CBR 2362-3 202604
Service Bulletin/Repair Instructions
CBR - Mack Carrier Nut Adhesive Change.
Vehicle report
2009 MACK CHU
Service bulletins
162 bulletinsTechnical service bulletins are instructions a manufacturer sent its dealers about a known fault. They are not recalls and the work is usually not free, but they are the clearest signal of a problem the manufacturer already knows about.
CBR 2573-1 202604
Service Bulletin/Repair Instructions
CBR - Mack Chassis - Through Shaft Bearing Retainer Breakage On Mack Carriers.
CBR 820-9 202601
Service Bulletin/Repair Instructions
CBR - Mack Chassis - Engine Brake Only Works With The Brake Pedal, No Function During Cruise. US07 And Newer Emissions, Model Year 2008 And Newer.
CBR 2488 072025
Service Bulletin/Repair Instructions
CBR - A significant GPS reporting issue is affecting fleet operations, with trucks maintaining back-office communication but failing to transmit GPS location data.
CBR 407 072025
Service Bulletin/Repair Instructions
CBR - To correct the MID136 SID 66 FMI 7 fault code the latest Bendix VCP file will need to downloaded.
CBR 170-8 202505
Service Bulletin/Repair Instructions
Inactive Code P25AE00 Being Generated After A Hard Pull And A Momentary Drop In Engine Oil Pressure (Low Oil Pressure) (Possible Related Codes - SPN4811 , SPN 100 , PID 100)
CBR 2464-1 202505
Service Bulletin/Repair Instructions
Mack Chassis - Rear Axle Overheat
CBR-407 202409
Service Bulletin/Repair Instructions
CBR: To correct the MID136 SID 66 FMI 7 fault code the latest Bendix VCP fi le will need to be downloaded.
CBR-2383 202406
Service Bulletin/Repair Instructions
CBR - Accelerator Pedal: Inspection Instructions
CBR-202 202402
Service Bulletin/Repair Instructions
CBR - Automated Manual Transmission ( AMT ) Flywheel Pilot Bearing Wear On Input Shaft.
CBR-2347 202402
Service Bulletin/Repair Instructions
CBR - Active "Set Park Brake" Message On Drivers Information Display (DID).
M-465-001 202311
Service Bulletin/Repair Instructions
TSB: Mack Trucks now offer an improved HD Inter-Axle Through Shaft for the CRD 125, 150, 180, and 200 family carriers. 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.
M-141-001 202308
Service Bulletin/Repair Instructions
TSB: Air Restriction Indicator
M728-005A 202308
Service Bulletin/Repair Instructions
TSB: Barksdale Leveling Valve, Leak Test
KC-614-Ver4
Service Bulletin/Repair Instructions
CBR: eWarranty To UCHP Labor Code ( SCC Code ) Crossover, Conversion Information For Use With Campaigns ( FI, PI ) And Recalls ( EC, SC ), Location On Trucks Dealer Portal ( TDP )
KC-474-Ver5
Service Bulletin/Repair Instructions
CBR: Diagnostic Trouble Code (DTC) P215A-64, Fault Code SPN 84 FMI 19
M-170-001
Service Bulletin/Repair Instructions
TSB: Stock Vehicle Storage and Maintenance
M-170-002
Service Bulletin/Repair Instructions
TSB: New Vehicle Safety Certification Requirements for Vehicles, U.S. and Canada
M-170-003
Service Bulletin/Repair Instructions
TSB: Vibration Diagnostics
S7627
Service Bulletin/Repair Instructions
Mack MMD Alternator Pulley
KC-2248
Service Bulletin/Repair Instructions
Flywheel Housing Thread Repair
KC-395
Service Bulletin/Repair Instructions
Instrument Cluster Programming - Programming Fails Or Errors Display When Replacing An Instrument Cluster With A Newer Part Number (Conversion Kit) - US04 To US10 Chassis (9-Pin Diagnostic Connector)
M-265-002
Service Bulletin/Repair Instructions
TSB-Charge Air Cooler t-clamp install.
