2014 Mack Mru TSBs
211 Technical Service Bulletins across 15 categories
Categories
Engine
66 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.
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, 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: 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
2008 Document reformatted to be published as a TSB in Impact.
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Crack in cab at engine tunnel.
2008 Document reformated to be published as a TSB in Impact.
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Field repair for the treadle valve.
2009 Document reformatted to be published as a TSB in Impact.
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Turbo Actuator Connector Repair.
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
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 Chassis - Emcon (Spark Assist) Engine Aftertreatment System Troubleshooting Check Sheet - US07 Emissions
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
Mack Chassis - Discharge Recirculation Valve (DRV) - FSB 258-029 , Engine Turbocharger Compressor Bypass Valve Deletion...
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Kit, Installation
US07 / US10 D13 Turbocharger Gasket - Low Power, Poor Regen Performance
Mack Chassis - SNM16-006 Telematics Gateway ( TGW ) Goes Offline Due To Vin Mismatch When Test Engine ECU Is Installed
Mack Chassis - Equipped With A Cummins 9 Liter Engine - Serpentine Belt Excessively Worn Or Damaged; Fan Belt Shredding...
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Or Fraying Repeatedly
Diagnostic / Troubleshooting Procedures For EGR System Components; Diagnostic Trouble Codes (DTC) P0401-00, P0402-00,...
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P04DD-00, P1121-00, P1121-98 Or SPN 2659 FMI 16, SPN 2659 FMI 18, SPN 412 FMI 0, SPN 412 FMI 15 - US10, US10+OBD13, US14+OBD*, US17+OBD* With A Variable Geometry Turbocharger (VGT)
Mack Chassis - Crankcase Ventilation ( CCV ) Oil Leaks - FSB 257 - 004, FSB 257 - 006 - US14 And US15 Emissions
Mack Chassis - Telematics Gateway ( TGW, MID 142 ) Losing Communication With The Instrument Cluster ( IC ) - Counts Of...
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Fault Code (FC) MID 140 PSID 239 FMI 12 Data Link, MID 142 Faulty Device or Component Logging, Possibly Following Engine Start; TGW Possibly Missing From Product Information In Premium Tech Tool ( PTT ) - OBD13 Through OBD16 Emissions With TGW1 Or TGW2
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
During extended periods of idling, engine speed may increase for a short time without any external command to do so.
MACK Trucks has determined that certain 2013 through 2015 year model CHU, CXU, GU and MRU trucks equipped with a MP8...
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model engine may be equipped with an improperly functioning on-board emission-related diagnostic system.
SOME MACK VEHICLES BUILT BETWEEN 2004 AND OCTOBER 2013 EXPERIENCE AN OIL LEVEL SENSOR FAILURE THAT LEADS TO OIL...
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CONTAMINATION INTO THE ENGINE WIRE HARNESS.
DURING LONG HARD PULL CONDITIONS, DIAGNOSTIC TROUBLE CODES (DTC) SPN 100 FMI 1 OR P052400 CAN LOG ON CERTAIN MACK CXU,...
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GU, LEU AND MRU VEHICLES BUILT BETWEEN JANUARY 1, 2010 AND CURRENT PRODUCTION WITH MP7 EPA2010 AND OBD2013 ENGINES.
ON SOME MACK ISL-G MODELS BUILT, BETWEEN JANUARY 1, 2009 AND JANUARY 21, 2013, MAY EXPERIENCE A FAULT CODE, MID140 PSID...
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200 FMI 9, WHEN THE ENGINE SOFTWARE IS UPDATED.
SOME MACK VEHICLES BUILT BETWEEN 2004 AND OCTOBER 2013 EXPERIENCE AN OIL LEVEL SENSOR FAILURE THAT LEADS TO OIL...
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CONTAMINATION INTO THE ENGINE WIRE HARNESS.
SOFTWARE UPDATES WITH ENHANCEMENTS ARE AVAILABLE FOR THE ENGINE CONTROL MODULE (ECM) AND AFTERTREATMENT CONTROL MODULE...
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(ACM) FOR VEHICLES BUILT FROM THE START OF OBD2013 PRODUCTION TO MAY 29, 2013.
SOFTWARE UPDATES WITH ENHANCEMENTS ARE AVAILABLE FOR THE ENGINE CONTROL MODULE (ECM) AND AFTERTREATMENT CONTROL MODULE...
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(ACM) FOR VEHICLES BUILT FROM MAY 30, 2013 TO OCTOBER 4, 2013.
