2023 Mack Anthem (an) TSBs
149 Technical Service Bulletins across 12 categories
Categories
Engine
36 bulletinsParker engine-mounted hydraulic pump service bulletin.
Mack Trucks Equipped With A Cummins Engine - Engine Preheat Icon Does Not Illuminate In The Instrument Cluster (IC)...
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During Engine Pre-heat (Intake Air Heater) Operation - Vehicles With 2018Instrument Cluster Update, Model Year2018 And Newer
Vehicles affected by this issue will show coolant runoff on the front rights side of the engine.
CBR - 13 Liter Engines ONLY - Engine Coolant Pump Housing Leak; Coolant Found Around The Oil Cooler Duct Cover Or In...
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Between The Coolant Pump Housing And Oil Cooler Housing.
The purpose of the 48V EATS heater system is to provide additional heat to the exhaust stream allowing the EATS to...
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become active earlier during acold start and during engine operation that produces low exhaust gas temperatures.
Inactive Code P25AE00 Being Generated After A Hard Pull And A Momentary Drop In Engine Oil Pressure (Low Oil Pressure)...
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(Possible Related Codes - SPN4811 , SPN 100 , PID 100)
Vehicles may present with oil leak coming from the clutch/flywheel housing and observation of burned clutch smell or clutch slipping.
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These symptoms can be mistaken as a crankshaft rear main seal leak, when the actual cause is the crankshaft adaptor O-ring.
CBR - 11L Engine block compatibility and Backward Conversion Parts Requirements
Emission Recall - Mack Trucks has determined that certain vehicles equipped with a model year (MY) 2022-2024 MP8 model...
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engines, may be equipped with an improper engine software calibration that does not match the engine certification label.
CBR: Automated Manual Transmission (AMT) Model D or F (mDrive and I-Shift, AMT-D, AMT-F) - Transmission Oil Leakage From...
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Transmission Input Shaft Seal Or Output Shaft Seal - US10 And Newer Emissions, Common Model Years 2010 And Newer
CBR: 11L, 13L, And 16L Engine Oil Analysis Specifications - US10 And Newer Emissions
Service Campaign: Mack trucks has determined that certain 2023 and 2024 model year AN vehicles could experience an issue...
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with the upper radiator hose collapsing or deforming causing it to leak or interfere with the engine lifting bracket.
Service Campaign: Mack trucks has determined that certain 2023 and 2024 model year AN vehicles could experience an issue...
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with the upper radiator hose collapsing or deforming causing it to leak or interfere with the engine lifting bracket.
CBR: Vehicles built with an 11 liter engine may experience a complaint of excessive fuel in the oil.
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It is possible that the source of the fuel is the rear fuel galley plug in the cylinder head. A new and improved fuel galley plug has been developed to resolve this issue.
CBR: Turbo Compound 2nd Generation - EGR And / Or DPF Diagnostic Trouble Codes (DTC), Diagnostic And Repair Information.
CBR: Turbo Compound (TC) Hot Side Noise, Diagnostic Information.
Service Campaign: Mack trucks has determined that certain AN, GR, PI, and TE model trucks built with a MP8 engine could...
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experience a reduced clamping load on the turbocharger mounting hardware causing the hardware to become loose. On affected vehicles follow the instructions below to remove the turbocharger and replace the mounting hardware and mounting gasket with new parts.
CBR: Vehicles built with an 11 liter engine may experience a complaint of excessive fuel in the oil.
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It is possible that the source of the fuel is the rear fuel galley plug in the cylinder head.
CBR: For vehicles equipped with an 11L engine, the plastic saddle bracket holding the a/c line on the left side of the...
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engine may move excessively and rub the area where it secures the line.
CBR: "Spitting" or "puffing" of air from purge valve.
