2009 Mack Cxu TSBs
176 Technical Service Bulletins across 14 categories
Categories
Engine
39 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)
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.
Barksdale Leveling Valve, Leak Test
2009 Document reformatted to be published as a TSB in Impact.
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Turbo Actuator Connector Repair.
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 - MP7 And MP8 - Rear Main Crankshaft Seal Replacement - New Part, New Installation And Removal Tools
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
On some MACK CHU, CXU, GU, and TD truck models built between 04/31/2008 and 11/30/2015, the solenoid valve for the grade...
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gripper feature is prone to internal contamination in harsh environments. The internal contamination of the solenoid valve is caused by the buildup of grime, salt, road debris and other solid contaminants. In some cases, the buildup of solid contaminants caused the solenoid valve to malfunction. A similar malfunction is possible if the solenoid valve is equipped with a vent fitting that freezes over. The malfunction causes the trailer brake circuit to maintain trailer brake pressure after a grade gripper event. Replacement of the existing solenoid valve, elbow, and the addition of a new tube fitting and tube will ensure proper functionality of the grade gripper feature.
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
Automated Manual Transmission ( AMT - F ) ( mDRIVE ) Clutch Valve Unit ( CVU ) Makes Intermittent Buzzing Noise With The...
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Key On And Engine Off.Changed repair information to reflect new software available.
Engine Diagnostic Trouble Codes ( DTC's ) P24A0 And P249F Lighting The Malfunction Indicator Lamp ( MIL ) - OBD15...
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(Commonly Model Year 2016) And Newer.Updated to reflect release of FSB284-064 (Above)
IN SOME INSTANCES THE EXHAUST ROCKER PISTON CAP SCREW MAY BECOME LOOSE AND BACK OUT CAUSING LOSS OF ENGINE COMPRESSION,...
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OR A MECHANICAL INJECTOR DIAGNOSTIC TROUBLE CODE (DTC).
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.
GRADE GRIPPER SOLENOID, REPLACEMENT.
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ON SOME MACK CHU, CXU, GU, AND TD TRUCK MODELS BUILT BETWEEN 04/31/2008 AND 11/30/2015, THE SOLENOID VALVE FOR THE GRADE GRIPPER FEATURE IS PRONE TO INTERNAL CONTAMINATION IN HARSH ENVIRONMENTS. THE INTERNAL CONTAMINATION OF THE SOLENOID VALVE IS CAUSED BY THE BUILDUP OF GRIME, SALT, ROAD DEBRIS AND OTHER SOLID CONTAMINANTS. IN SOME CASES, THE BUILDUP OF SOLID CONTAMINANTS CAUSED THE SOLENOID VALVE TO MALFUNCTION. A SIMILAR MALFUNCTION IS POSSIBLE IF THE SOLENOID VALVE IS EQUIPPED WITH A VENT FITTING THAT FREEZES OVER. THE MALFUNCTION CAUSES THE TRAILER BRAKE CIRCUIT TO MAINTAIN TRAILER BRAKE PRESSURE AFTER A GRADE GRIPPER EVENT.
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.
"GRADE GRIPPER SOLENOID, REPLACEMENT.
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ON SOME MACK CHU, CXU, GU, AND TD TRUCK MODELS BUILT BETWEEN 04/31/2008 AND 05/12/2014, THE SOLENOID VALVE FOR THE GRADE GRIPPER FEATURE IS PRONE TO INTERNAL CONTAMINATION IN HARSH ENVIRONMENTS. THE INTERNAL CONTAMINATION OF THE SOLENOID VALVE IS CAUSED BY THE BUILDUP OF GRIME, SALT, ROAD DEBRIS AND OTHER SOLID CONTAMINANTS. IN SOME CASES, THE BUILD-UP OF SOLID CONTAMINANTS CAUSED THE SOLENOID VALVE TO MALFUNCTION. THE MALFUNCTION CAUSES THE TRAILER BRAKE CIRCUIT TO MAINTAIN TRAILER BRAKE PRESSURE AFTER A GRADE GRIPPER EVENT. REPLACEMENT OF THE EXISTING SOLENOID VALVE, ELBOW, AND THE ADDITION OF A NEW VENT WILL ENSURE PROPER FUNCTIONALITY OF THE GRADE GRIPPER FEATURE. "
ON SOME MACK CHU, CXU, GU, AND TD TRUCK MODELS BUILT BETWEEN 04/31/2008 AND 05/12/2014, THE SOLENOID VALVE FOR THE GRADE...