M-728-001
Service Bulletin/Repair Instructions
2008 Document reformatted to be published as a TSB in Impact. Air suspension ride height.
M-411-001
Service Bulletin/Repair Instructions
2008 Document reformatted to be published as a TSB in Impact. Two-Piece clutch brake.
M-874-002
Service Bulletin/Repair Instructions
2008 Document reformatted to be published as a TSB in Impact. HVAC fine particulate filter.
M-222-001
Service Bulletin/Repair Instructions
2008 Document reformatted to be published as a TSB in Impact. Loose oil filter spud.
M-252-002
Service Bulletin/Repair Instructions
2008 Document reformatted to be published as a TSB in Impact. DPF outlet pipe heat shield.
M-260-001
Service Bulletin/Repair Instructions
2008 Document reformatted to be published as a TSB in Impact. Cooling system connections.
M-374-001
Service Bulletin/Repair Instructions
2008 Document reformated to be published as a TSB in Impact. Revised battery ti battery cable
M-801-001
Service Bulletin/Repair Instructions
2008 Document reformatted to be published as a TSB in Impact. Paint protection.
M-846-004
Service Bulletin/Repair Instructions
2008 Document reformatted to be published as a TSB in Impact. Fender mounted mirror washer kit.
M-255-016
Service Bulletin/Repair Instructions
2009 Document reformatted to be published as a TSB in Impact. Turbo Actuator Connector Repair.
M-372-001
Service Bulletin/Repair Instructions
2009 Document reformatted to be published as a TSB in Impact. Daytime Running Lamp (DRL) Relay Block
M-451-001
Service Bulletin/Repair Instructions
2007 Document reformatted to be published as a TSB in Impact. Updated Crossmember for improved clearance.
M-451-002
Service Bulletin/Repair Instructions
2009 Document reformatted to be published as a TSB in Impact. Axle Carrier Pinion Angles
M-561-002
Service Bulletin/Repair Instructions
2009 Document reformatted to be published as a TSB in Impact. New Air Dryer
M-711-001
Service Bulletin/Repair Instructions
2008 Document reformatted to be published as a TSB in Impact. Rear Suspension Repair.
M-711-002
Service Bulletin/Repair Instructions
2008 Document reformated to be published as a TSB in Impact. Frame reinforcement plate.
M-258-001
Service Bulletin/Repair Instructions
2008 document reformated to be published as a TSB in Impact. All CXU, CHU, GU, MRU's built with Volvo Engines and 07 Emissions. Cleaning Aftertreatment Fuel Injectors.
KC-750
Service Bulletin/Repair Instructions
US10 Emission Engines - Diagnostic Trouble Code ( DTC ) SPN 1231 FMI 9 Troubleshooting.
KC-745
Service Bulletin/Repair Instructions
Automated Manual Transmission ( AMT ) I-Shift / mDRIVE - Ribbon Harness Replacement - Speed Sensor Bolts, Possible Fault Codes P1058 - 21 Or MID 130 PID 161 FMI 1
KC-2112
Service Bulletin/Repair Instructions
Programming Failure - Chassis With Cummins Engine And An Allison Transmission
KC-2143
Service Bulletin/Repair Instructions
(Back Office) - Cruise Control Inoperative After Updating Software VECU5 Without ESP Package (UESP).
KC-405
Service Bulletin/Repair Instructions
Warranty Automated Manual Transmission ( AMT, I-Shift, mDrive ) Control Housing Assembly; Guidelines For Filing A Claim For Chassis Return Visit With Transmission Issues After A Repair Requiring Control Housing Removal And Reinstallation - US07 And N.