Barksdale Leveling Valve, Leak Test
CBR: Programming Failure - Chassis With Cummins Engine And An Allison Transmission
CBR: Mack DEF Dosing Valve Diagnostic Trouble Codes (DTC) P202D00, P208E00, P103B00 - US10+OBD13 And Newer Emissions
Engine Control Module (EMS) Software (MSW) Information - Improvement List, Through June 2023 - US21+OBD2020 Emissions
Campaign - On certain Mack truck models built with a MP8 engines, there were some inconsistencies with the engine valve...
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and injector adjustments.
CBR: Model Year 2017 to Current - Fuel Filter Change ( Primary And Secondary ) For The EM - USA17 Emission Engines
Barksdale Height Control Valve Troubleshooting Guide
Barksdale Height Control Valve Troubleshooting Guide
Turbo Compound 2nd Generation - EGR And/Or DPF Diagnostic Trouble Codes (DTC), Diagnostic And Repair Information
TBS- Jumper Harness,Wiper Motor,Replacement
Turbo Compound 2nd Generation - EGR And/Or DPF Diagnostic Trouble Codes (DTC), Diagnostic And Repair Information
Programming Failure - Chassis With Cummins Engine And An Allison Transmission
11L, 13L, And 16L Engine Oil Analysis Specifications - US10 And Newer Emissions
(Back Office Only) - Engine Brake Vibration When In High Setting - 13L Engine With Variable Geometry Turbo ( VGT ) -...
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US17 And Newer Emissions (Common Rail Fuel System).
US10 Emission Engines - Diagnostic Trouble Code ( DTC ) SPN 1231 FMI 9 Troubleshooting.
Vehicles Equipped With An Automated Manual Transmission Model D or F ( AMT-D, AMT-F ) - Transmission Oil Leakage From...
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Transmission Input Shaft Seal Or Output Shaft Seal - US10 And Newer Emissions, Common Model Years 2010 And Newer.
Other
29 bulletinsCBR - Mack Chassis - Through Shaft Bearing Retainer Breakage On Mack Carriers.
CBR - Mack Carrier Nut Adhesive Change.
CBR - Parker F3 Hydraulic Pump Troubleshooting.
CBR - No Start Condition After Over the Air Programing.
CBR - Carb 24 Phase 1 - 48V Diagnostics Guide.
CBR - To correct the MID136 SID 66 FMI 7 fault code the latest Bendix VCP file will need to downloaded.
CBR - A significant GPS reporting issue is affecting fleet operations, with trucks maintaining back-office communication...
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but failing to transmit GPS location data.
Mack Chassis - Rear Axle Overheat
CBR: Diagnostic Trouble Code (DTC) P107471 - AMT-F
CBR: To correct the MID136 SID 66 FMI 7 fault code the latest Bendix VCP fi le will need to be downloaded.
CBR: Telematics Gateway (TGW) Connect Ability Issues
CBR: Diagnostic Trouble Code (DTC) P107471 - AMT-F
CBR: Diagnostic Trouble Code (DTC) P107471 -AMT-F
CBR -Telematics Gateway (TGW) Connect Ability Issues
CBR - Diagnostic Trouble Code (DTC) P107471 - AMT-F
CBR: TGW Will Not Connect After SIM Card Replacement
CBR: Frame Or Cab Lean
Mack Trucks now offer an improved HD Inter-Axle Through Shaft for the CRD 125, 150, 180, and 200 family carriers.
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The new HD shaft went into production on January 23rd, 2023 for 2.54 - 3.50 axle ratios and April 1st, 2023 for 3.56 - 3.98 ratios. The new HD through shaft is an upgrade over the current standard shaft and can now be used as a replacement part instead of the standard shaft. The new HD shaft has a new design to increase strength, longevity and life over the standard shaft.
Air Restriction Indicator
iLok Fastener Torque
CBR: Diagnostic Trouble Code (DTC) U1FFF68 - Factory Mode Active, Event Information - Model Year (MY) 2023
CBR: Diagnostic Trouble Code (DTC) P215A-64, Fault Code SPN 84 FMI 19
New TSB for oil galley plug leaking.
