2014 Mack Granite (gu) TSBs
166 Technical Service Bulletins across 14 categories
Categories
Engine
41 bulletinsCBR - Mack Chassis - Engine Brake Only Works With The Brake Pedal, No Function During Cruise.
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US07 And Newer Emissions, Model Year 2008 And Newer.
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: 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
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: 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: Telematics Gateway ( TGW, MID 142 ) Losing Communication With The Instrument Cluster ( IC ) - Counts Of Fault Code...
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(FC) MID 140 PSID 239 FMI 12 Data Link, MID 142 Faulty Device or Component Logging, Possibly Following Engine Start.
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: Mack Chassis - Allison Reduced Engine Load At A Stop (RELS) Diagnostic Trouble Code P071a Or P07ce - GR,TE,LR...
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Models - Non-Split/Drop Box PTO
Barksdale Height Control Valve Troubleshooting Guide
Mack Chassis - Fault Code List / Engine Control Module (ECM), Aftertreatment Control Module (ACM), Electrical System...
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Version 4 Diagnostic Trouble Codes (DTC) Model Year 2013 - 2017
Programming Failure - Chassis With Cummins Engine And An Allison Transmission
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
Volvo Chassis - Crankcase Ventilation ( CCV ) Oil Leaks - Technical Service Bulletin M-257 - 004, Technical Service...
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Bulletin M-257 - 006 - US14 And US15 Emissions
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
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
Diagnostic Trouble Codes (DTC) For The Engine Pre-Heat Relay: Supplementary Instructions - US10+OBD13 And Newer...
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Emissions, Model Year 2014 And Newer
Mack has determined that certain vehicles equipped with a model year (?MY?) 2014 MP8 model engine may be equipped with...
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unit injectors that may not fulfill expected performance criteria pertaining to the life expectancy of a unit injector.
Mack has determined that certain vehicles equipped with a model year (?MY?) 2014 MP7 engine may be equipped with an...
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aftertreatment hydrocarbon injector system (AHI) that may not fulfill expected performance criteria pertaining to the life expectancy of an AHI.
Mack Chassis - Pinnacle (CHU,CXU), Granite (GU) With Mack Engine ONLY - Power Take Off ( PTO ) Engine Speed Control...
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Inoperative; Engine Speed Does Not Ramp When PTO Is Activated - Model Year 2014 And Newer
Mack Chassis - Pinnacle (CHU,CXU,PI), Anthem (AN), Granite (GU,GR) With Mack Engine ONLY - Power Take Off ( PTO ) Engine...
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Speed Control Inoperative; Engine Speed Does Not Ramp When PTO Is Activated - Model Year 2007 And Newer
Variable Geometry Turbo (VGT) Calibration: Premium Tech Tool (PTT) Displays "Motor Disabled" Message, Operation Will...
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Not Run, Will Not Complete When Running Operation; Poor Performance Following Calibration - US10 And Newer Emissions, Common Model Years 2014 And Newer
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
MACK TRUCK: DIAGNOSTIC TROUBLE CODES (DTC) ILLUMINATES INFORMATION DISPLAY WHEN TWO OR MORE ACTIVE DTC ARE SIMULTANEOUS...
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AND ENGINE ECM NEED CALIBRATION TRANSFER FROM ELECTRONIC SYSTEMS DATABASE AND NETWORK (ESDN), USING INSITE, AS REQUIRED, FOR CORRECTION. MODEL 2012-15 GU. *PE
MACK TRUCK: SHOULD REPROGRAMMED ENGINE ECU AND AFTERTREATMENT CONTROL MODULE (ACM) DUE TO PREMIUM TECH TOOL EXPERIENCE...
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AN ERROR CODE 38 FOR SCR OVERTEMP AND ENGINE ECU SOFTWARE NEEDS CHECKING FOR ANY TROUBLESHOOTING IS PERFORMED. MODEL 2013-15 CHU, CXU, GU, LEU, MRU, TD. *PE
MACK TRUCKS 2015 MODEL YEARS: BULLETIN INFORMATION REGARDING NEW ENGINE HARNESS CHANGES MP7, MP8,US2014 CHU, CXU, GU, LEU, MRU.
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THE RETAINING CLAMPS HAVE CHANGED FROM METAL TO PLASTIC WITH METAL INSERTS THAT ARE INTEGRATED INTO THE HARNESS. *LJ
MACK TRUCK: SOME TRUCKS HAVE PREPRODUCTION ENGINE EMISSION CERTIFICATION LABEL THAT NEEDS TO BE REMOVED AND REPLACED...
