2008 Mack Mru TSBs
174 Technical Service Bulletins across 12 categories
Categories
Engine
46 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.
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.
Barksdale Leveling Valve, Leak Test
2008 document reformatted to be published as a TSB in Impact.
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Supplemental air valve fitting.
2008 document reformated to be published as a TSB in Impact.
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All CXU, CHU, GU, MRU's built with Volvo Engines and 07 Emissions. Cleaning Aftertreatment Fuel Injectors.
Programming Failure - Chassis With Cummins Engine And An Allison Transmission
US10 Emission Engines - Diagnostic Trouble Code ( DTC ) SPN 1231 FMI 9 Troubleshooting.
Emcon (Spark Assist) Engine Aftertreatment System Troubleshooting Check Sheet - US07 Emissions
Low Oil Pressure Diagnostic Process For 11 Liter Engines
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 Chassis - Diagnostic Trouble Codes ( DTC's ) - P020113, P020213, P020313, P020413, P020513, P020613, Cylinders 1...
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Through 6 Injector A Open Circuit
Diagnostic Trouble Codes (DTC) For The Engine Pre-Heat Relay: Supplementary Instructions
Mack Chassis - Emcon (Spark Assist) Engine Aftertreatment System Troubleshooting Check Sheet - US07 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.
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.
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.
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.
MACK TRUCK: MUFFLER INLET PIPE WILL FALL OUT, AND A NEW MUFFLER INLET PIPE, TURBORCHARGER OUTLET PIPE, LENGTHENED...
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EXHAUST FLEX PIPE WAS DESIGNED TO ADDRESS THIS CONDITION AND WORK TOGETHER TO REDUCE RIGIDITY. *PE
MACK TRUCK: DUE TO OIL CONTAMINATION INTO ENGINE WIRE HARNESS, MAIN OIL GALLERY PRESSURE SENSOR OR PISTON COOLING JET...
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PRESSURE SENSOR HAS FAILED AND NEW ANTI WICKING JUMPER HARNESS IS AVAILABLE TO STOP OIL FROM WICKING BACK AND CAUSING DAMAGE TO NEW SENSOR. MODEL CHU, CXU, GU, LEU, MRU, TD. *PE
MACK: ON SOME TRUCKS, OIL CONTAMINATION INTO ENGINE WIRE HARNESS, MAY BE FROM OIL LEVEL SENSOR FAILURE AND AN ANTI...
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WICKING PIGTAIL SPLICE KIT IS AVAILABLE. MODEL CHU, CXU, GU, LEU, MRU, TD. NO YEARS LISTED. *PE
MACK: INCORRECT HARDWARE ON FRONT ENGINE MOUNT.
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BOLTS ARE THE INCORRECT LENGTH AND OR GRADE FOR THE ENGINE. *KB
MACK TRUCKS: HOSE, ENGINE OIL FILL TUBE.
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ENGINES BUILT BEFORE FEBRUARY 11, 2013 MAY EXHIBIT MINOR OIL SEEPAGE FROM THE ENGINE OIL FILLER TUBE HOSE OR DISPLAY STRESS CRACKS IN THE HOSE. *JS UPDATED 7/3/13. *PE
MACK TRUCK: INFORMATION PROVIDED REGARDING MODIFICATION OF EGR VALVE ON ENGINES AND REMOVAL OF POPPET SHAFT END CAP O RINGS.
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MODELS CHU, CXU, GU, LEU, MRU. NO MODEL YEARS LISTED. *PE
MACK TRUCKS: EGR DIFFERENTIAL PRESSURE SENSOR PIN FRETTING.
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SEVERE FRETTING DAMAGE OF THE ENGINE EXHAUST GAS RECIRCULATION DIFFERENTIAL PRESSURE SENSOR'S (EGR DIFFERENTIAL PRESSURE SENSOR) CONNECTOR MAY CAUSE AN UNRELIABLE SIGNAL TO THE SENSOR ON MACK MP8 EPA2007 ENGINES. *JS
MACK: SOFTWARE UPDATE FOR ENGINE CONTROL MODULE (ECM).