Diagnostic Trouble Code (DTC) P107471 - AMT-F
National Driver Seat Armrest Missing
Mack Chassis - Parker F-3 Hydraulic Pump Installation - Model Year (MY) 2023
Bendix Wingman Fusion, Front Radar Fulfillment
Passenger Seat Armrest Missing
Back Office Mack Chassis - Secondary Gauge Set Up - Model Year 2018 and Newer.
Fuel System
17 bulletinsEmissions - EC0039 MST21 Failure to Detect P20EE - AN, CHU.
Cummins Exhaust Aftertreatment System (EATS) catalysts may experience cracking, which may be attributed to excessive...
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vertical vibration in the exhaust stack. To mitigate this issue, a modification to the exhaust stack length is required.
If oil dilution is suspected refer to the applicable CBR solution below: CBR-659Mack Chassis - Oil Diluted With Fuel;...
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Fuel In Oil, Diagnostic Information - All Emissions, All Model Years
CBR: Overhead Wear Overview - Model Year2018 To Current (Common Rail Fuel System ONLY)
CBR: Vehicle Speed Factor (K-Factor) Programming - Speed Factor Value Incorrect When Calculated In Premium Tech Tool...
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(PTT); Speedometer Reading Incorrectly Following A Change To Vehicle Speed Factor - US17+OBD16 And Newer Emissions, Common Model Year 2018.
Service Campaign: Upper Radiator Hose Replacement (4.00 Degree Crank Angle)
Fleet Campaign: CNG Exhaust Pipe Modification
CBR: Intermittent Diagnostic Trouble Codes U02A3,U029D, U029E - USE FOR NEW VEHICLES (US21+OBD22 Emissions)
CBR - Mack Selective Catalytic Reduction (SCR) Muffler Troubleshooting Guide - US10+OBD13 And Newer Emissions
CBR: Diagnostic Trouble Code (DTC) P008A - Low Pressure Fuel System Pressure - Too Low
Diagnostic Trouble Codes (DTC) P208064, P208464, P242B64 and P246F64 Lighting The Malfunction Indicator Lamp (MIL) -...
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US17+OBD19 And Newer Emissions, Model Years 2020 and Newer
Mack DEF Pump Troubleshooting Guide - US10+OBD13 And Newer Emissions
USE FOR NEW VEHICLES (US21+OBD22 Emissions) - Intermittent Diagnostic Trouble Codes U02A3, U029D, U029E
Aftertreatment Hydrocarbon Injector (AHI) Troubleshooting Guide - US10+OBD13 And Newer Emissions.
Selective Catalytic Reduction (SCR) Muffler Troubleshooting Guide - US10+OBD13 And Newer Emissions.
DEF Pump Troubleshooting Guide - US10+OBD13 And Newer Emissions.
Premium Tech Tool (PTT) - Message For Data Mismatch, Product Configuration Mismatch; Instruction To Run An Accessory Kit...
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Displayed When Attempting To Run Diagnostics For Diagnostic Trouble Codes (DTC) Or Programming - US10+OBD13 And Newer Emissions,
Electrical
16 bulletinsCBR - Mack DEF Level (UQLS) Sensor Troubleshooting Guide - US17+OBD16 Emissions to US22+OBD2023 (DOES NOT APPLY TO AN(4)...
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and PR(4)).
CBR - Mack Temperature Sensor Troubleshooting Guide
CBR - When an OTA (Over-The-Air) job starts to program the VECU blocks the starter relay out, if the job ends in a...
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Critical failure, the vehicle will remain in Safe State.