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WITH UPDATED OR CORRECTED ENGINE EMISSION CERTIFICATION LABEL. MODEL 2014 CHU, CXU. *PE
MACK: THERE IS AN AUTOMATIC ELECTRIC OVER SPEED PROTECTION SHUTDOWN THAT MONITORS DIESEL ENGINE RPM AND ENGINE SHUTDOWN...
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IN EVENT OF AN OVER SPEED CONDITION, WHICH MAY BE CAUSED BY GASES, IN TRUCKS, IN OFF ROAD AREAS AND PULLED THROUGH AIR INTAKE. MODEL 2014 CHU, CXU, GU. *PE
MACK TRUCKS:DUE TO EXCESSIVE MOISTURE IN THE CLIMATE UNIT, SOME VEHICLES MAY DEVELOP A BLOWER MOTOR FAILURE.
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*JS
MACK TRUCK: REGARDING THE BREAKING OR CRACKING, AT STARTER SOLENOID STUD, OF 90 DEGREE POSITIVE BATTERY CABLE LUG; THE...
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LUG WAS BENT AT TIME OF ASSEMBLY, AND ENGINE VIBRATES, CAUSING TERMINATION OF TERMINAL TO WEAKEN. MODELS CXU, GU. MODEL YEARS NOT LISTED. *PE UPDATED 1/24/2014 *JS
Other
31 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 -Telematics Gateway (TGW) Connect Ability Issues
CBR: TGW Will Not Connect After SIM Card Replacement
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
Frame Flange Relief Cut-out Templates with 105 millimeter Frame Flanges
New Vehicle Safety Certification Requirements for Vehicles, U.S.
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and Canada
CBR: Mack Granite - Diagnostic Trouble Code (DTC) P208464
2007 document reformatted to be published as a TSB in Impact.
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Lateral cab movement bracket.
2009 Document reformatted to be published as a TSB in Impact.
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Axle Carrier Pinion Angles
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 SNM14-015 " Revised " Alternative Towing Procedures For m-DRIVE Equipped Chassis
Volvo Chassis - FSB 237 - 020, Unit Injector Yoke Hold - Down Bolt Torque Specification
Mack Chassis - FSB 563-008 Plugs, Pressure Protection Manifold - New Brass Plugs For Noregon Pressure Protection...
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Manifold (PPM)
Mack Chassis - FSB 237 - 020, Unit Injector Yoke Hold - Down Bolt Torque Specification
Diagnostic Trouble Codes (DTC) P20EE And P103C, Diagnostic Procedure; REPLACES GUIDED DIAGNOSTICS IN PREMIUM TECH TOOL (...
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PTT ) - US17+OBD16 And Newer Chassis ONLY
Mack Chassis - Fault Code SID 158 FMI 0 Logging In Instrument Cluster ( MID 140, IC ), No Code Description Or Diagnostic...
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Information
SUMMARY TO BE PROVIDED ON A FUTURE DATE.
SUMMARY TO BE PROVIDED ON A FUTURE DATE.
MACK TRUCKS: GRAD GRIPPER NEEDS REPLACEMENT ON SOME TRUCK MODELS: MACK,CHU, CXU,GU AND TD BUILT BETWEEN 2008-2014.
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*LJ
MACK TRUCKS: LOW OIL PRESSURE.
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STORED DTC SPN 100 FMI 1, DURING LONG HARD PULL CONDITIONS. *JS
Fuel System
29 bulletinsIf 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
Emissions 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.
Mack DEF Pump Troubleshooting Guide - US10+OBD13 And Newer Emissions
Mack DEF Pump 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
USE FOR NEW VEHICLES (US21+OBD22 Emissions) - Intermittent Diagnostic Trouble Codes U02A3, U029D, U029E
Mack Chassis - Diesel Exhaust Fluid ( DEF ) System Cleaning/Flush After DEF Pump Failure Or System Contamination
Diagnostic Trouble Code (DTC) P04DB - Crankcase Ventilation Disconnected; US10+OBD13 To US14+OBD16 Emissions
Aftertreatment Hydrocarbon Injector (AHI) Troubleshooting Guide - US10+OBD13 And Newer Emissions
Diagnostic Trouble Codes ( DTC ) P20EE, P207F And P103C, Diagnostic Procedure - REPLACES GUIDED DIAGNOSTICS IN PREMIUM...
