2020 Mack MD TSBs
105 Technical Service Bulletins across 12 categories
Categories
Fuel System
23 bulletinsVehicles Equipped With a Common Rail Fuel System - Aftermarket Secondary Fuel Filters, Important Information On Approved...
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Filters - US17+OBD16 toUS21+OBD23
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
fuel in the oil inspection
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,
DEF Pump Troubleshooting Guide - US10+OBD13 And Newer Emissions
Selective Catalytic Reduction (SCR) Muffler Troubleshooting Guide - US10+OBD13 And Newer Emissions
Aftertreatment Hydrocarbon Injector (AHI) Troubleshooting Guide - US10+OBD13 And Newer Emissions
USE FOR NEW VEHICLES (US21+OBD22 Emissions) - Intermittent Diagnostic Trouble Codes U02A3, U029D, U029E
Mack Chassis -Oil Diluted With Fuel; Fuel In Oil, Diagnostic Information - All Emissions Prior To US17+OBD16 (Common...
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Rail Fuel System), Model Year 2017 And Older
Mack Chassis - Diesel Exhaust Fluid ( DEF ) System Cleaning/Flush After DEF Pump Failure Or System Contamination
Diagnostic Trouble Code ( DTC ) P26E8 Intermittently Lighting The Malfunction Indicator Lamp ( MIL ); Possible Derate...
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Warning - US10+OBD13 And Newer Emissions, Model Year 2014 And Newer
Dye Test Procedure; Fuel System Leak Check - Common Rail Fuel System - US17+OBD16 And Newer Emissions, Common Model Year...
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2018 And Newer
Diagnostic Trouble Codes (DTC) P24F600 Or P24F700 - US14+OBD15 Emissions And Newer, Model Year 2016 And Newer
Dye Test Procedure; Fuel System Leak Check - Common Rail Fuel System - US17+OBD16 And Newer Emissions, Common Model Year...
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2018 And Newer
Volvo Chassis - Diagnostic Trouble Code (DTC) SA 0 FMI 0 or SPN 0 FMI 0 Present On Fault Code Readout - US10 And Newer...
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Emissions, Model Year 2011 And Newer
Mack Chassis - Where To Find The Body Builder Portal - Body Builder Manual ( BBM ) Information - US04 And Newer...
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Emissions, Model Year 2008 And Newer
Premium Tech Tool (PTT) Error Code 43: Service Regeneration Fails To Start; Service Regen Does Not Complete With Error...
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43 Displayed - US10+OBD13 And Newer Emissions, Common Model Year 2014 And Newer
Diesel Fuel Information - Acceptable Biodiesel, Fuel Blend For Summer And Winter - US07 And Newer Emissions, Model Year...
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2008 And Newer
Air In The Fuel System Tests, Common Rail Fuel System - US17+OBD16 and Newer Emissions
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
Engine
21 bulletinsVehicles 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: Turbo Compound (TC) Hot Side Noise, Diagnostic Information.
Some Mack MMD trucks could experience an issue with the ignition lock cylinder sticking.
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Trucks that experience a sticking lock cylinder could have a lock cylinder that becomes tight or sticks in the start position. If the above condition is found replace the ignition lock cylinder.
Barksdale Leveling Valve, Leak Test
CBR: Programming Failure - Chassis With Cummins Engine And An Allison Transmission
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.
Emcon (Spark Assist) Engine Aftertreatment System Troubleshooting Check Sheet - US07 Emissions
Manual Compression Test Adapter For Engines With Stainless Steel Injector Sleeves (Conical Tip Injectors) - US07 And...
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Newer Emissions, Model Year 2008 And Newer
Mack Low Oil Pressure Diagnostic Process For 11 Liter Engines
Mack Chassis - Diagnostic Trouble Codes ( DTC's ) - P020113, P020213, P020313, P020413, P020513, P020613, Cylinders 1...
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Through 6 Injector A Open Circuit
Mack Chassis - Equipped With An Automated Manual Transmission Model D or F (mDrive, AMT-D, AMT-F) - Transmission Oil...
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Leakage From Transmission Input Shaft Seal Or Output Shaft Seal - US10 And Newer Emissions, Common Model Years 2010 And Newer
Engine Oil Analysis Specifications - US10 And Newer Emissions
Variable Geometry Turbocharger ( VGT ) Function Test ( 2551-08-03-02 ), OBD13 Model Year ( MY ) 2014 And Newer
13 Liter Engines ONLY - Engine Coolant Pump Housing Leak; Coolant Found Around The Oil Cooler Duct Cover Or In Between...
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The Coolant Pump Housing And Oil Cooler Housing - Model Years 2019 And 2020
(Back Office Only) Vehicles Equipped With A Turbo Compound Engine - Report Of Frequent Air Compressor Cycling.
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Secondary Air System Air Pressure Decreases Slowly When Engine Is At Low Idle - US17+OBD16 And Newer Emissions, Model Year 2018 And Newer
Trucks Equipped With A Cummins Engine - Engine Preheat Icon Does Not Illuminate In The Instrument Cluster (IC) During...
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Engine Pre-heat (Intake Air Heater) Operation - Vehicles With 2018 Instrument Cluster Update, Model Year 2018 And Newer
Automated Manual Transmission( AMT ) ( I-Shift, mDRIVE ) Equipped Chassis, OBD13 And Newer - Light Turbo Surge ( Chuff )...
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During Skip Shifting
Other
20 bulletinsCBR - Mack Chassis - Through Shaft Bearing Retainer Breakage On Mack Carriers.
CBR - Mack Carrier Nut Adhesive Change.
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.
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: 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.