Mack DEF Level (UQLS) Sensor Troubleshooting Guide - US17+OBD16 Emissions and Newer
CBR: US17 GHG Common Rail Fuel System Component Electrical Faults - Model Year 2017 To 2024
CBR: Diagnostic Trouble Code (DTC) U010187- Lost Communication With TECU
Aftertreatment Diesel Exhaust Fluid (DEF) Tank, Level Sensor, Replacement
Diagnostic Trouble Code (DTC) P103200: Particulate Matter Sensor Removed from Exhaust - US21+OBD22 Emissions
Mack NOx Sensor Troubleshooting Guide - US10+OBD13 And Newer Emissions
Mack NOx Sensor Troubleshooting Guide - US10+OBD13 And Newer Emissions
CBR: Diagnostic Trouble Code (DTC) P225C00 : NOx1 Sensor Stuck High - US17+OBD2019 And Newer Emissions
Mack MMD Alternator Pulley
Diagnostic Trouble Code ( DTC ) P10AE Logged In TECU With ACTIVE Or INACTIVE Status, Fault Code Cannot Be Cleared;...
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Possibly Accompanied By P105817 And P105818 - US10+OBD13 And Newer Emissions (16-Pin Diagnostic Connector), Commonly Model Year 2014
DEF Level (UQLS) Sensor Troubleshooting Guide - US17+OBD16 Emissions and Newer.
NOx Sensor Troubleshooting Guide - US10+OBD13 And Newer Emissions.
(Back Office) - Cruise Control Inoperative After Updating Software VECU5 Without ESP Package (UESP).
Transmission
14 bulletinsIf the vehicle door is open and the truck is in neutral, a popup message may appear on the Driver Information Display...
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(DID) instructing the operator to shift into neutral. If this message appears while the vehicle is already in neutral, the Instrument Cluster (IC)requires a software update.
CBR - Mack Chassis - Timing Gear Plate Repair
CBR: Mack chassis with an mDRIVE transmission, there have been reports of complete shift assemblies and TECUs being...
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replaced due to technicians being unable to pinpoint the source of the air leak.
CBR: ZF/TRW Steering Gear Side Cover Leak
CBR: Equipped With An Automated Manual Transmission Model D or F ( AMT-D, AMT-F, mDrive) Missing X1 Value In VDA And...
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Default Settings Guidelines, ParameterP1AOB; Fault Code P1052-54, Error 40,Or Error 18 Encountered During Clutch Or Tran.
CBR - Automated Manual Transmission ( AMT ) Flywheel Pilot Bearing Wear On Input Shaft.
Parts Sales and Marketing Bulletin: Mack Trucks is excited to announce an additional year warranty program on REMACK...
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AMT mDRIVE Complete Transmissions. This extended warranty of 3 years or 350,000 miles on the transmission will be applicable when dealer installed, required parts are installed and is registered via eService.
Service Campaign: Certain Mack AN, GR and PI model trucks built with a D4 Dual PTO, have the incorrect length PTO mounting studs installed.
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With the incorrect studs installed there is a possibly of the retaining nuts coming loose and in certain cases result in a loss of gearbox fluid. Follow the instructions in this service campaign to remove and replace the PTO mounting studs with longer ones.
CBR: Automated Manual Transmission ( AMT ) -Transmission Electronic Control Unit ( TECU ) MID130 PSID 29 FMI 7 /P10AE81...
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Fault Codes Being Generated
CBR: Automated Manual Transmission (AMT) Transmission Kickdown Mode
CBR: Timing Gear Plate Repair.
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This solution provides supplementary information to be used when installing a Timing Gear Plate with Integrated Seal.
Timing Gear Plate Inspection
Warranty Automated Manual Transmission ( AMT, I-Shift, mDrive ) Control Housing Assembly; Guidelines For Filing A Claim...
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For Chassis Return Visit With Transmission Issues After A Repair Requiring Control Housing Removal And Reinstallation - US07 And N.
Automated Manual Transmission ( AMT ) I-Shift / mDRIVE - Ribbon Harness Replacement - Speed Sensor Bolts, Possible Fault...