CERTAIN MACK MRU MODELS, BUILT BETWEEN 10/12/12 AND 4/19/13, MAY HAVE AN UNSEALED SPLICE EXPOSED TO THE OUTSIDE ENVIRONMENT.
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THIS MAY ALLOW CORROSION TO OCCUR TO THE ENGINE CONTROL EMS SUPPLY, CIRCUITS F38A, F38A1, F38A2 AND F38A3.
DUE TO A DURABILITY ISSUE WITH THE TURBOCHARGER OUTLET FLEX PIPE, IT HAS BEEN DECIDED TO REPLACE THE FLEX PIPE ON ALL...
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MACK LEU AND MRU VEHICLES WITH A MP7 OR MP8 ENGINE BUILT BETWEEN APRIL 1, 2013 AND OCTOBER 13, 2013.
SOME MACK VEHICLES WITH MP ENGINES BUILT BETWEEN JANUARY 2004 AND JANUARY 2013 MAY EXPERIENCE A MAIN OIL GALLERY...
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PRESSURE SENSOR OR PISTON COOLING JET PRESSURE SENSOR FAILURE THAT LEADS TO OIL CONTAMINATION INTO THE ENGINE WIRE HARNESS.
ON CERTAIN MACK CNG (COMPRESSED NATURAL GAS) MRU/LEU MODELS, BUILT BETWEEN 11/10/13 AND 2/14/14, MAY HAVE AN ACTIVE...
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FAULT CODE MID 140 PID 247 FMI 9 AND THE ENGINE HOURS IN THE INSTRUMENT CLUSTER (MID140) MAY NOT MATCH WHAT IS IN THE ENGINE. THIS IS DUE TO A MESSAGING ISSUE BETWEEN THE ENGINE AND INSTRUMENT CLUSTER (MID140).
CRD 150/151 CARRIER INSPECTION COVER, REPLACEMENT, A MANUFACTURING DEFECT HAS BEEN IDENTIFIED AFFECTING CARRIERS BUILT...
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FROM DECEMBER 2012 THROUGH JANUARY 2013. THE ISSUE IS MOLDING FLASH THAT MAY BE EXTENDING INTO THE O-RING GROOVE AT THE 12 AND 6 O'CLOCK POSITIONS OF THE COMPOSITE SIDE COVER. THIS FLASH MAY CUT INTO THE O-RING AND CAUSE IT TO DISTORT AND RESULTING IN OIL LEAKAGE. IT IS RECOMMENDED THAT THE COVER BE REPLACED TO CORRECT THIS CONDITION.
ECM AND ACM SOFTWARE UPDATES, SOFTWARE UPDATES WITH ENHANCEMENTS ARE AVAILABLE FOR THE ENGINE CONTROL MODULE (ECM) AND...
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AFTERTREATMENT CONTROL MODULE (ACM) FOR VEHICLES BUILT FROM MAY 30, 2013 TO OCTOBER 4, 2013.
ECM AND ACM SOFTWARE UPDATES, SOFTWARE UPDATES WITH ENHANCEMENTS ARE AVAILABLE FOR THE ENGINE CONTROL MODULE (ECM) AND...
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AFTERTREATMENT CONTROL MODULE (ACM) FOR VEHICLES BUILT FROM THE START OF OBD2013 PRODUCTION TO MAY 29, 2013.
OBD2013 SOFTWARE UPDATES.
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SOFTWARE UPDATES WITH ENHANCEMENTS ARE AVAILABLE FOR THE ENGINE CONTROL MODULE (ECM) AND AFTERTREATMENT CONTROL MODULE (ACM) FOR MACK MP7, MP8 AND MP10 ENGINES ON OBD2013 VEHICLES BUILT FROM FEBRUARY 1, 2013 TO FEBRUARY 6, 2014.
COOLANT LEVEL SENSOR, REPLACEMENT.
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THE COOLANT LEVEL SENSOR (PART NUMBER 21257608) ON SOME MACK CABOVER TRUCKS BUILT BETWEEN 10/04/2008 AND 02/20/2015 MAY FAIL INTERNALLY. FAILURE OF THE SENSOR CAN CAUSE THE MALFUNCTION INDICATOR LIGHT (MIL) TO ILLUMINATE AND CAN CAUSE AN UNPLANNED STOP IN CASES WHERE THE ENGINE PARAMETER "ENGINE SHUTDOWN WITH LOW COOLANT" IS ENABLED.
