2018 Mack Gu TSBs
243 Technical Service Bulletins across 14 categories
Categories
Fuel System
64 bulletinsEmissions Campaign: Mack Trucks has determined that certain 2014 - 2018 commercial model year CXU, GU, LEU, LR, MRU...
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Vehicles require a replacement Diesel Particulate Filter (DPF) along with updated software.
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.
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,
Diagnostic Trouble Codes ( DTC ) P2080, P2084, P242B Lighting The Malfunction Indicator Lamp ( MIL ) - US14+OBD16,...
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US17+OBD16, And US17+OBD18 Emissions, Model Years 2017 To 2019
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
Mack Chassis - Diagnostic Trouble Codes ( DTC's ) P24A0 And P249F Lighting The Malfunction Indicator Lamp ( MIL ) -...
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US14+OBD15, US14+OBD16 (Common Model Years 2016 And 2017), US17+OBD16 And Newer ( Common Rail Fuel System, Model Year 2018)
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
Vehicle Speed Factor (K-Factor) Programming - Speed Factor Value Incorrect When Calculated In Premium Tech Tool (PTT);...
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Speedometer Reading Incorrectly Following A Change To Vehicle Speed Factor - US17+OBD16 And Newer Emissions, Common Model Year 2018
Mack Chassis - Diagnostic Trouble Codes ( DTC's ) P24A0 And P249F Lighting The Malfunction Indicator Lamp ( MIL ) -...
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US14+OBD15, US14+OBD16 (Common Model Years 2016 And 2017), US17+OBD16 And Newer ( Common Rail Fuel System, Model Year 2018)
Diagnostic Trouble Codes (DTC) P0069-64, P10EC-00, P0191-64 and P240F-00 In Different Combinations, Occurrences, And...
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Time Stamps (Two To Four Codes), Possible Vehicle Derate - US17+OBD16, US17+OBD18 Emissions, Common Model Years 2018 And 2019
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
Mack Chassis - Diagnostic Trouble Code ( DTC ) P0420 Illuminating The Malfunction Indicator Lamp (MIL) - US17+OBD16 And...
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US17+OBD18 (GHG17) Emissions (Common Rail Fuel System) - Commonly Model Years 2018 And 2019
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
Mack Chassis - Diagnostic Trouble Code ( DTC ) P009E-73 - Fuel Pressure Relief Control Performance / Stuck Off -...
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US17+OBD16 And US17+OBD18 ( GHG17 ) Emissions (With Common Rail Fuel System), Commonly Model Years 2018 And 2019
Air In The Fuel System Tests, Common Rail Fuel System - US17+OBD16 and Newer Emissions
Diagnostic Trouble Codes ( DTC ) P2080, P2084, P242B Lighting The Malfunction Indicator Lamp ( MIL ) - US14+OBD16,...
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US17+OBD16, And US17+OBD18 Emissions, Model Years 2017 To 2019
Fuel Filter Housing, Replacement
Mack Chassis - Diagnostic Trouble Code ( DTC ) SPN4094, Check List - US10 Emissions
Common Rail Fuel System Faults - Diagnostic Trouble Codes (DTC) P0094, P228F, P016F, P0087,P00C6, P0257, P2A17, P2A1F,...
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P008A; Repair Information - US17+OBD16, US17+OBD18, and US17+OBD19 Emissions, Model Years 2018 To 2020
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
Diagnostic Trouble Codes (DTC) P0069-64, P10EC-00, P0191-64 and P240F-00 In Different Combinations, Occurrences, And...
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Time Stamps (Two To Four Codes), Possible Vehicle Derate - US17+OBD16, US17+OBD18 Emissions, Common Model Years 2018 And 2019
Diagnostic Trouble Codes (DTC) P0069-64, P10EC-00, P0191-00 and P240F-00 In Different Combinations, Occurrences, And...
