQUIPMENT
Premium Tech Tool ( PTT ) Training Materials And Support Tools
KC-626
May 9, 2022
100000 POWER TRAIN
Mack Chassis - Vehicles Equipped With An Automated Manual Transmission Model F ( AMT-F, mDrive ), Premium Tech Tool ( PTT ) Gearbox Calibration Failure; Gearbox Calibration Operation Stops And Fails At 33% When Run With Transmission Removed
NHTSA Safety Investigations, MACK MH
Investigations opened by NHTSA into potential safety defects. These are separate from recalls and may or may not result in a recall.
PE88061
Opened: Jun 21, 1988 , Closed: Sep 12, 1988
SEAT TETHER FAILURE
SUMMARY: TRUCK DRIVER REPORTS SEAT TEATHERS ARE NOT PROPERLY ADJUSTED AT FACTORY, ALLOWING SEAT TO HINGE FORWARD IN A COLLISION. TEATHERS ACT AS RESTRAINERS, AND IF IMPROPERLY ADJUSTED SEAT BELT IS USELESS AS IT IS ATTACHED TO THE SEAT. DURING SUDDEN DECELERATION OR COLLISION THE WHOLE ASSEMBLY HING... Read more
MACK MH - All Years Overview
Complete safety history for the MACK MH across all model years (1982, 1993).
49
Total Recalls
0
Total Complaints
1
Investigations
0
Reported Crashes
0
Reported Fires
0
Reported Deaths
MACK MH - Year by Year
Compare recalls and complaints across model years. Click any year to see full details.