ON SOME MACK MODELS BUILT BETWEEN JANUARY 1, 2013 AND SEPTEMBER 13, 2013, MAY EXPERIENCE MULTIPLE COUNTS OF INACTIVE...
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FAULTS: P113F-12, BUFFERED IDLE VALIDATION SWITCH WIRE VECU SIDE, CIRCUIT SHORT TO BATTERY. P113F-11, BUFFERED IDLE VALIDATION SWITCH WIRE VECU SIDE, CIRCUIT SHORT TO GROUND. THIS IS DUE TO A BUG IN THE SOFTWARE.
ANTI-LOCK BRAKE SYSTEM (ABS) SENSOR CONNECTOR, REPLACEMENT.
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THE ANTI-LOCK BRAKE SYSTEM (ABS) SENSOR CONNECTOR ON SOME MACK TRUCKS BUILT BETWEEN 01/01/2013 AND 11/07/2014 MAY SHOW SIGNS OF CORROSION. CORROSION OF THE ABS SENSOR CONNECTOR CAN CAUSE ABS SENSOR FAULT CODES AND CAUSE THE ENGINE TO DE-RATE ON TRUCKS EQUIPPED WITH MDRIVE TRANSMISSIONS ONLY.
DIAGNOSTIC TROUBLE CODES (DTCS), LOW OIL PRESSURE.
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DURING LONG HARD PULL CONDITIONS, DIAGNOSTIC TROUBLE CODES (DTC) SPN 100 FMI 1 OR P052400 CAN LOG, OR ENGINE SHUT DOWN MAY OCCUR ON CERTAIN HIGH MILEAGE MACK CXU, GU, LEU AND MRU VEHICLES BUILT BETWEEN JANUARY 1, 2010 AND APRIL 2, 2015 WITH MP7 ENGINES. THESE DTC MAY OCCUR DURING THE CONDITIONS DESCRIBED IN THIS BULLETIN, WITH OR WITHOUT AN ENGINE SHUT DOWN LAMP.
SOME MRU AND LEU TRUCKS BUILT BETWEEN 06/28/2010 AND 02/11/2013 WITH THE CUMMINS ISLG ENGINE MAY EXPERIENCE A FAILURE OF...
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THE BRAKE COMPRESSOR AIR INLET HOSE WHERE IT ATTACHES TO THE COMPRESSOR.
OIL PAN SEALING RING, REPLACEMENT.
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SOME MACK VEHICLES EQUIPPED WITH MP8 ENGINES BUILT SINCE JANUARY 2010 REPORT OIL LEAKING AT THE DRAIN PLUG INSERT IN THE 13L PLASTIC OIL PAN (PART NUMBER 21368390) DUE TO O-RING MATERIAL DEGRADATION. IF OIL PAN IS SHOWING EVIDENCE OF LEAKAGE, REPLACE ALL O-RINGS AND SEALING RINGS.
REGENERATION TEMPERATURES.
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CERTAIN MACK VEHICLES BUILT BETWEEN JANUARY 1, 2013 AND AUGUST 17, 2015 MAY EXPERIENCE A PREMIUM TECH TOOL (PTT) ERROR CODE 38 FOR SCR OVERTEMP WHEN PERFORMING A PTT REGENERATION. IF ERROR CODE 38 OCCURS, CHECK THE ENGINE ECU MAIN SOFTWARE BEFORE PERFORMING ANY TROUBLESHOOTING.
OBD2013 SOFTWARE UPDATES.
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SOFTWARE UPDATES WITH ENHANCEMENTS ARE AVAILABLE FOR THE ENGINE CONTROL MODULE (ECM) AND AFTERTREATMENT CONTROL MODULE ACM) FOR MACK MP7, MP8 AND MP10 ENGINES ON OBD2013 VEHICLES BUILT FROM FEBRUARY 1, 2013 TO FEBRUARY 6, 2014.
ON SOME MACK ISL-G MODELS BUILT, BETWEEN JANUARY 1, 2009 AND JANUARY 21, 2013, MAY EXPERIENCE A FAULT CODE, MID140 PSID...
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200 FMI 9, WHEN THE ENGINE SOFTWARE IS UPDATED.
MACK TRUCK: DURING EXTREMELY COLD AMBIENT TEMPERATURES, AT START UP, SOME TRUCKS MAY EXPERIENCE THROTTLE DELAYS, UNTIL...