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*PE
MACK: DUE TO FRETTING OF CONNECTOR PINS IN ENGINE VGT ACTUATOR CONNECTOR, A NEW MOUNTING ARRANGEMENT HAS BEEN...
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DEVELOPED AND RELOCATION OF ENGINE VGT ACTUATOR CONNECTOR. MODELS CHU, CXU, GU, MRU, MP8. *PE UPDATED 7/31/12. *PE
MACK: WHERE THE TRANSMISSION AND/OR ENGINE SUPPORTS ARE ATTACHED, UNDER SEVERE OPERATING CONDITIONS, CRACKS HAVE BEEN...
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LOCATED AND THE MOUNTING BRACKETS , WITH NEW FRAMES, SHOULD BE REPLACED. MODELS LEU, MRU, MP7. MODEL YEARS 2008-2012. *PE
MACK: AN UNRELIABLE SIGNAL TO ENGINE VGT ACTUATOR FROM ENGINE VARIABLE GEOMETRY TURBOCHARGER (VGT) ACTUATOR HARNESS...
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THAT HAS SEVERE FRETTING DAMAGE, THE CONNECTOR PIN AND SOCKET CONTACTS SHOULD BE REPLACED. *PE UPDATED 9/17/12. *PE
MACK TRUCKS: SEVERE FRETTING DAMAGE OF THE ENGINE VARIABLE GEOMETRY TURBOCHARGER ACTUATOR (ENGINE VGT ACTUATOR) HARNESS...
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AND TURBINE SHAFT SPEED SENSOR (TSS) CONNECTORS MAY CAUSE AN UNRELIABLE SIGNAL TO THE ENGINE VGT ACTUATOR. ALSO INCLUDED MODEL CMM AND CMH. NO MODEL YEARS GIVEN. *JS
MACK: COMBUSTION AIR VALVE AND PIPING ARRANGEMENT.
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ON THE LEU AND MRU MODEL VEHICLES IT HAS BEEN DETERMINED THAT THERE WAS INSUFFICIENT SUPPORT OF THE COMBUSTION AIR VALVE AND PIPING. *JS
MACK TRUCKS: THERE ARE ENGINE ECM SOFTWARE UPDATES.
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*RM
MACK TRUCK: ENGINE ECM AND ACM SOFTWARE UPDATES.
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ENHANCEMENTS ARE AVAILABLE FOR THE ENGINE CONTROL MODULE (ECM) AND AFTERTREATMENT CONTROL MODULE (ACM). DOES NOT APPLY TO MACK TRUCKS AUSTRALIA. MODELS MRU, LEU, GU, CHU, CXU. NO MODEL YEARS LISTED. *PE
MACK TRUCK: A/C HOSE CONDENSATION REMEDIATION.
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THE LOW PRESSURE A/C HOSE USED ON THE OPTIONAL REDDOT ROOF MOUNTED AIR CONDITIONING UNIT MAY DRIP CONDENSATION ONTO THE ELECTRONICS AND OPERATOR CONTROLS MOUNTED ON THE ENGINE TUNNEL. MODELS LEU, MRU. NO MODEL YEARS LISTED. *PE
MACK TRUCK: ON CERTAIN TRUCK CHASSIS MANUFACTURED PRIOR TO MAY 30, 2008, THE POSSIBILITY EXISTS FOR THE MAIN CAB...
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HARNESS TO RUB AGAINST THE CHARGE AIR COOLER IN THE LEFT HAND CORNER OF THE CAB. TO ELIMINATE THIS CONDITION AND PROVEN T HARNESS DAMAGE, A METAL PLATE (PART #82266743) AND RUBBER GASKET (PART #82267132) ARE AVAILABLE THROUGH THE MACK PARTS SYSTEM TO REPLACE THE EXISTING PLASTIC ENGINE TUNNEL PASS THROUGH ASSEMBLY. NO MODEL OR MODEL YEARS LISTED. *PE
MACK TRUCK: ELECTRONIC HAND THROTTLE FUNCTIONS REGARDLESS OF PARK BRAKE STATUS; IT HAS BEEN DETERMINED THAT THE...