CBR: Diagnostic Trouble Code (DTC) P215A-64, Fault Code SPN 84 FMI 19
Back Office Mack Chassis - Secondary Gauge Set Up - Model Year 2018 and Newer.
Premium Tech Tool ( PTT ) Training Materials And Support Tools
DEF Pump Cycling periodically Hours After Key Off
Mack - PTO Pump Speed Calculator
(Back Office Only) Mack Chassis - Cruise Control Inoperative After Disabling The Electronic Stability Program (ESP)
Fitting, Static Hose Fill, Replacement
Mack MMD Models - Coolant Hose Obstructs Access To Oil Filter
Mack Chassis - Equipped With Bendix Fusion, With Or Without Lane Departure Warning ( LDWS ) - Diagnostic Trouble Code (...
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DTC ) SPN 70 FMI 9, Bendix Code 64 With Possible "Lane Departure Warning Malfunction" Message - US17 And Newer
Mack Chassis - FSB 563-008 Plugs, Pressure Protection Manifold - New Brass Plugs For Noregon Pressure Protection...
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Manifold (PPM)
MMD - Carrier Bearing Bolt Re-Torque
Electrical
19 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)).
Mack DEF Level (UQLS) Sensor Troubleshooting Guide - US17+OBD16 Emissions and Newer
Aftertreatment Diesel Exhaust Fluid (DEF) Tank, Level Sensor, Replacement
Aftertreatment Diesel Exhaust Fluid (DEF) Tank, Level Sensor, Replacement
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).
No Start Condition After Over The Air Programing - VECU5 No Start "Safe State"
Temperature Sensor Troubleshooting Guide - US10+OBD13 And Newer
Low Voltage Disconnect (LVD), Function Description
NOx Sensor Troubleshooting Guide - US10+OBD13 And Newer Emissions
DEF Level (UQLS) Sensor Troubleshooting Guide - US17+OBD16 Emissions and Newer
Aftertreatment Control Module ( ACM ) Diagnostic Trouble Codes ( DTC ) U0001-88 and U0010-88 Lighting The Malfunction...
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Indicator Lamp ( MIL ); Possible Derate Warning US10 And Newer Chassis
DEF Level (UQLS) Sensor Troubleshooting Guide - US17+OBD16 Emissions and Newer
MMD Alternator Pulley
EPRV Delete & Fuel Rail Pressure Sensor Update
Exhaust Gas Temperature Sensor Circuit Range/Performance
Mack Chassis - Particulate Matter (PM) Sensor Diagnostic Trouble Codes (DTC) Illuminating The Malfunction Indicator Lamp...
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(MIL); Tech Tip TT-014-2016 - US14+OBD16, US17+OBD16 And Newer Emissions, Common Model Year 2017 And Newer - To Be Used For EVERY
Aftertreatment Control Module (ACM) Offline/Not Visible/Missing From Control Unit Information in Premium Tech Tool (PTT)...
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- US10+OBD13 And Newer Emissions
Transmission
10 bulletinsTSB - Cable, Gear Selector, Replacement
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.
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
Mack Chassis - Vehicles Equipped With An Automated Manual Transmission Model F ( AMT-F, mDrive ), Premium Tech Tool (...
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PTT ) Gearbox Calibration Failure; Gearbox Calibration Operation Stops And Fails At 33% When Run With Transmission Removed
Mack Chassis - Automated Manual Transmission Model F ( AMT-F, mDrive ) - Short Transmission Replacement; Calibration...
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And/Or Shifting Problems Following Replacement Of A Short Transmission - US17+OBD2016 And Newer Emissions, Model Year 2018 And Newer
Automated Manual Transmission (AMT) (Spigot Bearing) Input Shaft Repair Kit And Shim Kit, Part Number Information,...
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Reference Guide - US07 And Newer Emissions, Model Year 2008 And Newer
Mack Chassis - Equipped With An Automated Manual Transmission (mDrive, AMT) AMT-C, AMT-D Or AMT-F - Transmission Oil...
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Specifications - Model Years 2010 To 2020
Automated Manual Transmission Gearbox Will Not Shift To High Range After Gearbox Repair; MID 130 PSID 24 FMI 1, P1072-92...
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Unintentional Disengagement Of High Range - US07 And Newer Emissions, Model Year 2008 And Newer
Transmission Oil Cooler Hose, Replacement
Suspension
3 bulletinsFrame lean can be caused by several seemingly isolated possibilities.
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The two most common are suspension and frame assembly issues.
Electronically Controlled Suspension (ECS) Losing Air Pressure
Mack Chassis - Front Hub With Unit-Bearings ( Unitized Wheel Bearings ), Inspection Information And Guidelines -...
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Commonly Model Year 2008 And Newer
Infotainment
3 bulletinsVehicle 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.
Noise On The AM Radio Band; Thumping, Ticking, Fluttering Sound On AM Radio Band - Model Year 2018 And Newer
Volvo Chassis - Certain Volvo Trucks Built After January 11, 2016 May Experience an Issue with the Instrument Cluster...
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Display
HVAC & Climate
2 bulletinsMack Chassis - SNM15-027 A/C Compressor Inspection Required For Warranty Repairs
Mack Medium Duty Refrigerant Label Replacement
Lighting
1 bulletinTSB-Charge Air Cooler t-clamp install.
Pre-Delivery & Maintenance
1 bulletinMack Dealer Support Communication - Selecting The Proper SR Area For Creating An eService
Software & Calibration
1 bulletinMack Chassis - Bendix Vendor Configuration Program ( VCP ) Software Download Information
Brakes
1 bulletinMack Chassis - Drive Axle Brake Chamber Rubbing Frame Or Brake Drum - Vehicles Built Between 7 July 2014 And 23 August...
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2019