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ENGINE TEMPERATURES ARE OPERATIONAL ACHIEVED. MODEL 2014-15 LEU, MRU. *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 TRUCK: DUE TO MESSAGING SITUATION REGARDING INSTRUMENT CLUSTER AND ENGINE, THERE IS AN ACTIVE FAULT CODE, AND THE...
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ENGINE HOURS IN THE INSTRUMENT CLUSTER IS NOT MATCHING THE ENGINE. MODEL 2013-2014 LEU, MRU. *PE
MACK: ON CERTAIN TRUCKS, THERE IS A SOFTWARE UPDATE FOR THE ENGINE CONTROL MODULE (ECM).
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MODEL LEU, MRU. NO YEARS LISTED. *PE
MACK TRUCKS: INFORMATION PROVIDED REGARDING THE REPROGRAMMING OF THE INSTRUMENT CLUSTER DUE TO MESSAGE BEING TURNED OFF IN NEW ENGINE SOFTWARE.
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MODELS LEU, MRU. NO MODEL YEARS LISTED. *PE
Fuel System
37 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
2008 Document reformatted to be published as a TSB in Impact.
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Water entering the DPF.
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
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
Mack Chassis - TerraPro (MRU) And Low Entry (LEU) Models - Field Service Bulletin FSB 381-042, Warning Light Bar...
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Replacement and Software Conversion Kit - US07, US10, US14+OBD13 To US14+OBD16 Emissions, Model Years 2008 To 2017
Diagnostic Trouble Code (DTC) P04DB - Crankcase Ventilation Disconnected; US10+OBD13 To US14+OBD16 Emissions (Non-Common...
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Rail Fuel System), Common Model Years 2014 To 2017
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)
Mack Chassis - Diagnostic Trouble Code ( DTC ) P0471 Illuminating The Malfunction Indicator Lamp (MIL) - US17+OBD16...
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(GHG17, Common Rail Fuel System) Chassis ONLY
Diagnostic Trouble Code ( DTC ) P0422 Lighting The Malfunction Indicator Light (MIL ) - OBD15 And US14+OBD16 (Non-Common...
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Rail Fuel System) Chassis
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 Codes ( DTC ) P208E And P103B Logging With Possible Derate ( SCR Inducement ) - OBD15, US14+OBD16...
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Emissions And Newer Rewrote test procedure for better clarity.
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
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
Diagnostic Trouble Codes ( DTC ) P208E And P103B Logging With Possible Derate (SCR Inducement ) - US13 Emissions And...
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Newer
EGR MASS FLOW RATE LOW.
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THIS BULLETIN IS RELEASED TO ADDRESS HIGH COUNTS OF DIAGNOSTIC TROUBLE CODE (DTC) SPN 2659 FMI 18 OR P0401 ONLY DURING NORMAL TO HIGH LOAD DRIVING CONDITIONS ON VEHICLES ASSEMBLED BETWEEN JANUARY 2010 AND DECEMBER 2013. IT HAS BEEN DETERMINED THAT DEPOSITS IN THE EGR COOLER CAN BUILD UP AND CAUSE HIGH RESTRICTION OVER TIME. THIS HIGH RESTRICTION PREVENTS THE REQUIRED AMOUNT OF EGR GAS FROM FLOWING THROUGH THE EGR COOLER CREATING DTC SPN 2659 FMI 18 OR P0401 EGR MASS FLOW RATE LOW TO BE LOGGED INTERMITTENTLY. NORMALLY, THIS IS ONLY REPORTED ON HIGHER MILEAGE VEHICLES.
Other
36 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.
CBR: Diagnostic Trouble Code (DTC) P215A-64, Fault Code SPN 84 FMI 19
Vibration Diagnostics
New Vehicle Safety Certification Requirements for Vehicles, U.S.
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and Canada
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 reformatted to be published as a TSB in Impact.
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Chassis lean.
2009 Document reformatted to be published as a TSB in Impact.
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Axle Carrier Pinion Angles
2009 Document reformated to be published as a TSB in Impact.
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Air Piping Diagrams.
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
Mack Chassis - Air System Schematics For Models - MRU, LEU And ( LR ) Using The Same Schematic As the LEU
Mack Chassis - FSB 563-008 Plugs, Pressure Protection Manifold - New Brass Plugs For Noregon Pressure Protection...