KC-735
Service Bulletin/Repair Instructions
Premium Tech Tool (PTT) - Message For Data Mismatch, Product Configuration Mismatch; Instruction To Run An Accessory Kit Displayed When Attempting To Run Diagnostics For Diagnostic Trouble Codes (DTC) Or Programming - US10+OBD13 And Newer Emissions,
KC-2116
Service Bulletin/Repair Instructions
NOx Sensor Troubleshooting Guide - US10+OBD13 And Newer Emissions
KC-2131
Service Bulletin/Repair Instructions
USE FOR NEW VEHICLES (US21+OBD22 Emissions) - Intermittent Diagnostic Trouble Codes U02A3, U029D, U029E
KC-2158
Service Bulletin/Repair Instructions
Selective Catalytic Reduction (SCR) Muffler Troubleshooting Guide - US10+OBD13 And Newer Emissions
KC-2165
Service Bulletin/Repair Instructions
DEF Pump Troubleshooting Guide - US10+OBD13 And Newer Emissions
KC-2171
Service Bulletin/Repair Instructions
Temperature Sensor Troubleshooting Guide - US10+OBD13 And Newer
KC-714
Service Bulletin/Repair Instructions
Mack Chassis - Diagnostic Trouble Codes ( DTC's ) - P020113, P020213, P020313, P020413, P020513, P020613, Cylinders 1 Through 6 Injector A Open Circuit
KC-698
Service Bulletin/Repair Instructions
Mack Chassis - Diesel Exhaust Fluid ( DEF ) System Cleaning/Flush After DEF Pump Failure Or System Contamination
KC-699
Service Bulletin/Repair Instructions
Mack Chassis - Bendix Vendor Configuration Program ( VCP ) Software Download Information
KC-686
Service Bulletin/Repair Instructions
(Back Office Only) Mack Chassis - Cruise Control Inoperative After Disabling The Electronic Stability Program (ESP)
KC-663
Service Bulletin/Repair Instructions
Emcon (Spark Assist) Engine Aftertreatment System Troubleshooting Check Sheet - US07 Emissions
KC-644
Service Bulletin/Repair Instructions
Manual Compression Test Adapter For Engines With Stainless Steel Injector Sleeves (Conical Tip Injectors) - US07 And Newer Emissions, Model Year 2008 And Newer
KC-646
Service Bulletin/Repair Instructions
Mack Chassis - Equipped With An Automated Manual Transmission (AMT-D, mDrive) - Unable To Program Transmission Electronic Control Unit (TECU) That Comes With A Reman Transmission; Information For Programming TECUs For Different Emissions Levels - FSB
KC-648
Service Bulletin/Repair Instructions
Mack - PTO Pump Speed Calculator
KC-653
Service Bulletin/Repair Instructions
Low Oil Pressure Diagnostic Process For 11 Liter Engines
KC-2169
Service Bulletin/Repair Instructions
Low Voltage Disconnect (LVD), Function Description
KC-2170
Service Bulletin/Repair Instructions
Electronically Controlled Suspension (ECS) Losing Air Pressure
KC-2172
Service Bulletin/Repair Instructions
No Start Condition After Over The Air Programing - VECU5 No Start "Safe State"
KC-2161
Service Bulletin/Repair Instructions
DEF Pump Cycling periodically Hours After Key Off
KC-633
Service Bulletin/Repair Instructions
Mack Chassis - Front Hub With Unit-Bearings ( Unitized Wheel Bearings ), Inspection Information And Guidelines - Commonly Model Year 2008 And Newer
KC-626
Service Bulletin/Repair Instructions
Mack Chassis - Vehicles Equipped With An Automated Manual Transmission Model F ( AMT-F, mDrive ), Premium Tech Tool ( PTT ) Gearbox Calibration Failure; Gearbox Calibration Operation Stops And Fails At 33% When Run With Transmission Removed
KC-627
Service Bulletin/Repair Instructions