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Time Stamps (Two To Four Codes), Possible Vehicle Derate - US17+OBD16, US17+OBD18 Emissions, Common Model Years 2018 And 2019
Diagnostic Trouble Codes (DTC) P0087 Fuel Rail/System Pressure To Low, P016F Closed Loop Fuel Pressure Control At Limit...
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- Pressure Too Low, P228F Fuel Pressure Regulator Exceeded Learning Limits - Too High; Damaged Lip Seal On Secondary Fuel Filter; Possible Uneven Operation - US17+OBD16 And Newer Emissions (Common Rail Fuel System), Model Year 2018 And Newer
Diagnostic Trouble Codes (DTC) P0087 Fuel Rail/System Pressure To Low, P016F Closed Loop Fuel Pressure Control At Limit...
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- Pressure Too Low, P228F Fuel Pressure Regulator Exceeded Learning Limits - Too High; Damaged Lip Seal On Secondary Fuel Filter; Possible Uneven Operation - US17+OBD16 And Newer Emissions (Common Rail Fuel System), Model Year 2018 And Newer
Diagnostic Trouble Codes (DTC) P0069-64, P10EC-00, P0191-00 and P240F-00 In Different Combinations, Occurrences, And...
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Time Stamps (Two To Four Codes), Possible Vehicle Derate - US17+OBD16, US17+OBD18 Emissions, Common Model Years 2018 And 2019
Grounding Bus Bar On Frame Rail Stud; Inspection To Be Performed For Power And Ground, Data Link DTCs - US13 And Newer...
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Emissions, Common Model Year 2018 And Newer
Common Rail Fuel System - Diagnostic Trouble Code ( DTC ) P0094-00 Fuel System Leak Detected, Small Leak, Diagnostic...
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Information - US17+OBD16 And US17+OBD18 Emissions, Common Model Years 2018 And 2019
Mack Chassis - Diagnostic Trouble Codes ( DTC ) P208E And P103B Logging With Possible Derate ( SCR Inducement ) -...
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US14+OBD13, US14+OBD15, US14+OBD16 And US17+OBD16 And Newer Emissions, Common Year Models 2015 And Newer
Mack Chassis - Vehicles Equipped With A Vertical Selective Catalytic Reduction (SCR) System - Diagnostic Trouble Codes (...
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DTC ) P1031 With Possible P24DA Lighting The Malfunction Indicator Lamp ( MIL ) - US17+OBD16 (GHG17, Common Rail Fuel System) Emissions, Commonly Model Year 2018
Mack Chassis - Diagnostic Trouble Code ( DTC ) P009E-73 - Fuel Pressure Relief Control Performance / Stuck Off -...
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US17+OBD16 And US17+OBD18 ( GHG17 ) Emissions (With Common Rail Fuel System), Commonly Model Years 2018 And 2019
Mack Chassis - Diagnostic Trouble Code ( DTC ) P02FA Illuminating The Malfunction Indicator Lamp (MIL) - US17+OBD16 And...
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US17+OBD18 (GHG17) Emissions (With Common Rail Fuel System), Commonly Model Years 2018 And 2019
Mack Chassis - Diagnostic Trouble Code ( DTC ) P0420 Illuminating The Malfunction Indicator Lamp (MIL) - US17+OBD16 And...
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US17+OBD18 (GHG17) Emissions (Common Rail Fuel System) - Commonly Model Years 2018 And 2019
Secondary Fuel Filter Damaged Lip Seal; High Pressure Fuel System Learning And Control Limit and System Pressure...
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Diagnostic Trouble Codes (DTC), Possible Uneven Operation - US17+OBD16 And Newer Emissions (Common Rail Fuel System), Commonly Model Year 2018 And Newer
Mack Chassis - Vehicles Equipped With A Vertical Selective Catalytic Reduction (SCR) System - Diagnostic Trouble Codes (...
