Problems owners report
Complaints filed with NHTSA about the 1997 Mack CH, by the system named in each complaint. One complaint can name several.
- Engine and engine cooling1
NHTSA ODI complaints (public domain) · updated 23 Oct 2026 · 0 injuries and 0 deaths reported
Compared with other years
NHTSA ODI complaints by model year
Fatal crashes in the US
From 2020 to 2023, 5 1997 CH vehicles were involved in crashes on US public roads in which someone died; 0 people died inside them, and 1 of the vehicles rolled over. This is a count, not a crash rate: it grows with the number of cars on the road.
NHTSA Fatality Analysis Reporting System (FARS), crash years 2020–2023 (public domain)
Recalls in Canada
2 Transport Canada recalls for the 1997 Mack CH.
| 2002189 15 Oct 2002 | Brakes On certain vehicles, additional axles were installed to increase the gross vehicle weight capacity but the parking brake capacity was not increased accordingly … |
| 1997229 22 Dec 1997 | Steering IF THE DRAG LINK AXLE STEERING ARM CONNECTION IS NOT TORQUED AND THE COTTER PIN IS NOT INSTALLED, THE NUT COULD BACK OFF DURING VEHICLE OPERATION. IF THE NUT B… |
Transport Canada Vehicle Recalls Database · Contains information licensed under the Open Government Licence – Canada
Recalls
ON CERTAIN CHASSIS BUILT WITH LNG ENGINES, THE NEXGEN LNG TANK'S PRIMARY AND SECONDARY RELIEF VALVES COULD FAIL TO OPEN AND RELIEVE TANK PRESSURE.
VEHICLE DESCRIPTION: CLASS 8 HEAVY DUTY TRUCKS. DURING ASSEMBLY, INSUFFICIENT TORQUE OCCURRED OF THE DRAG LINK TO THE AXLE STEERING ARM CONNECTION. IF THE DRAG LINK TO AXLE STTERING ARM CONNECTION IS NOT TORQUED AND THE COTTER PIN IS NOT INSTALLED, THE NUT COULD BACK OFF DURING VEHICLE OPERATION.
Whether a recall was fixed on a particular car is known only to the manufacturer: check the VIN at nhtsa.gov/recalls.
NHTSA recalls · summaries in NHTSA's own words
Service bulletins
What Mack told its dealers about the 1997 Mack CH: known faults, fixes and updates.
| Bulletin | Summary |
|---|---|
| 52418 | POWER STEERING SEAL UPDATE SHEPPARD M100 STEERING GEAR USED ON CH MODEL. *TW |
| 10232605 | Mack Chassis - SB - 230 - 001 V-MAC I To V-MAC II Conversion Kit |
| 10218913 | 2009 Document reformatted to be published as a TSB in Impact. Day cab Conversion Closure Panel |
| 10215315 | Programming Failure - Chassis With Cummins Engine And An Allison Transmission |
| 10215312 | (Back Office) - Cruise Control Inoperative After Updating Software VECU5 Without ESP Package (UESP). |
| 10215289 | 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 |
| 10215287 | US10 Emission Engines - Diagnostic Trouble Code ( DTC ) SPN 1231 FMI 9 Troubleshooting. |
| 10213658 | Emcon (Spark Assist) Engine Aftertreatment System Troubleshooting Check Sheet - US07 Emissions |
| 10213652 | Low Oil Pressure Diagnostic Process For 11 Liter Engines |
| 10213644 | Premium Tech Tool ( PTT ) Training Materials And Support Tools |
| 10213642 | No Start Condition After Over The Air Programing - VECU5 No Start "Safe State" |
| 10213641 | Temperature Sensor Troubleshooting Guide - US10+OBD13 And Newer |
| 10213640 | Electronically Controlled Suspension (ECS) Losing Air Pressure |
| 10213639 | Low Voltage Disconnect (LVD), Function Description |
| 10213638 | DEF Pump Troubleshooting Guide - US10+OBD13 And Newer Emissions |
| 10213637 | DEF Pump Cycling periodically Hours After Key Off |
| 10213636 | Selective Catalytic Reduction (SCR) Muffler Troubleshooting Guide - US10+OBD13 And Newer Emissions |
| 10213633 | USE FOR NEW VEHICLES (US21+OBD22 Emissions) - Intermittent Diagnostic Trouble Codes U02A3, U029D, U029E |
| 10213632 | NOx Sensor Troubleshooting Guide - US10+OBD13 And Newer Emissions |
| 10213630 | 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 |
| 10213625 | Mack - PTO Pump Speed Calculator |
| 10213612 | (Back Office Only) Mack Chassis - Cruise Control Inoperative After Disabling The Electronic Stability Program (ESP) |
| 10213609 | Mack Chassis - Diesel Exhaust Fluid ( DEF ) System Cleaning/Flush After DEF Pump Failure Or System Contamination |
| 10213608 | Mack Chassis - Bendix Vendor Configuration Program ( VCP ) Software Download Information |
| 10213605 | Mack Chassis - Diagnostic Trouble Codes ( DTC's ) - P020113, P020213, P020313, P020413, P020513, P020613, Cylinders 1 Through 6 Injector A Open Circuit |
NHTSA manufacturer communications (public domain)