1993 MACK CH
5 recalls, 0 complaints - 28 TSBs
00V019003 May 11, 2000
TRAILER HITCHES:FIFTH WHEEL ASSEMBLY
Defect Description
VEHICLE DESCRIPTION: HEAVY DUTY CLASS 8 TRUCKS EQUIPPED WITH FONTAINE FIFTH WHEEL ASSEMBLIES. THE FIFTH WHEEL MOUNTING PLATES CAN CRACK.
Consequence
UNDER THE TRAILER LOADING, THE MOUNTING PLATE COULD EVENTUALLY FAIL DUE TO FATIGUE.
Remedy
DEALERS WILL INSPECT AND REPLACE THE MOUNTING PLATES THAT ARE CRACKED.
95E003010 Jun 27, 1995
SERVICE BRAKES, AIR:SUPPLY:HOSES, LINES/PIPING, AND FITTINGS
Defect Description
AIR SYSTEM BLOCKAGE IN THE AIR DRYER OCCURS DEGRADING THE MOISTURE REMOVING CAPABILITIES OF THE DRYER WHEN THE VEHICLE IS OPERATED IN A COLD ENVIRONMENT AND MOISTURE ACCUMULATES AND FREEZES IN THE AIR DRYER OR IN THE LINE BETWEEN THE DRYER AND THE AIR SYSTEM RESERVOIR. THE AIR DRYER CAN BECOME OVERP... Read more
Consequence
IF THE AIR DRYER SEPARATES FROM THE BASE, THE CARTRIDGE CAN SEPARATE SUFFICIENTLY ENOUGH TO CAUSE PERSONAL INJURY OR PROPERTY DAMAGE.
Remedy
DEALERS WILL EQUIP AIR SYSTEMS WITH A PRESSURE RELIEF VALVE TO BE LOCATED BETWEEN THE COMPRESSOR AND THE AIR DRYER. THIS PRESSURE RELIEF VALVE IS INTENDED TO VENT IF EXCESSIVE PRESSURE DEVELOPS IN THE AIR DRYER.
94V216000 Nov 1, 1994
POWER TRAIN:DRIVELINE:CENTER SUPPORT BEARING
Defect Description
THE DRIVESHAFT CENTER BEARING SUPPORT BRACKET CAN CRACK AND BREAK.
Consequence
IF THIS HAPPENS, THE DRIVESHAFT WILL WOBBLE AND CAN SEPARATE. SEPARATION CAN RESULT IN DAMAGE TO OTHER COMPONENTS OF THE VEHICLE OR LOOSE FRAGMENTS CAN FALL ONTO THE ROADWAY PRESENTING A HAZARD TO OTHER DRIVERS.
Remedy
DEALERS WILL REPLACE THE CENTER BEARING HANGER BRACKET.
93V137000 Aug 20, 1993
ENGINE AND ENGINE COOLING:COOLING SYSTEM:FAN
Defect Description
THE ENGINE COOLING FAN BLADES MAY BREAK DUE TO INADEQUATE BLADE STRENGTH AROUND THE RIVETS THAT ATTACH THE BLADES TO THE FAN SPIDER.
Consequence
IF COMPLETE FRACTURE OF THE FAN BLADE OCCURS, IT COULDBE PROPELLED OUTSIDE THE FAN SHROUD, INJURING PERSON(S) IN THE VICINITY OFTHE TRUCK.
Remedy
AN IMPROVED FAN WILL BE INSTALLED ON THESE VEHICLES.
93V024000 Feb 16, 1993
TRAILER HITCHES
Defect Description
THE CARRIER YOKE BOLTS WERE MANUFACTURED WITH WORN ROLLING THREAD DIES, CAUSING STRESS CONCENTRATIONS WHICH CAUSED CRACKS DURING THE QUENCHING PROCESS.
Consequence
THIS CONDITION CAN CAUSE BOLT FAILURE AND ALLOW THEDRIVELINE TO SEPARATE FROM THE CARRIER ASSEMBLY.
Remedy
REPLACE THE CARRIER YOKE BOLTS.
No complaints found for this vehicle.
Technical Service Bulletins, 1993 MACK CH
28 manufacturer communications from 23 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 |
| 015000 STEERING:HYDRAULIC POWER ASSIST SYSTEM | 1 |
| 251000 ELECTRONIC STABILITY CONTROL:AUTOMATIC (ASC) | 1 |
| 020000 SUSPENSION | 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-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-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-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-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-699
May 24, 2022
110000 ELECTRICAL SYSTEM
Mack Chassis - Bendix Vendor Configuration Program ( VCP ) Software Download Information
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-648
May 17, 2022
980000 UNKNOWN OR OTHER
Mack - PTO Pump Speed Calculator
KC-653
May 17, 2022
060000 ENGINE AND ENGINE COOLING
Low Oil Pressure Diagnostic Process For 11 Liter Engines
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-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
KC-627
May 9, 2022
350000 EQUIPMENT
Premium Tech Tool ( PTT ) Training Materials And Support Tools
09B014
Feb 18, 1997
015000 STEERING:HYDRAULIC POWER ASSIST SYSTEM
POWER STEERING SEAL UPDATE SHEPPARD M100 STEERING GEAR USED ON CH MODEL. *TW
NHTSA Safety Investigations, MACK CH
Investigations opened by NHTSA into potential safety defects. These are separate from recalls and may or may not result in a recall.
PE02094
Opened: Dec 11, 2002 , Closed: May 30, 2003
INTEGRAL HUB AND BEARING ASSEMBLY
THE COMPANIES INVOLVED IN THIS MATTER ARE: SKF (HUB MFR), ARVINMERITOR (FRONT AXLE MFR), AND MACK (MANUFACTURER OF CLASS VIIITRACTOR/TRUCKS).SKF IDENTIFIED MANUFACTURING DEFECTS FOR SPECIFIC BUILD DATES ON FRONT AXLE HUB AND BEARINGS (WHEEL BEARINGS) SUPPLIED TO ARVINMERITOR.AS A RESULT, ARVINMERITO... Read more
MACK CH - All Years Overview
Complete safety history for the MACK CH across all model years (1987, 2007).
91
Total Recalls
8
Total Complaints
1
Investigations
2
Reported Crashes
1
Reported Fires
12
Reported Deaths
MACK CH - Year by Year
Compare recalls and complaints across model years. Click any year to see full details.
| Year | Recalls | Complaints | |
|---|---|---|---|
| 2007 | 3 | 0 | View |
| 2006 | 2 | 0 | View |
| 2005 | 3 | 0 | View |
| 2004 | 5 | 0 | View |
| 2003 | 7 | 0 | View |
| 2002 | 6 | 2 | View |
| 2001 | 5 | 0 | View |
| 2000 | 7 | 0 | View |
| 1999 | 7 | 0 | View |
| 1998 | 3 | 0 | View |
| 1997 | 2 | 1 | View |
| 1996 | 3 | 1 | View |
| 1995 | 2 | 0 | View |
| 1994 | 1 | 1 | View |
| 1993 (current) | 5 | 0 | |
| 1992 | 6 | 1 | View |
| 1991 | 5 | 0 | View |
| 1990 | 5 | 0 | View |
| 1989 | 7 | 0 | View |
| 1988 | 6 | 0 | View |
| 1987 | 1 | 0 | View |