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DTC ) P1031 With Possible P24DA Lighting The Malfunction Indicator Lamp ( MIL ) - US17+OBD16 (GHG17, Common Rail Fuel System) Emissions, Commonly Model Year 2018
Mack Chassis - Diagnostic Trouble Codes ( DTC ) P208E And P103B Logging With Possible Derate ( SCR Inducement ) -...
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US14+OBD13, US14+OBD15, US14+OBD16 Emissions And Newer
Mack Chassis - Diagnostic Trouble Code ( DTC ) P0420 Illuminating The Malfunction Indicator Lamp (MIL) - US17+OBD16 And...
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US17+OBD18 (GHG17) Emissions (Common Rail Fuel System) - Commonly Model Years 2018 And 2019
Mack Chassis - Diagnostic Trouble Code ( DTC ) P009E-73 - Fuel Pressure Relief Control Performance / Stuck Off -...
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US17+OBD16 And US17+OBD18 ( GHG17 ) Emissions (With Common Rail Fuel System), Commonly Model Years 2018 And 2019
Mack Chassis - Diagnostic Trouble Code ( DTC ) P02FA Illuminating The Malfunction Indicator Lamp (MIL) - US17+OBD16 And...
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US17+OBD18 (GHG17) Emissions (With Common Rail Fuel System), Commonly Model Years 2018 And 2019
Mack Chassis - Diagnostic Trouble Codes ( DTC ) P208E And P103B Logging With Possible Derate ( SCR Inducement ) -...
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US14+OBD13, US14+OBD15, US14+OBD16 Emissions And Newer
Mack Chassis - Diagnostic Trouble Code ( DTC ) P0420 Illuminating The Malfunction Indicator Lamp (MIL) - US17+OBD16 And...
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US17+OBD18 (GHG17) Emissions (Common Rail Fuel System) - Commonly Model Years 2018 And 2019
Mack Chassis - Diagnostic Trouble Code ( DTC ) P009E-73 - Fuel Pressure Relief Control Performance / Stuck Off -...
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US17+OBD16 And US17+OBD18 ( GHG17 ) Emissions (With Common Rail Fuel System), Commonly Model Years 2018 And 2019
Mack Chassis - Diagnostic Trouble Code ( DTC ) P02FA Illuminating The Malfunction Indicator Lamp (MIL) - US17+OBD16 And...
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US17+OBD18 (GHG17) Emissions (With Common Rail Fuel System), Commonly Model Years 2018 And 2019
REQUEST REGEN Button Missing From EATS Status and DPF Status Screens In Instrument Cluster (IC) - Chassis Equipped With...
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New (Updated) Cluster Design - Model Year 2018 And Newer
Diagnostic Trouble Code ( DTC ) P02FA Illuminating The Malfunction Indicator Lamp (MIL) - US17 (GHG17, Common Rail Fuel...
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System) Chassis ONLY
Diagnostic Trouble Code ( DTC ) P0471 Illuminating The Malfunction Indicator Lamp (MIL) - US17 (GHG17, Common Rail Fuel...
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System) Chassis ONLY
Diagnostic Trouble Code ( DTC ) P0420 Illuminating The Malfunction Indicator Lamp (MIL) - US17 (GHG17, Common Rail Fuel...
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System) Chassis ONLY
Diagnostic Trouble Code ( DTC ) P009E - 73 - Fuel Pressure Relief Control Performance / Stuck Off - GHG17 ( US17 )...
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Chassis With Common Rail Fuel System, Updated to reflect GHG17 software release
Diagnostic Trouble Code ( DTC ) P009E - 73 - Fuel Pressure Relief Control Performance / Stuck Off - GHG17 ( US17 )...
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Chassis With Common Rail Fuel System.Changed repair instructions to reflect new procedures
Service Only Regen Requested With No Warning.
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Diagnostic Trouble Codes ( DTC ) P24A4 / P10FE Active Or Inactive With Several Counts - OBD15 And OBD16 Conventional Chassis; Does Not Apply To US17 (Common Rail Fuel System) Chassis.Updated to reflect release of FSB284-064 (Above)
Mack Chassis - Diesel Exhaust Fluid ( DEF ) System Cleaning/Flush After A Pump Failure or System Contamination.Removed...