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Codes P1058 - 21 Or MID 130 PID 161 FMI 1
Infotainment
8 bulletinsCBR: Drivers Information Display (DID) Inoperative/Goes Blank During Vehicle Operation
CBR: Drivers Information Display (DID)Inoperative After Cluster Replacement And Programming
CBR - Drivers Information Display (DID) Inoperative/Goes Blank During Vehicle Operation
CBR - Drivers Information Display (DID) Inoperative After Cluster Replacement And Programming
CBR: After cluster replacement and programming, the Driver Information Display (DID) may not function as designed.
CBR: Vehicle Overspeed Warning Comes Active At A Lower Speed Than Expected; Vehicle Overspeed Warning In Driver...
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Information Display (DID) - Model Year 2018 And Newer With New Style Instrument Cluster
Infotainment System - Volume Drop During A Phone Call, Phone Connected Via Bluetooth
Vehicle Overspeed Warning Comes Active At A Lower Speed Than Expected; Vehicle Overspeed Warning In Driver Information...
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Display (DID) - Model Year 2018 And Newer With New Style Instrument Cluster.
Body & Paint
7 bulletinsCBR - Mack Chassis - Dash Panel Cracking at Mounting to BIW.
CBR - Mack Chassis - AN And GR Models - Door Glass Shattering.
Remote Control Central Door Lock, Programming; Key Fob Cannot Be Programmed Or Does Not Work After Programming - Model...
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Year 2018 And Newer
This CBR solution provides detailed instructions for diagnosing and addressing window glass shattering issues, including...
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replacement specifications, interference checks, fastener verification, and reinforcement tab adjustments to ensure proper installation and functionality.
CBR: Mack Chassis - Day Cab Glass Breakage
CBR - Mack Chassis - Day Cab Glass Breakage
Hood Latch Assembly, Retrofit
Suspension
6 bulletinsCBR - Z Spring Bracket Wear.
Frame lean can be caused by several seemingly isolated possibilities.
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The two most common are suspension and frame assembly issues.
CBR - Driveline Noise, Suspension Ride Height Too High, Suspension Will Not Exhaust - Chassis Built 2016w01 And Newer.
Vehicles Equipped With Chalmers Suspension - Frame Bracket Hardware Loose or Interfering
Hub Cap, Leaking
New TSB- Hub cap leaking
Pre-Delivery & Maintenance
6 bulletinsService Campaign: TGW3 Non-Communication
Service Campaign: Mack trucks has determined that certain AN, GR, PI, TE, and LR model trucks built with TGW3 have...
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stopped communicating after production.
CBR - Accelerator Pedal: Inspection Instructions
Service Campaign: Upper Radiator Hose Replacement (2.25 Crank Angle)
Service Literature Published and Released in May, 2023
CBR: Mack - Pre-Delivery Inspection (PDI) Torque Values
Brakes
6 bulletinsCBR: Mack Anthem (AN) And Pinnacle (PI) -Bendix ABS Fault SPN 807 FMI 13 Blink code 19-4
CBR - Brake Caliper Concerns And Premature Brake Pad Wear - Model Year 2023 - 2024
CBR: Chassis Equipped With VECU5 Active Datalink/Communication Faults For Multiple Modules; ABS And SRS Communication...
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Faults
CBR - Active "Set Park Brake" Message On Drivers Information Display (DID).
CBR: Lift Axle Lowers During An Anti-lock Braking System (ABS)Breaking Event Or When Weight Is Added To The 5th...
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Wheel/Rear Suspension- AN Model
CBR: SNM 20-005 - HD Disc Brake Rotor Upgrade
Lighting
3 bulletinsCBR: The procedure to eliminate the Mack Chassis "Air Restriction Light On" seen in the cluster is to confirm that the...
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parameter YYT is set to "Enable" with Premium Tech Tool.
TSB-Charge Air Cooler t-clamp install.
Mack Chassis - Incorrect Fog Lamp Electric Terminal Pinning - AN, GR, PI Models
Tires & Wheels
1 bulletinCBR: Vehicles Equipped With A Lift Axle - Wheel Speed Fault Code SPN 793, SPN 794 Set When Axle Is Up