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TECH TOOL ( PTT ) - US10+OBD2013 to US14+OBD2016 (Non-Common Rail) Emissions, Commonly Model Years 2014 To 2017
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
Volvo Chassis - Diesel Exhaust Fluid ( DEF ) Contamination In Fuel System, Inspection And Repair - US10 to US14 (...
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Non-Common Rail Fuel System )
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
Mack Chassis - Disabling The Driver ID; Removing the Driver ID Prompt - US07 To US14+OBD16 Emissions, Model Years 2008...
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To 2017
Mack Chassis - Diagnsotic Trouble Code P026D-00, Fuel Injection Quantity Higher Than Expected; Diagnosis And Information...
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- US14+OBD15 Emissions, Model Year 2016
Fuel Tank Strap Insulator Design Update; Fuel Tank Strap Appearance Changed
Aftertreatment Hydrocarbon Injector (AHI, 7th Injector) Changes Between US10 And US17 (GHG17, Common Rail Fuel System) -...
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Chassis Experiencing High soot Accumulation, Abnormal ( Too High, Overtemp, Too Low ) Regeneration Temperatures Following An Aftertreatment Hydrocarbon Injector Nozzle Replacement Procedure
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
MACK TRUCK: TO INCREASED PROTECTION AGAINST FUEL INJECTOR TIP EROSION, A NEW FUEL TANK VENTILATION FILTER WAS...
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IMPLEMENTED, AND MOUNTS ON OUTSIDE OF FRAME RAIL, USING FUEL TANK J BRACKET HUCK FASTENERS. MODEL CHU, CXU, GU, TD. *PE
MACK TRUCK: MOUNTED OUTSIDE OF FRAME RAIL, IS NEW FUEL TANK VENTILATION FILTER MOUNTING SLEEVE, USING FUEL TANK J...
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BRACKET HUCK FASTENERS AND TO INCREASE PROTECTION AGAINST FUEL INJECTOR TIP EROSION. MODEL CHU, CXU, GU, TD. *PE
Electrical
17 bulletinsCBR - Mack Temperature Sensor Troubleshooting Guide
Aftertreatment Diesel Exhaust Fluid (DEF) Tank, Level Sensor, Replacement
Mack MMD Alternator Pulley
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
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
Intake Pre-heater Electrical Schematics (Diagrams) - US10+OBD13, US14+OBD13 To US14+OBD16 Emissions
Exhaust Gas Temperature Sensor Circuit Range/Performance
Lighting Control Module ( LCM ) Replacement - Refer To Technical Parts Information ( TPI ) 364 - 034 Control Unit
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
Exhaust Gas Recirculation (EGR) System - Fault Codes SPN 412 FMI 0,2,5; Diagnostic Trouble Codes (DTC) P040A, P040B,...
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P1121 - Temperature Sensor Inspection
ECM and ACM Reprogramming, OBD2015
MACK: WHEN THE OUTPUT FROM THE VECU GETS SHORTED OUT TO GND, THERE IS NO WARNING AND CAUSES 5TH WHEEL TO SLIDE WITHOUT...
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ACTIVATING 5TH WHEEL SLIDE SWITCH AND NEEDS TO BE REPROGRAM. MODEL 2010-2014 CHU, CXU, GU, TD. *PE
Transmission
17 bulletinsCBR: 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: 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
2009 Document reformatted to be published as a TSB in Impact.
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Air-Operated Clutch Assist Adjustment and Troubleshooting
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
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
Mack Chassis - Equipped With An Allison Transmission: Enable 6th Speed - All Emissions, All Model Years
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: ON SOME TRUCKS, MORE LEG AND KNEE ROOM WAS PROVIDED FOR OPERATOR COMFORT DUE TO AIR OPERATED CLUTCH ASSIST SYSTEM...
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DESIGNED TO REDUCE CLUTCH PEDAL EFFORT BY 20% AND CLUTCH PEDAL TRAVEL BY 2' (50.8MM). MODEL CHU, CTP, CXP, CXU, GU. NO YEARS LISTED. *PE
MACK TRUCKS: THE AIR ASSISTED CLUTCH CABLE ON SOME VEHICLES MAY FRAY AT THE CLEVIS.
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*JS
Body & Paint
7 bulletinsMack Chassis - Granite 7 Series (GU, GU7, M058, M746, M748) - Cracks, Breakage Or Fatigue Found Around The Hood Guide -...
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Vehicles Built From Feb 2010 Through 20 Nov 2017
Mack Chassis - Model GR/GU - Hood Warpage
Mack Chassis - Model GR/GU - Hood Warpage
Mack Chassis - Model GR/GU - Hood Warpage
Mack Chassis - SNM16 - 015 Updated Wiper Mechanism for One Piece Windshield; Windshield Wipers Leaving Streaks Or Not...