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Tech Tip, Added correct operation ID
Expired - Refer to K93039325 - Mack Chassis - SNM16-032 DEF (Diesel Exhaust Fluid) Contamination In Diesel Fuel.New...
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solution released with improved information
Engine
58 bulletinsCBR: Turbo Compound (TC) Hot Side Noise, Diagnostic Information.
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.
Service Campaign: Electronic Pressure Relief Valve (EPRV) Delete & Fuel Rail Pressure Sensor Update
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
CBR: Model Year 2017 to Current - Fuel Filter Change ( Primary And Secondary ) For The EM - USA17 Emission Engines
2009 Document reformatted to be published as a TSB in Impact.
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Turbo Actuator Connector Repair.
Mack Chassis - Automated Manual Transmission Model F (AMT-F, mDrive) - Possible Infrequent Hiccup/Stumble During Steady...
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Engine/Vehicle Speed; Diagnostic Trouble Code P1074-92, P1074-94, P1074-96 Logging, Appears As Inactive - Common Model Years 2018
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
Mack Chassis - Technical Service Bulletin M-728-005, Leveling Valve, Leak Test, Air Leaks From The Leveling Valve After...
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The Vehicle Is Parked (Shut Off)
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
Chassis Equipped With An AMT-F (I-Shift, mDrive) - Idle Drive Function Activates When Vehicle Is Reversing/Backing Up At...
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Low Speed; Information And Repair - Build Date Beginning Of Production 2017 To February 2018
Model Year 2017, 2018 - Fuel Filter Change ( Primary And Secondary ) For The EM - USA17 Emission Engines
(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
Engine Control Module (EMS)Software (MSW) Information - November 2019; Improvement List (Change Log) And Explanations...
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For Issues And Diagnostic Trouble Codes (DTC, Fault Codes) US17+OBD2016 And US17+OBD18 Emissions, Model Years 2018 And 2019
Automated Manual Transmission( AMT ) ( I-Shift, mDRIVE ) Equipped Chassis, OBD13 And Newer - Light Turbo Surge ( Chuff )...
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During Skip Shifting
Diagnostic Trouble Codes (DTC) For The Engine Pre-Heat Relay: Supplementary Instructions
Revision: Valve, Common Rail, Removal
Valve, Common Rail, Removal
GR/GU ABS valve bracket installed incorrectly
IGNITION CYLINDER REPLACEMENT-CUMMINS ENGINE
Engine Control Module (EMS) Software (MSW) Information - November 2019; Improvement List (Change Log) And Explanations...
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For Issues And Diagnostic Trouble Codes (DTC, Fault Codes) US17+OBD2016 And US17+OBD18 Emissions, Model Years 2018 And 2019
Assembled Camshaft - Injector Lobe Rotation Inspection For Possible Spun Camshaft Lobe; Diagnostic Trouble Codes (DTC)...
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P0257-00, P2A17-00, Or P2A1F-00, Possible Lack Of Power - US17+OBD16 and Newer Emissions
Engine Brake - Diagnostic Trouble Code (DTC) P1021-11 Volvo Compression Brake (VCB) Control Circuit Short To Ground -...
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US17+OBD16 Through US17+OBD19 Emissions, Model Years 2018 To 2020
Leveling Valve, Leak Test
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 Preheat Icon Does Not Illuminate In The Instrument Cluster (IC) During Engine Pre-heat (Intake Air Heater)...
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Operation - Post-Facelift Vehicles, Model Year 2018 And Newer
Leveling Valve, Leak Test
Mack Chassis - Automated Manual Transmission Model F (AMT-F, mDrive) - Possible Infrequent Hiccup/Stumble During Steady...