Premium Tech Tool ( PTT ) Training Materials And Support Tools
KC-630
Service Bulletin/Repair Instructions
Sensor And Parameter Value Monitor - Template Parameter List For Pre-OBD (9-Pin Diagnostic Connector) Chassis In Premium Tech Tool ( PTT ); Regeneration And Road Test Sensor Monitor Parameters - US07 And US10 Emissions, Model Years 2008 To 2013
KC-916
Service Bulletin/Repair Instructions
Mack Chassis - Replacement / Upgrade Of The Programmable Global Audio ( GLAD ) Radio With A Non-programmable Radio
KC-593
Service Bulletin/Repair Instructions
V-MAC - ABS Malfunction Lamp On - ( Eaton ABS Active Code 17-10 / Arvin Meritor Wabco Active Code 7-4 )
KC-257
Service Bulletin/Repair Instructions
Volvo Chassis - FSB 237 - 020, Unit Injector Yoke Hold - Down Bolt Torque Specification
KC-529
Service Bulletin/Repair Instructions
System Date And Time, Information; Diagnostic Tool ( J-Pro, Premium Tech Tool ( PTT ) ) Displays Incorrect Timestamp For Diagnostic Trouble Code ( DTC ) / Fault Code Occurrences, Possible Data Link Codes Present - US07 And Newer Emissions, Common Mod
KC-286
Service Bulletin/Repair Instructions
Mack Chassis - FSB 563-008 Plugs, Pressure Protection Manifold - New Brass Plugs For Noregon Pressure Protection Manifold (PPM)
KC-253
Service Bulletin/Repair Instructions
Mack Chassis - FSB 237 - 020, Unit Injector Yoke Hold - Down Bolt Torque Specification
KC-238
Service Bulletin/Repair Instructions
Mack Chassis - Where To Find The Body Builder Portal - Body Builder Manual ( BBM ) Information - US04 And Newer Emissions, Model Year 2008 And Newer
KC-145
Service Bulletin/Repair Instructions
Automated Manual Transmission (AMT) (Spigot Bearing) Input Shaft Repair Kit And Shim Kit, Part Number Information, Reference Guide - US07 And Newer Emissions, Model Year 2008 And Newer
KC-73
Service Bulletin/Repair Instructions
Mack Chassis - Disabling The Driver ID; Removing the Driver ID Prompt - US07 To US14+OBD16 Emissions, Model Years 2008 To 2017
KC-163
Service Bulletin/Repair Instructions
Diesel Fuel Information - Acceptable Biodiesel, Fuel Blend For Summer And Winter - US07 And Newer Emissions, Model Year 2008 And Newer
KC-124
Service Bulletin/Repair Instructions
Automated Manual Transmission Gearbox Will Not Shift To High Range After Gearbox Repair; MID 130 PSID 24 FMI 1, P1072-92 Unintentional Disengagement Of High Range - US07 And Newer Emissions, Model Year 2008 And Newer
KC-692
Service Bulletin/Repair Instructions
Lighting Control Module ( LCM ) Replacement - Refer To Technical Parts Information ( TPI ) 364 - 034 Control Unit
FSB 491-032
Service Bulletin/Repair Instructions
Transmission Oil Cooler Hose, Replacement
K91214678
Service Bulletin/Repair Instructions
Automated Manual Transmission (AMT) Faults - Diagnostic Trouble Codes (DTC) P1052-18 Or MID 130 PID 33 FMI 5 Intermittent Fault In Cold Weather - US07 And Newer Emissions, Model Year 2008 And Newer
K72614548
Service Bulletin/Repair Instructions
Diagnostic Trouble Code ( DTC ) P02FA Illuminating The Malfunction Indicator Lamp (MIL) - US17 (GHG17, Common Rail Fuel System) Chassis ONLY
K01050303
Service Bulletin/Repair Instructions
Diagnostic Trouble Code ( DTC ) P0471 Illuminating The Malfunction Indicator Lamp (MIL) - US17 (GHG17, Common Rail Fuel System) Chassis ONLY
K04342327
Service Bulletin/Repair Instructions