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GRIPPER FEATURE IS PRONE TO INTERNAL CONTAMINATION IN HARSH ENVIRONMENTS. THE INTERNAL CONTAMINATION OF THE SOLENOID VALVE IS CAUSED BY THE BUILDUP OF GRIME, SALT, ROAD DEBRIS AND OTHER SOLID CONTAMINANTS. IN SOME CASES, THE BUILD-UP OF SOLID CONTAMINANTS CAUSED THE SOLENOID VALVE TO MALFUNCTION. THE MALFUNCTION CAUSES THE TRAILER BRAKE CIRCUIT TO MAINTAIN TRAILER BRAKE PRESSURE AFTER A GRADE GRIPPER EVENT.
GRADE GRIPPER SOLENOID, REPLACEMENT.
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ON SOME MACK CHU, CXU, GU, AND TD TRUCK MODELS BUILT BETWEEN 04/31/2008 AND 05/11/2015, THE SOLENOID VALVE FOR THE GRADE GRIPPER FEATURE IS PRONE TO INTERNAL CONTAMINATION IN HARSH ENVIRONMENTS.
GRADE GRIPPER QUICK RELEASE VALVE, REPLACEMENT.
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ON SOME MACK CHU, CXU, AND GU TRUCKS BUILT BETWEEN 04/31/2008 AND 01/05/2015, AND EQUIPPED WITH THE GRADE GRIPPER FUNCTION MAY EXPERIENCE A SLOW RELEASE OF THE TRAILERS SERVICE BRAKES. ADDITIONALLY, A DELAY IN THE RELEASE OF THE GRADE GRIPPER FUNCTION MAY BE CAUSED BY CERTAIN TRUCK OPTIONS AND TRAILER COMBINATIONS USED BY THE OPERATOR.
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 TRUCKS:DUE TO EXCESSIVE MOISTURE IN THE CLIMATE UNIT, SOME VEHICLES MAY DEVELOP A BLOWER MOTOR FAILURE.
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*JS
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 TRUCKS: ENGINE TUBOCHARGER COMPRESSOR BYPASS VALVE, AIRLINE ROUTING.
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THIS DOCUMENT COVERS THE PROCEDURE FOR ROUTING THE FLEXIBLE AIR LINE AROUND THE FRONT OF THE ENGINE IF THE EXISTING STEEL AIR LINE FAIL. *JS
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: 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 TRUCKS: THERE ARE ENGINE ECM SOFTWARE UPDATES.
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*RM
MACK TRUCKS: THERE IS A NEW THERMOSTAT SEAL AND COVER TO PREVENT COOLANT LEAKAGE.
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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: LOW NOX IDLE, DOES NOT FUNCTION WITH HAND THROTTLE.
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THE ELECTRONIC HAND THROTTLE ON CERTAIN CHU, CXU, GU AND TD MODEL CHASSIS WHEN ENGAGED, WILL OVERRIDE THE LOW NOX IDLE COMPLIANCE. A LIST OF AFFECTED CHASSIS HAS BEEN SENT TO ALL APPLICABLE DEALERS. *PE
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.
Mack Chassis - Rear Axle Overheat
CBR: To correct the MID136 SID 66 FMI 7 fault code the latest Bendix VCP fi le will need to be downloaded.
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
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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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.
2008 Document reformated to be published as a TSB in Impact.
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Torque rod interference.
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
2008 Document reformated to be published as a TSB in Impact.
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Frame reinforcement plate.