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Engine/Vehicle Speed; Diagnostic Trouble Code P1074-92 Logging, Appears As Inactive - Common Model Years 2018 And 2019
Engine Control Module (EMS) Software (MSW) Information; Improvement List (Change Log) And Explanations For Issues And...
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Diagnostic Trouble Codes (DTC, Fault Codes) US17+OBD2016 Emissions, Model Year 2018 (Common Rail Fuel System ONLY)
Common Rail Fuel System - Engine Wiring Harness Will Not Reach / Is Not Long Enough To Connect To Electronic Pressure...
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Relief Valve (EPRV) Connector, Wiring Harness Pulled Tight At EPRV; Correct Clocking, Symptoms, Repair - US17+OBD16 And Newer Emissions, Common Model Years 2018 And Newer
Engine Preheat Icon Does Not Illuminate In The Instrument Cluster (IC) During Engine Pre-heat (Intake Air Heater)...
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Operation - Post-Facelift Vehicles, Model Year 2018 And Newer
Diagnostic Trouble Code (DTC) P0087-00 Illuminating The Malfunction Indicator Lamp (MIL) Or Stop Engine Light; Possible...
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Engine Power/Torque Derate - US17+OBD16 And US17+OBD18 Emissions, Common Model Years 2018 And 2019
Intermittent Occurrences Of Very Brief Loss Of Power, Engine Stumble Or Hiccup Lasting Much Less Than A Second, Most...
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Frequently Between 1500 And 1700 RPM, No Diagnostic Trouble Codes ( DTC ) Generated - All Common Rail Fuel System Chassis - US17+OBD16 And Newer Emissions, Commonly Model Year 2018 And Newer
Engine Speed Does Not Ramp Up From Body Builder Module Request; Requests Sent Via Data Link / Body Link Connector, Not...
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By Switch Or Hardwired Circuit - Generation 2 (INT-GEN2) And Newer (Commonly Model Year 2018)
Oil Contamination Of The Clutch Due To Rear Crankshaft Adaptor O-ring Leakage - Oil Leak At Clutch And Flywheel Housing;...
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Possible Burnt Clutch Smell And/Or Clutch Slipping; Possible Customer/Initial Report Of Crankshaft Rear Main Seal Leak - OBD13 And Newer (16-Pin Diagnostic Connector)
Engine Speed Does Not Ramp Up From Body Builder Module Request; Requests Sent Via Data Link / Body Link Connector, Not...
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By Switch Or Hardwired Circuit - Generation 2 (INT-GEN2) And Newer (Commonly Model Year 2018)
Fuel Injector Offset Learning Diagnostic Trouble Codes ( DTC ) / Fault Codes Logged In Engine Control Module ( EMS );...
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Possible Rough / Uneven Idle - OBD15 Chassis
Engine Diagnostic Trouble Codes ( DTC's ) P24A0 And P249F Lighting The Malfunction Indicator Lamp ( MIL ) - OBD15...
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(Commonly Model Year 2016) And Newer, Changed repair instructions to reflect OBD16 software release
Automated Manual Transmission ( AMT - F ) ( mDRIVE ) Clutch Valve Unit ( CVU ) Makes Intermittent Buzzing Noise With The...
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Key On And Engine Off.Changed repair information to reflect new software available.
Engine Diagnostic Trouble Codes ( DTC's ) P24A0 And P249F Lighting The Malfunction Indicator Lamp ( MIL ) - OBD15...
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(Commonly Model Year 2016) And Newer.Updated to reflect release of FSB284-064 (Above)
On certain Mack models built between August 17, 2015 and August 18, 2017, with a Cummins?1 engine, it may not be...
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possible to request a regen using the cluster stalk switches.
MACK CHU, CXU, GR, GU, and PI trucks built from 2009 to 2017 and equipped with MP7, MP8, and MP10 engines (EM-USA10,...