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ELECTRONIC HAND THROTTLE ON CERTAIN MRU AND LEU MODEL CHASSIS WILL FUNCTION WITH THE PARKING BRAKE DISENGAGED, THUS ALLOWING THE VEHICLE OPERATOR TO INCREASE ENGINE SPEED EVEN WITH THE PARKING BRAKES RELEASED. *PE
MACK TRUCK: MODELS CXU, CHU, GU, MRU AND LEU CHASSIS.
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US07 MP7 ENGINE MANAGEMENT SYSTEM (EMS) SOFTWARE UPGRADE. THE REVISION INCLUDES A REDUCTION I N PEAK INJECTION PRESSURES TO IMPROVE LONGEVITY OF UNIT INJECTOR COMPONENTS. *PE UPDATED 9/28/09. *PE UPDATED 2/12/10. *PE
SUPPLEMENTAL AIR VALVE AND FITTING ARRANGEMENTS - NON-CATALYZED DPF.
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(DOES NOT APPLY TO MACK TRUCKS AUSTRALIA). *PE
CRACKS IN ENGINE TUNNEL AT LEFT-SIDE CROSS SILL -MR AND MRU MODELS.
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*TT UPDATED 6/11/08. *NJ
Other
33 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.
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
Mack Model TE,LR - Frame Over Height
2008 document reformatted to be published as a TSB in Impact.
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Injector removal tool.
2008 document reformatted to be published as a TSB in Impact.
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Injector copper sleeves.
2008 document reformatted to be published as a TSB in Impact.
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Synchronizer fastener change.
2008 document reformatted to be published as a TSB in Impact.
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Rocker Shaft Oil Transfer Tube Installation.
2008 document reformated to be published as a TSB in Impact.
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Intake mounting hardware.
2008 document reformated to be published as a TSB in Impact.
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Revised fasteners for Retarder.
2009 Document reformatted to be published as a TSB in Impact.
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New Air Dryer
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 Chassis - Air System Schematics For Models - MRU, LEU And ( LR ) Using The Same Schematic As the LEU
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: LOW OIL PRESSURE.
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STORED DTC SPN 100 FMI 1, DURING LONG HARD PULL CONDITIONS. *JS
MACK TRUCKS: THERE MAY BE ISSUES WITH BOLTS SUCH AS LOOSENING/ BREAKING AT THE TORQUE ROD ATTACHMENT.
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*RM
MACK TRUCKS: INFORMATION ON THE ADJUSTMENT OF THE AFTERTREATMENT COMBUSTION AIR INLET ORIFICE.
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*RM
MACK TRUCK: HALDEX REAR SLACK ADJUSTERS REPLACEMENT.
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NO MODEL YEARS LISTED. *PE
Fuel System
29 bulletins2008 document reformatted to be published as a TSB in Impact.
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All LEU & MRU Models with a MP7, a Non-Catalyzed DPF, and 07 Emissions. Design and function.
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
System Date And Time, Information; Diagnostic Tool ( J-Pro, Premium Tech Tool ( PTT ) ) Displays Incorrect Timestamp For...
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Diagnostic Trouble Code ( DTC ) / Fault Code Occurrences, Possible Data Link Codes Present - US07 And Newer Emissions, Common Mod
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
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 - 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
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
MACK TRUCK: REPLACEMENT OF AFTERTREATMENT DIESEL EXHAUST FLUID (DEF) COOLANT HOSE REPLACEMENT.
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*PE
MACK TRUCKS: CONNECTOR PLUGS FOR THE FUEL HEATER SOLENOID MAY BE MISSING.
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*RM
MACK TRUCKS: THE FUEL LEVEL GUAGE MAY READ INCORRECTLY WHEN THE VEHICLE IS FILLED.
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*RM
MACK TRUCKS: THERE ARE NEW EGR OUTLET HOSE CLAMPS.
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*RM
MACK TRUCKS: THE FUEL LEVEL SENDER IS MAKING IMPROPER CONTACT AND CAUSING THE FUEL GUAGE TO READ INCORRECTLY.
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*RM
MACK TRUCK: AFTERTREATMENT FUEL INJECTOR (AFI) AIR PURGE SYSTEM, KIT INSTALLATION INSTRUCTIONS.