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Manifold (PPM)
Air Pressure Switch, Replacement
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 - Vibration Questionnaire, Driveline Angle Worksheet And Rough Ride Check Sheet
Plugs, Pressure Protection Manifold
** Tech Tip ** TT - 001 - 2015 - How And When To Diagnose A P0402 Code
Issues with the Charge Air System may result in the presence of oil in the Charge Air Cooler ( CAC ) or intake piping.
Diagnostic Trouble Codes (DTCs), Low Oil Pressure, CXU, GU, LEU, MRU
MACK TRUCKS INC. HAS DETERMINED THE CAP NUT THAT RETAINS THE INTERAXLE DRIVESHAFT YOKE TO THE REAR AXLE INPUT SHAFT MAY...
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BE SUBJECT TO PREMATURE LOOSENING ON CERTAIN CHU, CMH, CMM, CXU, GU, LEU, LR, MRU AND TD MODEL VEHICLES. THE POTENTIAL RISK IS THAT IF THE NUT COMES OFF, THE YOKE CAN SEPARATE FROM THE AXLE INPUT SHAFT AND CAUSE THE DRIVESHAFT TO DISCONNECT. IF THIS OCCURS, A DISCONNECTED DRIVESHAFT CAN DISABLE THE VEHICLE AND RESULT IN DEBRIS IN THE ROADWAY, WHICH INCREASES THE RISK OF A VEHICLE CRASH.
DIAGNOSTIC TROUBLE CODES (DTCS), LOW OIL PRESSURE, CXU, GU, LEU, MRU.
SUMMARY TO BE PROVIDED ON A FUTURE DATE.
MACK TRUCKS: LOW OIL PRESSURE.
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STORED DTC SPN 100 FMI 1, DURING LONG HARD PULL CONDITIONS. *JS
Electrical
27 bulletinsAftertreatment Diesel Exhaust Fluid (DEF) Tank, Level Sensor, Replacement
Mack MMD Alternator Pulley
2008 Document reformatted to be published as a TSB in Impact.
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Electrical equipment panel label.
2008 Document reformatted to be published as a TSB in Impact.
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Differential pressure sensor hose.
2008 Document reformated to be published as a TSB in Impact.
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Revised battery ti battery cable
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
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)
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
** Tech Tip ** TT - 007 - 2015 - Diagnosing The Aftertreatment Control Module DTCs P202D, P208E, P20E8 - OBD13 (Commonly...
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Model Year 2014); Newer Chassis AFTER Reviewing Other Solutions
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 - Diagnostic Trouble Codes (DTC) P2604 , P2606 - Intake Heater / Preheater / Preheat "A" Circuit Range /...
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Performance - US10+OBD13, US14+OBD13 To US14+OBD16, Model Years 2014 To 2017
** Tech Tip ** TT - 007 - 2015 - Diagnosing The Aftertreatment Control Module DTCs P202D, P208E, P20E8 - OBD13 (Commonly...
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Model Year 2014); Newer Chassis AFTER Reviewing Other Solutions
Mack Chassis - Aftertreatment Control Module ( ACM ) Offline / Not Visible / Missing From Control Unit Information in...
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Premium Tech Tool ( PTT )
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
V-STAY ROD COVER, REPLACEMENT.
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SOME MACK CHU, CXU, GU, TD, LEU, MRU, AND LR TRUCKS BUILT FROM 03/19/2012 TO 08/30/2015 AND EQUIPPED WITH MRIDE SUSPENSIONS MAY INADVERTENTLY LOSE THE V-STAY ROD COVER (PART NUMBER 21896762) FROM THE V-STAY ROD. THE REPLACEMENT V-STAY ROD COVER WILL BE INSTALLED AND SECURED WITH A TACK WELD IN TWO PLACES (180 DEGREES APART).
Transmission
14 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
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
Effective September 2016, a revised composite bevel gear compartment cover with steel threaded fill plug and...
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face-mounted o-ring was implemented into production for MACK CRD202/203, CRD150/151 and CRD 125/126 carriers. The revised composite cover replaces the previous composite cover with the rubber fill plug.
ON SOME MACK MODELS BUILT WITH AN ALLISON TRANSMISSION, BETWEEN MAY 16, 2011 AND AUGUST 9, 2013, MAY EXPERIENCE MULTIPLE...
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OPEN CIRCUITS IN THE 31 WAY TRANSMISSION CONNECTOR. THIS IS DUE TO A SUPPLIER MANUFACTURING ISSUE WITH THE CONNECTOR.
Suspension
9 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
V-Stay Rod Cover, Replacement.