Diagnostic Trouble Code ( DTC ) P0420 Illuminating The Malfunction Indicator Lamp (MIL) - US17 (GHG17, Common Rail Fuel System) Chassis ONLY
K47547856
Service Bulletin/Repair Instructions
Particulate Matter ( PM ) Sensor Diagnostic Trouble Codes ( DTC ) Illuminating The Malfunction Indicator Lamp ( MIL ); 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
K14701433
Service Bulletin/Repair Instructions
Diagnostic Trouble Code ( DTC ) P009E - 73 - Fuel Pressure Relief Control Performance / Stuck Off - GHG17 ( US17 ) Chassis With Common Rail Fuel System, Updated to reflect GHG17 software release
K58557784
Service Bulletin/Repair Instructions
Fuel Injector Offset Learning Diagnostic Trouble Codes ( DTC ) / Fault Codes Logged In Engine Control Module ( EMS ); Possible Rough / Uneven Idle - OBD15 Chassis
FSB284064
Service Bulletin/Repair Instructions
ECM and ACM Reprogramming, OBD2015
K43056254
Service Bulletin/Repair Instructions
Mack Chassis - Aftertreatment Control Module ( ACM ) not visible in Premium Tech Tool ( PTT ).Added more checks and procedures
K82320750
Service Bulletin/Repair Instructions
Automated Manual Transmission ( AMT - F ) ( mDRIVE ) Clutch Valve Unit ( CVU ) Makes Intermittent Buzzing Noise With The Key On And Engine Off.Changed repair information to reflect new software available.
K95422063
Service Bulletin/Repair Instructions
Mack Chassis - Diagnostic Trouble Code ( DTC ) P2459 Lighting The Malfunction Indicator Lamp ( MIL ); Possible Frequent Regeneration Requests - OBD15 And Newer Chassis
K03179378
Service Bulletin/Repair Instructions
Service Only Regen Requested With No Warning. 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)
K45941512
Service Bulletin/Repair Instructions
Mack Chassis - Diagnostic Trouble Code ( DTC ) P0128, Diagnostic And Repair - US14+OBD13 (Commonly Year Model 2015) And Newer.Updated to reflect release of FSB284-064 (Above)
K86094641
Service Bulletin/Repair Instructions
Mack Chassis - Diagnostic Trouble Code ( DTC ) P226C Intermittently Lighting The Malfunction Indicator Lamp ( MIL ) - OBD15 And OBD16 Conventional Chassis.Updated to reflect release of FSB284-064 (Above)
K86412082
Service Bulletin/Repair Instructions
Engine Diagnostic Trouble Codes ( DTC's ) P24A0 And P249F Lighting The Malfunction Indicator Lamp ( MIL ) - OBD15 (Commonly Model Year 2016) And Newer.Updated to reflect release of FSB284-064 (Above)
K42708399
Service Bulletin/Repair Instructions
Diagnostic Trouble Code ( DTC ) P0422 Lighting The Malfunction Indicator Light ( MIL ) - OBD15 And OBD16 Chassis (Non-Common Rail).Updated to reflect release of FSB284-064 (Above)
K84412328
Service Bulletin/Repair Instructions
Diagnostic Trouble Code ( DTC ) P249C Intermittently Lighting The Malfunction Indicator Lamp ( MIL ) - OBD15 And OBD16, Model Year ( MY ) 2016 and 2017 Chassis.Updated to reflect release of FSB284-064 (Above)
K53510452
Service Bulletin/Repair Instructions
Expired - Refer to K93039325 - Mack Chassis - SNM16-032 DEF (Diesel Exhaust Fluid) Contamination In Diesel Fuel.New solution released with improved information
FSB 213-002
Service Bulletin/Repair Instructions
IN SOME INSTANCES THE EXHAUST ROCKER PISTON CAP SCREW MAY BECOME LOOSE AND BACK OUT CAUSING LOSS OF ENGINE COMPRESSION, OR A MECHANICAL INJECTOR DIAGNOSTIC TROUBLE CODE (DTC).