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A CONTINUOUS AIR PURGE SYSTEM WAS DEVELOPED AND IMPLEMENTED INTO PRODUCTION ON VEHICLES EQUIPPED WITH A CATALYZED DIESEL PARTICULATE FILTER (DPF). SYSTEM PROVIDES A CONSTANT STREAM OF AIR THROUGH THE NOZZLE TIP TO COMPLETELY PURGE ANY RESIDUAL FUEL FROM THE NOZZLE FOLLOWING A DPF REGENERATION. NO MODEL YEARS LISTED. *PE
EXHAUST ROCKER ARM, COMBUSTION SEALING WASHER AND UNIT INJECTOR YOKE REPLACEMENT.
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*PE
Electrical
26 bulletins2007 document reformatted to be published as a TSB in Impact.Coolant level sensor.
2009 Document reformatted to be published as a TSB in Impact.
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DPF Harness Routing
2009 Document reformatted to be published as a TSB in Impact.
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Cab Roof Harness Repair and Pass-Through Hole Modification
(Back Office) - Cruise Control Inoperative After Updating Software VECU5 Without ESP Package (UESP).
Sensor And Parameter Value Monitor - Template Parameter List For Pre-OBD (9-Pin Diagnostic Connector) Chassis In Premium...
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Tech Tool ( PTT ); Regeneration And Road Test Sensor Monitor Parameters - US07 And US10 Emissions, Model Years 2008 To 2013
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
Lighting Control Module ( LCM ) Replacement - Refer To Technical Parts Information ( TPI ) 364 - 034 Control Unit
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
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
** 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
MACK TRUCK: INFORMATION REGARDING THE EXPANSION TANK COOLANT PIPE STATIC MAKING CONTACT WITH STARTER SOLENOID WIRE AND...
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RUBBING THROUGH WIRE INSULATION. MODELS LEU AND MRU. *PE
MACK TRUCKS: INFORMATION ON THE REPLACEMENT OF THE AFTERTREATMENT ATOMIZATION MODULE.
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*RM
MACK TRUCKS: SPARK ASSISTED FLAME TEMPERATURE SENSOR REPLACEMENT INFORMATION.
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*RM
MACK TRUCKS: A WIRING HARNESS CONNECTOR IN THE FRONT CHASSIS MAY NOT SEAL CORRECTLY CAUSING CORROSION.
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*RM
MACK TRUCK: ON SOME TRUCKS THE MAIN CAB HARNESS HAS BEEN FOUND TO COME IN CONTACT WITH THE RADIATOR RECIRCULATION...
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SHIELD ON THE COOLING PACKAGE WHEN THE CAB IS DOWN AND LOCKED IN OPERATING POSITION. *PE
MACK TRUCK: CAB ROOF HARNESS REPAIR AND PASS THROUGH HOLE MODIFICATION.
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ON CERTAIN TRUCK MODEL CHASSIS, THE POSSIBILITY EXISTS FOR THE CAB ROOF HARNESS TO RUB AGAINST THE EDGE OF THE PASS THROUGH HOLE WHERE THE HARNESS TRANSITIONS DOWN THE B POST ON THE LEFT HAND SIDE OF THE CAB. *PE
MACK TRUCK: AFTERTREATMENT DPF SPARK ASSISTED IGNITION SYSTEM ELECTRODE TEST PROCEDURE.
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AFFECTED MODELS LEU, MRU. NO MODEL YEARS LISTED. *PE
MACK TRUCKS: ON CERTAIN MODEL CHASSIS, THE POSSIBILITY EXISTS FOR THE CAB ROOF HARNESS TO RUB AGAINST THE EDGE OF THE...
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PASS THROUGH HOLE WHERE THE HARNESS TRANSITIONS DOWN THE B POST ON THE LEFT HAND SIDE OF THE CAB. *PE
DIFFERENTIAL PRESSURE SENSOR HOSES AND CLAMPS - NON-CATALYZED DIESEL PARTICULATE FILTER (DPF) USED ON MRU AND LEU MODELS.