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EM-USA14, and EM-USA17), will require a new torque specification for the Unit Injector Yoke Hold-Down Bolt. Effective immediately, the torque value in step 4 has changed to 25 +5/-0 Nm (18 +4/-0 ft-lb).
MACK CHU, CXU, GR, GU, and PI trucks built from 2009 to 2017 and equipped with MP7, MP8, and MP10 engines (EM-USA10,...
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EM-USA14, and EM-USA17), will require a new torque specification for the Unit Injector Yoke Hold-Down Bolt.
Lower Valve Cover Crush Sleeve, Installation, During removal and installation of the two-piece valve cover assembly, pay...
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close attention to ensure the all of the crush sleeve are properly installed in the lower valve cover. The crush sleeves can be pulled from the lower valve cover and fall into the gear train causing serious engine damage.
IN SOME INSTANCES THE EXHAUST ROCKER PISTON CAP SCREW MAY BECOME LOOSE AND BACK OUT CAUSING LOSS OF ENGINE COMPRESSION,...
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OR A MECHANICAL INJECTOR DIAGNOSTIC TROUBLE CODE (DTC).
Electrical
35 bulletinsCBR: Model Year 2017, 2018 - US17GHG Common Rail Fuel System Component Electrical Faults
Aftertreatment Diesel Exhaust Fluid (DEF) Tank, Level Sensor, Replacement
2008 Document reformated to be published as a TSB in Impact.
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Revised battery ti battery cable
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
Model Year 2017, 2018 - US17 GHG Common Rail Fuel System Component Electrical Faults
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
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
RD: EPRV Delete & Fuel Rail Pressure Sensor Update
Mack Chassis - Diagnostic Trouble Code (DTC) P009B-13 Fuel Pressure Relief Control Circuit Open; Possible Derate -...
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US17+OBD16 And US17+OBD18 Emissions, Model Years 2018 And 2019
Particulate Matter (PM) Sensor Diagnostic Trouble Codes (DTC) Illuminating The Malfunction Indicator Lamp (MIL) -...
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US14+OBD16, US17+OBD16 And Newer Emissions, Model Year 2017 And Newer - To Be Used For EVERY Visit
EXPIRED - Refer To K47547856 - Debranded Solutions - Mack Chassis - Particulate Matter (PM) Sensor Diagnostic Trouble...
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Codes (DTC) Illuminating The Malfunction Indicator Lamp (MIL); Tech Tip TT-014-2016 - US14+OBD16, US17+OBD16 And Newer Emissions, Common Model Year 2017 And Newer - To Be Used For EVERY Visit
Front Accessory Drive Noise, Alternator Belt Wear, Alternator Belt Tensioner Failure - Model Year 2017 And Newer
Electronic Control Unit (ECU) Replacement (EMS, VECU, TECU, LCM) - Programming (Conversion Kit) Requirements When...
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Installing An ECU With A Newer Part Number - US04 To US10 Chassis (9-Pin Diagnostic Connector)
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 Visit
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 Visit
Diagnostic Trouble Code (DTC) P009B-13 Fuel Pressure Relief Control - Circuit Open; Possible Derate - US17+OBD16 And...
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US17+OBD18 Emissions, Model Years 2018 And 2019
Diagnostic Trouble Codes (DTC) P0194-00 - Fuel Rail Pressure Sensor, Circuit Erratic, Intermittent And/Or P016E-00...
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Closed Loop Fuel Pressure At Control Limit, Pressure Too High - US17+OBD16 (Common Rail Fuel System) Emissions And Newer; Model Year 2017 And Newer
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 Visit
ECM and ACM, Software Updates
ECM and ACM, Reprogramming, OBD2017 and OBD2018
ECM and ACM, Reprogramming, OBD2017 and OBD2018
Particulate Matter ( PM ) Sensor Diagnostic Trouble Codes ( DTC ) Illuminating The Malfunction Indicator Lamp ( MIL );...