FSB 593-013
Service Bulletin/Repair Instructions
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.
FSB 593-013A
Service Bulletin/Repair Instructions
GRADE GRIPPER SOLENOID, REPLACEMENT. 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.
FSB 593 013
Service Bulletin/Repair Instructions
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. 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.
PI 0861
Service Bulletin/Repair Instructions
Clutch Pedal Micro Switch Replacement.
PI0861
Service Bulletin/Repair Instructions
SUMMARY TO BE PROVIDED ON A FUTURE DATE.
FSB 593-014
Service Bulletin/Repair Instructions
GRADE GRIPPER QUICK RELEASE VALVE, REPLACEMENT. 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.
593-014
Service Bulletin/Repair Instructions
MACK TRUCKS: 2008-2015: SLOW RELEASE OF TRAILER BRAKES, EQUIPPED WITH GRADE GRIPPER, CAUSES VARIOUS COMBINATIONS AND CERTAIN TRUCK OPTIONS. *LJ
593-014-01
Service Bulletin/Repair Instructions
MACK TRUCKS: GRADE GRIPPER REPLACEMENT FOR TRUCK MODELS; MACK, CHU, CXU AND GU FOR THE FOLLOWING YEARS 2008-2015. THE FOLLOWING TRUCKS MAY ALSO EXPERIENCE SLOW RELEASE OF THE BRAKES. *LJ
FSB 371-048
Service Bulletin/Repair Instructions
CAB HARNESS INSULATION, INSTALLATION. CAB WIRING HARNESS MAY EXPERIENCE CHAFING.
FSB593013
Service Bulletin/Repair Instructions
GRADE GRIPPER SOLENOID, REPLACEMENT. 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.
371-048
Service Bulletin/Repair Instructions
MACK TRUCKS: 2007-2014: INSULATION KIT IS RECOMMENDED TO PROTECT CHAFING OF THE CAB WIRING HARNESS IN THE COLUMN BRACKET. *LJ
FSB-234-018
Service Bulletin/Repair Instructions
MACK TRUCK: TO INCREASED PROTECTION AGAINST FUEL INJECTOR TIP EROSION, A NEW FUEL TANK VENTILATION FILTER WAS IMPLEMENTED, AND MOUNTS ON OUTSIDE OF FRAME RAIL, USING FUEL TANK J BRACKET HUCK FASTENERS. MODEL CHU, CXU, GU, TD. *PE
FSB-234-019
Service Bulletin/Repair Instructions
MACK TRUCK: MOUNTED OUTSIDE OF FRAME RAIL, IS NEW FUEL TANK VENTILATION FILTER MOUNTING SLEEVE, USING FUEL TANK J BRACKET HUCK FASTENERS AND TO INCREASE PROTECTION AGAINST FUEL INJECTOR TIP EROSION. MODEL CHU, CXU, GU, TD. *PE
FSB-593-013
Service Bulletin/Repair Instructions
MACK TRUCK: THE GRADE GRIPPER FEATURE, ON SOME TRUCKS, ARE PRONE TO HARSH ENVIRONMENTS WITH INTERNAL CONTAMINATION, CAUSED BY BUILD UP OF GRIME, SALT, ROAD DEBRIS AND OTHER CONTAMINANTS. MODEL CHU, CXU, GU, TD. *PE
FSB 722-002
Service Bulletin/Repair Instructions
INTERFERENCE BETWEEN THE BRAKE LINING AND THE SPRING CAP WAS DISCOVERED ON SOME MACK CHU, CXU, GU, TD, LEU, MRU TRUCKS EQUIPPED WITH 203 MM (8 IN) REAR DRUM BRAKES AND CAMELBACK REAR SUSPENSION.