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(DOES NOT APPLY TO MACK TRUCKS AUSTRALIA). *PE
Transmission
14 bulletinsCBR - Automated Manual Transmission ( AMT ) Flywheel Pilot Bearing Wear On Input Shaft.
2008 document reformatted to be published as a TSB in Impact.
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T300 transmission synchronizers repair.
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
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.
MACK TRUCK: THE TRANSMISSION OIL COOLER COOLANT SUPPLY PIPING ARRANGEMENT MAY PREVENT INSTALLATION OF A DRIVESHAFT TO AN...
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ACCESSORY PUMP WITH THE TRANSMISSION MOUNTED PTO LOCATED IN THE 8 O'CLOCK POSITION. MODEL YEARS UNKNOWN. *PE
MACK TRUCK: REVISED AUTOMATIC TRANSMISSION OIL COOLER SUPPLY PIPE COUPLING HOUSE.
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THE PIPE TO THERMOSTAT HOUSING CONNECTION WAS IMPLEMENTED INTO PRODUCTION ON CERTAIN MODEL CHASSISES. MODEL YEARS UNKNOWN. *PE
MACK TRUCKS: A REVISED COUPLING HOSE FOR THE ALLISON AUTOMATIC TRANSMISSION OIL COOLER SUPPLY PIPE TO THERMOSTAT HOUSING...
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CONNECTION WAS IMPLEMENTED INTO PRODUCTION ON MRU AND LEU MODEL CHASSIS. MODEL YEARS UNKNOWN. *PE
TRANSMISSION OIL COOLER PIPING REVISION.
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*PE UPDATED 7/8/09. MODEL YEARS UNKNOWN. *PE
Lighting
8 bulletinsMack Chassis - No Gauge Cluster Backlight
TSB-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)
MACK TRUCKS: TORQUE ROD TO MOUNTING BRACKET BOLTS WERE INSTALLED INCORRECTLY.
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THE BOLTS WERE INSTALLED IN AN OPPOSING MANNER. *RM
Brakes
6 bulletinsCBR - Active "Set Park Brake" Message On Drivers Information Display (DID).
2008 document reformatted to be published as a TSB in Impact.
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ABS sensor mounting bracket.
2008 document reformatted to be published as a TSB in Impact.
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Service Brake Switch Test.
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.
REVISED FASTENERS FOR TELMA YOKE AND ROTOR-TO-COMPANION FLANGE - GU, MRU AND LEU MODELS WITH TELMA RETARDER.
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*PE
Suspension
5 bulletinsElectronically 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
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).
MACK TRUCKS: PROCEDURE TO REPLACE BOLTS ON THE FRONT SPRING BRACKET WHEN THEY BECOME LOOSE OR BROKEN.
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*RM
MACK TRUCK: TORQUE ROD RELOCATION FOR HN SUSPENSION.
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CERTAIN MODEL TRUCKS WITH HN SUSPENSION HAVE BEEN FOUND TO MAKE CONTACT WITH THE TORQUE ROD AT THE CARRIER ASSEMBLY BRACKET. *PE UPDATED 9/9/11. *PE
Pre-Delivery & Maintenance
3 bulletinsCBR: eWarranty To UCHP Labor Code ( SCC Code ) Crossover, Conversion Information For Use With Campaigns ( FI, PI ) And...
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Recalls ( EC, SC ), Location On Trucks Dealer Portal ( TDP )
Stock Vehicle Storage and Maintenance
2008 document reformated to be published as a TSB in Impact.
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Injector rocker arm service.
Software & Calibration
2 bulletinsMack Chassis - Bendix Vendor Configuration Program ( VCP ) Software Download Information
MACK TRUCKS: THERE ARE CRACKS IN A STEEL OIL TUBE THAT CAN LEAD TO LEAKING.
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*RM UPDATED 2/21/12. *PE
Infotainment
1 bulletinCBR: FSB 381-049, Instrument Cluster Reprogramming ( MID140 ) - (Fault Code MID 140 PSID 200 FMI 9 Being Displayed )
Body & Paint
1 bulletin2008 document reformatted to be published as a TSB in Impact.
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Revised Mirror Mounting Arrangement.