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Tech Tip TT-014-2016 - OBD16 And Newer Emissions (Commonly Model Year 2017, Includes Common Rail Fuel System Chassis), Rewritten to split emissions levels, reflect GHG17 software release
ECM and ACM Reprogramming, OBD2015
Mack Chassis - Aftertreatment Control Module ( ACM ) not visible in Premium Tech Tool ( PTT ).Added more checks and...
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procedures
Other
28 bulletinsCBR -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.
Air Restriction Indicator
CBR: Diagnostic Trouble Code (DTC) P215A-64, Fault Code SPN 84 FMI 19
Vibration Diagnostics
2007 document reformatted to be published as a TSB in Impact.
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Lateral cab movement bracket.
2008 Document reformatted to be published as a TSB in Impact.
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Grille bar, replacment.
2008 Document reformatted to be published as a TSB in Impact.
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Loose oil filter spud.
2008 Document reformatted to be published as a TSB in Impact.
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Cooling system connections.
2008 Document reformated to be published as a TSB in Impact.
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Torque rod interference.
2008 Document reformated to be published as a TSB in Impact.
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Field repair for installing the grill.
2009 Document reformatted to be published as a TSB in Impact.
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Axle Carrier Pinion Angles
2008 document reformatted to be published as a TSB in Impact.
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Fan Ring clearance for GU Model Truck.
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)
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)
Mack Chassis - Theft Deterrent System (TDS) Not Working; TDS Does Not Accept Password, Lockout Prevents Vehicle...
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Operation - Model Years 2018 And 2019
EC0020C Conventional, Analysis & SCR Hardware Replacement - 2 Box
EC0022C Analysis & SCR Hardware Replacement, 11L - 1 Box
Plugs, Pressure Protection Manifold
Oil Fill Adapter, Replacement
Unit Injector Yoke Hold-Down Bolt Torque Specification
Transmission
23 bulletinsCBR: 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.
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
2008 Document reformatted to be published as a TSB in Impact.
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Two-Piece clutch brake.
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
Model Year 2018 - Equipped With An Automated Manual Transmission ( AMT-F ) ( I-Shift, mDRIVE ) - Noisy When The Vehicle...
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Is Stationary Shifting From Neutral To Drive Or Reverse
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
Automated Manual Transmission (AMT) Faults - Diagnostic Trouble Codes (DTC) P1052-18 Or MID 130 PID 33 FMI 5...
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Intermittent Fault In Cold Weather - US07 And Newer Emissions, Model Year 2008 And Newer
Expired - Refer To K45673535 - Mack Chassis SNM15-002b mDRIVE Transmission Service Strategy ( Revised failure mode...
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descriptions )
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
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
Mack Chassis - Automated Manual Transmission Model F (AMT-F, mDrive) Power Take-off (PTO) Does Not Engage Or Grinds...
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Intermittently During Engagement Or During Operation; Symptoms Present For PTO That Was Previously Working Properly - US17+OBD16 And Newer Emissions, Common Model Years 2018 And Newer
Mack Chassis - Equipped With An Automated Manual Transmission Model F (AMT-F, mDrive) With Crawler Gears - Setting The...
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Maximum Gear That Can Be (Temporarily) Selected For Starting From Stop In Automatic And Manual Modes; New Parameters For Maximum Adjustable Gear In Automatic And Manual Modes; US17+OBD16 And Newer Emissions, Commonly Model Year 2018 And Newer
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% - US17+OBD16 (GHG17) And Newer Emissions, Common Model Years 2018 And Newer
Some Mack trucks equipped with mDrive transmissions built between September 6, 2010 and August 14, 2017 may have PTO...
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solenoid bracket or transmission harness connector failures due to excessive vibration.
Certain GU trucks equipped with forward steer axles (18,000 lb rated front axles) and built from 2012, may experience...
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issues with static steering while sitting still. There is not enough ability with a single steering gear to overcome certain turning frictions.
Infotainment
7 bulletinsCBR: 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
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.