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)
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
Mack Chassis - Equipped With Bendix Fusion, With Or Without Lane Departure Warning ( LDWS ) - Diagnostic Trouble Code (...
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DTC ) SPN 516103 FMI 19, Bendix Code 167 With Possible "Lane Departure Warning Malfunction" Message - US17 And Newer
Mack Chassis - Equipped With Bendix Fusion, With Or Without Lane Departure Warning ( LDWS ) - Diagnostic Trouble Code (...
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DTC ) SPN 70 FMI 9, Bendix Code 64 With Possible "Lane Departure Warning Malfunction" Message - US17 And Newer
Mack Chassis - CXU - Lane Departure Warning System ( LDWS ) More Sensitive To The Right-hand ( Passenger ) Side Of The...
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Vehicle; PI0882
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
MACK TRUCKS: THE DIAGNOSTIC CONNECTOR MAY BECOME LOOSE.
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INFORMATION ON REPLACEMENT OF THE DIAGNOSTIC RETAINER CLIP. *RM
Fuel System
25 bulletins2008 Document reformatted to be published as a TSB in Impact.
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DPF outlet pipe heat shield.
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
Diagnostic Trouble Code ( DTC ) P02FA Illuminating The Malfunction Indicator Lamp (MIL) - US17 (GHG17, Common Rail Fuel...
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System) Chassis ONLY
Diagnostic Trouble Code ( DTC ) P0471 Illuminating The Malfunction Indicator Lamp (MIL) - US17 (GHG17, Common Rail Fuel...
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System) Chassis ONLY
Diagnostic Trouble Code ( DTC ) P0420 Illuminating The Malfunction Indicator Lamp (MIL) - US17 (GHG17, Common Rail Fuel...
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System) Chassis ONLY
Diagnostic Trouble Code ( DTC ) P009E - 73 - Fuel Pressure Relief Control Performance / Stuck Off - GHG17 ( US17 )...
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Chassis With Common Rail Fuel System, Updated to reflect GHG17 software release
Diagnostic Trouble Code ( DTC ) P009E - 73 - Fuel Pressure Relief Control Performance / Stuck Off - GHG17 ( US17 )...
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Chassis With Common Rail Fuel System.Changed repair instructions to reflect new procedures
Service Only Regen Requested With No Warning.
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Diagnostic Trouble Codes ( DTC ) P24A4 / P10FE Active Or Inactive With Several Counts - OBD15 And OBD16 Conventional Chassis; Does Not Apply To US17 (Common Rail Fuel System) Chassis.Updated to reflect release of FSB284-064 (Above)
Mack Chassis - Diesel Exhaust Fluid ( DEF ) System Cleaning/Flush After A Pump Failure or System Contamination.Removed...
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Tech Tip, Added correct operation ID
Expired - Refer to K93039325 - Mack Chassis - SNM16-032 DEF (Diesel Exhaust Fluid) Contamination In Diesel Fuel.New...
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solution released with improved information
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
MACK: ON THE RIGHT SIDE OF TRUCK, IS THE MOUNTED STANCHION EXHAUST BRACKET AND FUEL VENT LINES, WHICH THE FUEL TANK VENTILATION FILTER IS ADDED.
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MODELS CHU, CXU, GU, TD, MP7, MP8, MP10, US07, US10. MODEL YEARS 2008-2012. *PE
MACK TRUCK: THERE IS FUEL LEAKAGE AT TANDEM FUEL PUMP.
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THE REPLACEMENT OF FUEL PUMP WILL NOT CORRECT WEEP HOLE LEAKAGE OF FLUID LEAK. CHP, CTP, CXP, CHU, CXU, GU, LEU, MRU, TD, CMM, CMH MODELS. *PE
MACK TRUCKS: THERE ARE NEW EGR OUTLET HOSE CLAMPS.
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*RM
MACK: PROCEDURE TO FIX THE AN INSULATION BLANKET IN THE EXHAUST SYSTEM THAT CAN DETERIORATE OVER TIME.