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Clearing Center Of Windshield
Hood Insulation Separating From Hood, Insulation Installation Instructions
MACK: THE DOOR STOP BRACKET WILL FAIL, ON SOME TRUCKS, DUE TO AN OVER EXTENSION OF DOOR, BUT A NEW DOOR DESIGN ASSEMBLY IS AVAILABLE.
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MODEL CHU, CXU, GU, TD. NO YEARS LISTED. *PE
Lighting
5 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.
Mack Chassis - No Gauge Cluster Backlight
TSB-Charge Air Cooler t-clamp install.
Mack Chassis - Adding Snow Plow Lights - Parameter And Variant Changes
MACK TRUCKS: NEW SWITCH MOUNTING BRACKET WAS DEVELOPED TO REPLACE EXISTING TURN SIGNAL SWITCH MOUNTING BRACKET, DUE TO...
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CONTACT BETWEEN SWITCH FINGERS AND SLEEPING SHAFT, THAT CAUSED SWITCH OPERATION TO IMPROPERLY CANCELS ITSELF. MODEL CHU, CXU, GU, TD. *PE
Brakes
5 bulletinsCBR - Active "Set Park Brake" Message On Drivers Information Display (DID).
(Back Office) Mack Chassis - Grade Gripper Reactivates After Timeout With Brake Pedal Released - Vehicles Manufactured...
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Prior To 2018
MACK: THE PROTRUSION OF BRAKE SHOES BEYOND BRAKE DRUM IS BEING REPLACED WITH NEW 152MM (6.0 IN) BRAKES SHOES, 178 MM...
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(7.,0 IN) WIDE BRAKE DRUMS ON SOME TRUCKS. MODEL 2011-2014 CHU, CXU, GU, TD. *PE
MACK: BRAKE SHOES PROTRUDES BEYOND BRAKE DRUM AND CAN BE RESOLVED BY INSTALLING BRAKE SHOES 152MM (6.0 IN) AND WIDE BRAKE DRUMS 18MM (7.0 IN).
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MODEL 2011-2014 CHU, CXU, GU, TD. *PE
MACK: AIR DISC BRAKE EXPERIENCING THERMAL OVERLOAD CONDITION THAT OVER ADJUSTMENT OF NORMAL PAD WEAR COMPENSATION THAT...
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MAINTAINS RUNNING CLEARANCE BETWEEN BRAKE PAD AND ROTOR AND REDUCES RUNNING CLEARANCE BELOW DESIRED LEVEL. MODEL CHU, CXU, GU, LEU, MRU, TD. NO YEARS LISTED. *PE
Pre-Delivery & Maintenance
4 bulletinsCBR - Accelerator Pedal: Inspection Instructions
Service Literature Published and Released in May, 2023
Stock Vehicle Storage and Maintenance
Mack SNM14-038 When And How To Contact Tech Support ( eService & Phone )
Suspension
3 bulletinsCBR - Driveline Noise, Suspension Ride Height Too High, Suspension Will Not Exhaust - Chassis Built 2016w01 And Newer.
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
Tires & Wheels
2 bulletins2009 Document reformatted to be published as a TSB in Impact.
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Axle Alignment Specifications
MACK TRUCK: THE GRADE GRIPPER FEATURE, ON SOME TRUCKS, ARE PRONE TO HARSH ENVIRONMENTS WITH INTERNAL CONTAMINATION,...
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CAUSED BY BUILD UP OF GRIME, SALT, ROAD DEBRIS AND OTHER CONTAMINANTS. MODEL CHU, CXU, GU, TD. *PE
Software & Calibration
2 bulletinsMack Chassis - Bendix Vendor Configuration Program ( VCP ) Software Download Information
MACK TRUCK: FLASHERS ARE TO BE REMOVED DUE TO DURABILITY ISSUES.
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*JS
Steering
2 bulletinsMack Chassis - Models GU / CHU Steering Wander
MACK: SAFETY RECALL, ON CERTAIN TRUCKS, ON LOWER AND UPPER STEERING SHAFT PINCH BOLT THAT WAS NOT TORQUED TO...
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SPECIFICATION AND STEERING SHAFT BECOMES LOOSE AND HAVE NO STEERING CONTROL. MODEL 2014 CXU, GU. *PE
Infotainment
1 bulletinMack Delphi Radio Theftlock Code Generator