Mack Chassis - Replacement / Upgrade Of The Programmable Global Audio ( GLAD ) Radio With A Non-programmable Radio
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
Model Year 2017, 2018 - ** Tech Tip ** TT - 000 - 2017 GPS Inoperative Message In DID ( Driver Information Display ) -...
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Telematics Gateway ( TGW )
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
Suspension
5 bulletinsCBR - Driveline Noise, Suspension Ride Height Too High, Suspension Will Not Exhaust - Chassis Built 2016w01 And Newer.
2008 Document reformatted to be published as a TSB in Impact.
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Air suspension ride height.
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
On some MACK CHU, CXU, GU, TD, LEU, LR, and MRU trucks built from 01/14/2013 and 01/20/2017, the V-Stay carrier bolt...
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hole in the mRide suspension may become stripped, causing the V-Stay torque rod bolt to pull free from the carrier housing.
Lighting
5 bulletinsTSB-Charge Air Cooler t-clamp install.
Diagnostic Trouble Code (DTC, Fault Code) MID 140 PSID 210 FMI 12, Faulty Unit or Component Present On DTC Readout;...
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Vehicle Operation Not Affected: No Physical Symptoms Or Warning Lights In Instrument Cluster - Model Year 2018
Mack Chassis - Diagnostic Trouble Code ( DTC ) P226C Intermittently Lighting The Malfunction Indicator Lamp ( MIL ) -...
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OBD15 And OBD16 Conventional Chassis.Updated to reflect release of FSB284-064 (Above)
Diagnostic Trouble Code ( DTC ) P249C Intermittently Lighting The Malfunction Indicator Lamp ( MIL ) - OBD15 And OBD16,...
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Model Year ( MY ) 2016 and 2017 Chassis.Updated to reflect release of FSB284-064 (Above)
Diagnostic Trouble Code ( DTC ) P0422 Lighting The Malfunction Indicator Light ( MIL ) - OBD15 And OBD16 Chassis...
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(Non-Common Rail).Updated to reflect release of FSB284-064 (Above)
Brakes
4 bulletinsCBR - Active "Set Park Brake" Message On Drivers Information Display (DID).
Mack Chassis - Drive Axle Brake Chamber Rubbing Frame Or Brake Drum - Vehicles Built Between 7 July 2014 And 23 August...
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2019
Brake Drum Inspection - Checking Runout, Wear, And Other Characteristics
Mack Chassis - Drive Axle Brake Chamber Rubbing Frame Or Brake Drum - Vehicles Built Between 7 July 2014 And 23 August...
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2019
Body & Paint
4 bulletins2008 Document reformatted to be published as a TSB in Impact.
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Paint protection.
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
Mack Chassis - Differential Carrier Models CRD 125 And CRD 150 - New Differential Axle Seal Installation Tool; New Tool...
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Required For New Input And Output Seal Installation
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
Software & Calibration
4 bulletinsMack Chassis - Bendix Vendor Configuration Program ( VCP ) Software Download Information
On-Highway Vehicles With 2018 Interior Update - Enabling Traffic Sign Recognition (TSR) For Bendix 1.0
Instrument Cluster Reprogramming, GU
Mack Chassis - Diagnostic Trouble Code ( DTC ) P0128, Diagnostic And Repair - US14+OBD13 (Commonly Year Model 2015) And...
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Newer.Updated to reflect release of FSB284-064 (Above)
Pre-Delivery & Maintenance
3 bulletinsService Literature Published and Released in May, 2023
Stock Vehicle Storage and Maintenance
Mack Dealer Support Communication - Selecting The Proper SR Area For Creating An eService
HVAC & Climate
2 bulletins2008 Document reformatted to be published as a TSB in Impact.
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HVAC fine particulate filter.
Mack Chassis - SNM15-027 A/C Compressor Inspection Required For Warranty Repairs
Tires & Wheels
1 bulletinFlywheel Housing Thread Repair