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*RM UPDATED 9/12/11. *PE
MACK: PROCEDURE TO FIX THE AN INSULATION BLANKET IN THE EXHAUST SYSTEM THAT CAN DETERIORATE OVER TIME.
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*RM UPDATED 9/12/11. *PE
MACK: THE FUEL LEVEL SENDER IS INCORRECTLY INSTALLED AND CAN CAUSE INCORRECT FUEL LEVEL READINGS IN THE INSTRUMENT PANEL.
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*RM UPDATED 9/27/2011. *PE
Electrical
22 bulletinsMack MMD Alternator Pulley
2008 Document reformated to be published as a TSB in Impact.
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Revised battery ti battery cable
2009 Document reformatted to be published as a TSB in Impact.
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Daytime Running Lamp (DRL) Relay Block
(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
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
INSTRUMENT CLUSTER REPROGRAMMING, VEHICLE BUILT FROM JAN.
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1, 2007 TO SEPT. 3, 2012, MAY EXPERIENCE AN INCREASE OF PARASITIC BATTERY DRAIN WITH KEY OFF.
CAB HARNESS INSULATION, INSTALLATION.
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CAB WIRING HARNESS MAY EXPERIENCE CHAFING.
POWER WIRES, REROUTING, CERTAIN MACK CHU, CXU, GU, AND TD TRUCK MODELS BUILT BETWEEN 01/01/07 AND 10/22/13, UTILIZES TWO...
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(RED) POWER WIRES THAT ROUTE FROM THE BUSSED ELECTRICAL CENTER (BEC) AND BEHIND THE RADIO. THE (RED) POWER WIRES COULD POSSIBLY CHAFE ON THE RADIO BRACKET.
MACK: ON CERTAIN MACK VEHICLES BUILT BEFORE 2/13/2012, THE FRONT CHASSIS TO UREA TANK CONNECTION, LOCATED ON THE SIDE OF...
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THE DEF TANK MAY RUB MOUNTING BRACKET OR NOT STAY SECURED. *JS
MACK: BATTERY TERMINAL CORROSION.
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ON CERTAIN CXU MODELS EQUIPPED WITH THE THREE BATTERY BOX DESIGN, THE BATTERY TERMINALS HAVE CORRODED DUE TO CONTAMINANTS SPLASHING DIRECTLY ONTO THE BATTERIES. *JS
MACK TRUCKS: THE FUSE IDENTIFICATION DECAL IS BEING CORRECTED.
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*RM
MACK TRUCK: THERE IS NEW ROUTING FOR THE HEADLAMP HARNESS.
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*RM
MACK TRUCKS: THE LOCATION OF THE NITROUS OXYDE SENSOR AND PIPING AROUND IT HAS BEEN CHANGED TO PROTECT IT FROM MOISTURE...
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DAMAGE IF WATER ENTERS THE EXHAUST. *RM
MACK TRUCKS: THE BATTERY BOX LID MAY COME OFF WHEN STEPPING ON THE STEP.
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*RM
Transmission
18 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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Two-Piece clutch brake.
Warranty Automated Manual Transmission ( AMT, I-Shift, mDrive ) Control Housing Assembly; Guidelines For Filing A Claim...
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For Chassis Return Visit With Transmission Issues After A Repair Requiring Control Housing Removal And Reinstallation - US07 And N.
Automated Manual Transmission ( AMT ) I-Shift / mDRIVE - Ribbon Harness Replacement - Speed Sensor Bolts, Possible Fault...
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Codes P1058 - 21 Or MID 130 PID 161 FMI 1
Mack Chassis - Vehicles Equipped With An Automated Manual Transmission Model F ( AMT-F, mDrive ), Premium Tech Tool (...
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PTT ) Gearbox Calibration Failure; Gearbox Calibration Operation Stops And Fails At 33% When Run With Transmission Removed
Mack Chassis - Equipped With An Automated Manual Transmission (AMT-D, mDrive) - Unable To Program Transmission...