FSB 371-047
Service Bulletin/Repair Instructions
POWER WIRES, REROUTING, CERTAIN MACK CHU, CXU, GU, AND TD TRUCK MODELS BUILT BETWEEN 01/01/07 AND 10/22/13, UTILIZES TWO (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.
FSB 284-048
Service Bulletin/Repair Instructions
SOME MACK VEHICLES WITH MP ENGINES BUILT BETWEEN JANUARY 2004 AND JANUARY 2013 MAY EXPERIENCE A MAIN OIL GALLERY PRESSURE SENSOR OR PISTON COOLING JET PRESSURE SENSOR FAILURE THAT LEADS TO OIL CONTAMINATION INTO THE ENGINE WIRE HARNESS.
FSB-284-048
Service Bulletin/Repair Instructions
MACK TRUCK: DUE TO OIL CONTAMINATION INTO ENGINE WIRE HARNESS, MAIN OIL GALLERY PRESSURE SENSOR OR PISTON COOLING JET 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
FSB 284-047
Service Bulletin/Repair Instructions
SOME MACK VEHICLES BUILT BETWEEN 2004 AND OCTOBER 2013 EXPERIENCE AN OIL LEVEL SENSOR FAILURE THAT LEADS TO OIL CONTAMINATION INTO THE ENGINE WIRE HARNESS.
FSB-284-047
Service Bulletin/Repair Instructions
MACK: ON SOME TRUCKS, OIL CONTAMINATION INTO ENGINE WIRE HARNESS, MAY BE FROM OIL LEVEL SENSOR FAILURE AND AN ANTI WICKING PIGTAIL SPLICE KIT IS AVAILABLE. MODEL CHU, CXU, GU, LEU, MRU, TD. NO YEARS LISTED. *PE
FSB-831-002
Service Bulletin/Repair Instructions
MACK: THE DOOR STOP BRACKET WILL FAIL, ON SOME TRUCKS, DUE TO AN OVER EXTENSION OF DOOR, BUT A NEW DOOR DESIGN ASSEMBLY IS AVAILABLE. MODEL CHU, CXU, GU, TD. NO YEARS LISTED. *PE
PI-0827
Service Bulletin/Repair Instructions
MACK: INFORMATION PROCEDURE REGARDING THE INSPECTION AND REPLACEMENT OF TOP PLATE AND SPRING SEAT, DUE TO DEFECTIVE BUSHINGS OF TWIN Y AIR SUSPENSION, IF NEEDED. MODEL CHU, CXU. NO YEARS LISTED. *PE
FSB-364-036
Service Bulletin/Repair Instructions
MACK TRUCK: FLASHERS ARE TO BE REMOVED DUE TO DURABILITY ISSUES. *JS
FSB-413-001
Service Bulletin/Repair Instructions
MACK TRUCKS: THE AIR ASSISTED CLUTCH CABLE ON SOME VEHICLES MAY FRAY AT THE CLEVIS. *JS
FSB-873-015
Service Bulletin/Repair Instructions
MACK TRUCKS:DUE TO EXCESSIVE MOISTURE IN THE CLIMATE UNIT, SOME VEHICLES MAY DEVELOP A BLOWER MOTOR FAILURE. *JS
PI-0812
Service Bulletin/Repair Instructions
MACK TRUCKS: REAR SUSPENSION ADJUSTMENT WASHERS. REPLACEMENT OF THE SUSPENSION ADJUSTMENT WASHERS IS REQUIRED. *JS
PI-0815
Service Bulletin/Repair Instructions
MACK TRUCKS: REAR SUSPENSION HARDWARE TORQUE. BOLTS ARE LOOSE OR INCORRECTLY TORQUED ON THE PRIMAAX SUSPENSION. *JS UPDATED 07/18/2013 *JS
FSB 381-045
Service Bulletin/Repair Instructions
INSTRUMENT CLUSTER REPROGRAMMING, VEHICLE BUILT FROM JAN. 1, 2007 TO SEPT. 3, 2012, MAY EXPERIENCE AN INCREASE OF PARASITIC BATTERY DRAIN WITH KEY OFF.