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Some MACK GU, MRU, LEU trucks built from 03/19/2012 to 08/30/2015 and equipped with mRide suspensions may Inadvertently lose the v-stay rod cover (part number 21896762) from the v-stay rod.
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.
V-STAY ROD COVER, REPLACEMENT.
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SOME MACK GU, MRU, LEU TRUCKS BUILT FROM 03/19/2012 TO 08/30/2015 AND EQUIPPED WITH MRIDE SUSPENSIONS MAY INADVERTENTLY LOSE THE V-STAY ROD COVER (PART NUMBER 21896762) FROM THE V-STAY ROD.
V-STAY ROD COVER, REPLACEMENT.
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SOME MACK GU, MRU, LEU TRUCKS BUILT FROM 03/19/2012 TO 08/30/2015 AND EQUIPPED WITH MRIDE SUSPENSIONS MAY INADVERTENTLY LOSE THE V-STAY ROD COVER (PART NUMBER 21896762) FROM THE V-STAY ROD.
BUMPER, REPLACEMENT. THE CURRENT FRONT BUMPER ON SOME MACK MRU TRUCKS BUILT BETWEEN 10/22/2007 AND 11/14/2014 MAY...
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EXPERIENCE TWISTING AND WARPING WHEN MOUNTED WITH SINGLE SUPPORT STRUTS AT EACH END OF THE BUMPER. TO PREVENT WARPING AND TWISTING OF THE FRONT BUMPER, A MORE ROBUST BUMPER DESIGN WILL REPLACE THE CURRENT BUMPER (PART NUMBER 25165882, OR 25165881).
Lighting
6 bulletinsTSB-Charge Air Cooler t-clamp install.
Mack Chassis " Air Restriction Light On " In The Cluster.
Mack Chassis - Diagnostic Trouble Code ( DTC ) P2459 Lighting The Malfunction Indicator Lamp ( MIL ); Possible Frequent...
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Regeneration Requests - OBD15 And US14+OBD16 (Non-Common Rail) Chassis
Mack Chassis - Diagnostic Trouble Code ( DTC ) P2459 Lighting The Malfunction Indicator Lamp ( MIL ); Possible Frequent...
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Regeneration Requests - OBD15 And Newer Chassis
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 ) 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).
Bendix ACom - EC80 ESP Controller; ABS And ATC Lights Illuminated, Fault Codes Present After Making Changes, Calibration...
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Or Programming With Acom
INTERFERENCE BETWEEN THE BRAKE LINING AND THE SPRING CAP WAS DISCOVERED ON SOME MACK CHU, CXU, GU, TD, LEU, MRU TRUCKS...
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EQUIPPED WITH 203 MM (8 IN) REAR DRUM BRAKES AND CAMELBACK REAR SUSPENSION.
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
3 bulletinsCBR - Accelerator Pedal: Inspection Instructions
Mack SNM14-038 When And How To Contact Tech Support ( eService & Phone )
INTERAXLE YOKE RETAINING NUT RECALL.
Infotainment
3 bulletinsMack Delphi Radio Theftlock Code Generator
Mack Chassis - FSB 392 - 004 - Radio, Replacement
Radio, Replacement (revised from FSB 392-004)
Body & Paint
2 bulletins2008 Document reformatted to be published as a TSB in Impact.
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Paint protection.
Mack Chassis - Model MRU - Inner and Outer Door Panel Repair Procedure; Outer Door Surface Separating From The Inner...
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Door Surface
Tires & Wheels
1 bulletinFlywheel Housing Thread Repair
Software & Calibration
1 bulletinMack Chassis - Bendix Vendor Configuration Program ( VCP ) Software Download Information
HVAC & Climate
1 bulletinON LEU633 AND MRU633 MODELS BUILT BETWEEN MARCH 2012 AND AUGUST 2013 THE BRASS COLLAR THAT IS CRIMPED ONTO THE STAINLESS...
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STEEL COMPRESSOR DISCHARGE LINE MAY SPLIT, RESULTING IN THE INABILITY OF THE UNIT TO BUILD AIR PRESSURE.
Air Bags & Safety
1 bulletinMACK TRUCKS: TRUCKS MANUFACTURED FROM 06/04/2014-06/18/2014 REQUIRES TIGHTENING OF SEAT BELT BOLTS.
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NO REPORTS HAVE BEEN RECEIVED OF BELTS COMING DETACHED THIS IS A PROACTIVE MEASURE FOR THE SAFETY OF THE CUSTOMERS. *LJ