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Electronic Control Unit (TECU) That Comes With A Reman Transmission; Information For Programming TECUs For Different Emissions Levels - FSB
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
Clutch Pedal Micro Switch Replacement.
Transmission Oil Cooler Hose, Replacement
Automated Manual Transmission (AMT) Faults - Diagnostic Trouble Codes (DTC) P1052-18 Or MID 130 PID 33 FMI 5...
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Intermittent Fault In Cold Weather - US07 And Newer Emissions, Model Year 2008 And Newer
MACK TRUCKS: THE AIR ASSISTED CLUTCH CABLE ON SOME VEHICLES MAY FRAY AT THE CLEVIS.
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*JS
MACK TRUCK: LOCATED BETWEEN CLUTCH HOUSING AND CLIPPING POINT ON FRAME, BEHIND BATTERY BOX, IS WHERE BATTERY CABLES ARE...
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RUBBING OVER SLUNG CROSS MEMBERS, DUE TO IMPROPER CABLE ROUTING AND NEEDS TO BE REROUTED. MODELS CXU. NO MODEL YEARS LISTED. . *PE
MACK: CLUTCH OPERATION ERROR PREVENTS STARTER ENGAGEMENT UNLESS PEDAL IS FULLY DEPRESSED.
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*RM
MACK TRUCKS: THE TRANSMISSION SHIFT INSTRUCTION LABEL HAS BEEN UPDATED.
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*RM
MACK: THE ANTI-LOCK BRAKE SYSTEM HARNESS IS RUBBING AGAINST THE CLUTCH PEDAL WHICH CAN CAUSE THE ELECTRONIC MALFUNCTION LIGHT TO COME ON.
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*RM
MACK TRUCK: THE OIL SLINGER THREADS ON THE INPUT SHAFT OF THE TRANSMISSION WERE THREADED INCORRECTLY AND COULD CAUSE LEAKAGE IN THE AREA.
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*RM
MACK TRUCKS: THERE ARE NEW REVISED TORQUE PROCEDURES TO PREVENT THE BULL GEAR MOUNTING SCREWS FROM LOOSENING.
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*RM
Suspension
10 bulletins2008 Document reformatted to be published as a TSB in Impact.
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Air suspension ride height.
2008 Document reformatted to be published as a TSB in Impact.
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Rear Suspension Repair.
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
MACK: INFORMATION PROCEDURE REGARDING THE INSPECTION AND REPLACEMENT OF TOP PLATE AND SPRING SEAT, DUE TO DEFECTIVE...
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BUSHINGS OF TWIN Y AIR SUSPENSION, IF NEEDED. MODEL CHU, CXU. NO YEARS LISTED. *PE
MACK: ON SOME MODEL TRUCKS, THE HOOD LIFE OF THE SHOCKS ARE SHORT AND NEED TO INSTALL NEW SHOCKS, WITH PROTECTIVE BOOT.
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MODELS 2009-2012 CXU. *PE
MACK TRUCKS: REAR SUSPENSION HARDWARE TORQUE.
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BOLTS ARE LOOSE OR INCORRECTLY TORQUED ON THE PRIMAAX SUSPENSION. *JS UPDATED 07/18/2013 *JS
MACK TRUCKS: REAR SUSPENSION ADJUSTMENT WASHERS.
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REPLACEMENT OF THE SUSPENSION ADJUSTMENT WASHERS IS REQUIRED. *JS
MACK: DURING EXTREME DOWNWARD ARTICULATION OF REAR AXLE, THE AIR SPRING MAY SEPARATE AT MOUNTING BELL.
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*PE
MACK TRUCKS: THERE MAY BE INCORRECT TORQUE SPECIFICATIONS ON THE FAN HUB ASSEMBLY.
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*RM
Software & Calibration
7 bulletins2007 Document reformatted to be published as a TSB in Impact.
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Updated Crossmember for improved clearance.
Mack Chassis - Bendix Vendor Configuration Program ( VCP ) Software Download Information
Mack Chassis - Diagnostic Trouble Code ( DTC ) P0128, Diagnostic And Repair - US14+OBD13 (Commonly Year Model 2015) And...
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Newer.Updated to reflect release of FSB284-064 (Above)
MACK TRUCK: FLASHERS ARE TO BE REMOVED DUE TO DURABILITY ISSUES.
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*JS
MACK: TORQUE ROD REPLACEMENT ON FRONT REAR AXLE.
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*JS UPDATED 5/9/12. *PE
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
MACK TRUCK: THERE IS A SOFTWARE UPDATE.
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*RM
Lighting
6 bulletinsTSB-Charge Air Cooler t-clamp install.
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 ) P249C Intermittently Lighting The Malfunction Indicator Lamp ( MIL ) - OBD15 And OBD16,...
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Model Year ( MY ) 2016 and 2017 Chassis.Updated to reflect release of FSB284-064 (Above)
Diagnostic Trouble Code ( DTC ) P0422 Lighting The Malfunction Indicator Light ( MIL ) - OBD15 And OBD16 Chassis...
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(Non-Common Rail).Updated to reflect release of FSB284-064 (Above)
MACK TRUCKS: THE CHASSIS FAIRING SKIRT NEEDS TO BE INSTALLED.
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*JS
Brakes
4 bulletinsCBR - Active "Set Park Brake" Message On Drivers Information Display (DID).
V-MAC - ABS Malfunction Lamp On - ( Eaton ABS Active Code 17-10 / Arvin Meritor Wabco Active Code 7-4 )
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 TRUCKS: FOUR WAY FLASHER ABS FAULT.
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CERTAIN VEHICLES EQUIPPED WITH A WEBB SOLID STATE FLASHER, BUILT FROM JAN. 1, 2010 TO JUNE 29, 2012 MAY EXPERIENCE AN ACTIVE ABS FAULT WHEN THE 4 WAY FLASHER IS ENABLED. *JS
Tires & Wheels
4 bulletinsFlywheel Housing Thread Repair
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
MACK TRUCKS: OIL SEEPAGE AT FLYWHEEL HOUSING.
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THIS PROBLEM HAS ALREADY BEEN SOLVED IN PRODUCTION, BUT THE PRODUCTION SOLUTION IS NOT COMPATIBLE WITH PREVIOUS GENERATION FLYWHEEL HOUSINGS. *JS
MACK TRUCKS: SOME OF THE FIFTH WHEEL MOUNTING HARDWARE MAY BE CONTACTING THE HUCK BOLTS THAT ARE USED TO MOUNT THE FIFTH...
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WHEEL MOUNTING BRACKETS TO THE FRAME. THERE IS A PROCEDURE TO ADDRESS THE ISSUE. *RM
Body & Paint
4 bulletins2008 Document reformatted to be published as a TSB in Impact.
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Fender mounted mirror washer kit.
2008 Document reformatted to be published as a TSB in Impact.
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Paint protection.
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
MACK TRUCK: PASSENGER DOOR PEEP WINDOW IS LOOSENING FROM DOOR.
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THIS MAY RESULT IN THE WINDOW BUTYL TAPE SOFTENING BECAUSE OF HIGH TEMPERATURES. *PE
Pre-Delivery & Maintenance
3 bulletinsCBR - Accelerator Pedal: Inspection Instructions
CBR: 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
Infotainment
2 bulletinsInstrument Cluster Programming - Programming Fails Or Errors Display When Replacing An Instrument Cluster With A Newer...
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Part Number (Conversion Kit) - US04 To US10 Chassis (9-Pin Diagnostic Connector)
Mack Chassis - Replacement / Upgrade Of The Programmable Global Audio ( GLAD ) Radio With A Non-programmable Radio
HVAC & Climate
1 bulletin2008 Document reformatted to be published as a TSB in Impact.
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HVAC fine particulate filter.