FSB-255-024-03
Service Bulletin/Repair Instructions
MACK: AN UNRELIABLE SIGNAL TO ENGINE VGT ACTUATOR FROM ENGINE VARIABLE GEOMETRY TURBOCHARGER (VGT) ACTUATOR HARNESS THAT HAS SEVERE FRETTING DAMAGE, THE CONNECTOR PIN AND SOCKET CONTACTS SHOULD BE REPLACED. *PE UPDATED 9/17/12. *PE
PI-0796
Service Bulletin/Repair Instructions
MACK TRUCK: INFORMATION PROVIDED REGARDING MODIFICATION OF EGR VALVE ON ENGINES AND REMOVAL OF POPPET SHAFT END CAP O RINGS. MODELS CHU, CXU, GU, LEU, MRU. NO MODEL YEARS LISTED. *PE
FSB-293-007
Service Bulletin/Repair Instructions
MACK TRUCKS: EGR DIFFERENTIAL PRESSURE SENSOR PIN FRETTING. 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
FSB-372-011
Service Bulletin/Repair Instructions
MACK TRUCKS: FOUR WAY FLASHER ABS FAULT. 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
PI0775
Service Bulletin/Repair Instructions
MACK TRUCKS: THE BATTERY DISCONNECT SWITCH MAY HAVE BEEN BYPASSED ON SOME VEHICLES. THE RIGHT HAND POSITIVE CABLE MAY HAVE BEEN ROUTED DIRECTLY TO THE STARTER AND NOT TO THE BATTERY DISCONNECT SWITCH. *JS UPATED 08/08/2012 *JS
PI-0781
Service Bulletin/Repair Instructions
MACK: DUE TO FRETTING OF CONNECTOR PINS IN ENGINE VGT ACTUATOR CONNECTOR, A NEW MOUNTING ARRANGEMENT HAS BEEN DEVELOPED AND RELOCATION OF ENGINE VGT ACTUATOR CONNECTOR. MODELS CHU, CXU, GU, MRU, MP8. *PE UPDATED 7/31/12. *PE
FSB-234-014-1
Service Bulletin/Repair Instructions
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. MODELS CHU, CXU, GU, TD, MP7, MP8, MP10, US07, US10. MODEL YEARS 2008-2012. *PE
PI-0780
Service Bulletin/Repair Instructions
MACK: DURING EXTREME DOWNWARD ARTICULATION OF REAR AXLE, THE AIR SPRING MAY SEPARATE AT MOUNTING BELL. *PE
FSB-212-002
Service Bulletin/Repair Instructions
MACK TRUCKS: OIL SEEPAGE AT FLYWHEEL HOUSING. THIS PROBLEM HAS ALREADY BEEN SOLVED IN PRODUCTION, BUT THE PRODUCTION SOLUTION IS NOT COMPATIBLE WITH PREVIOUS GENERATION FLYWHEEL HOUSINGS. *JS
FSB-255-023
Service Bulletin/Repair Instructions
MACK TRUCKS: SEVERE FRETTING DAMAGE OF THE ENGINE VARIABLE GEOMETRY TURBOCHARGER ACTUATOR (ENGINE VGT ACTUATOR) HARNESS 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
FSB-652-004-1
Service Bulletin/Repair Instructions
MACK: TORQUE ROD REPLACEMENT ON FRONT REAR AXLE. *JS UPDATED 5/9/12. *PE
FSB-258-031
Service Bulletin/Repair Instructions
MACK: ON CERTAIN MACK VEHICLES BUILT BEFORE 2/13/2012, THE FRONT CHASSIS TO UREA TANK CONNECTION, LOCATED ON THE SIDE OF THE DEF TANK MAY RUB MOUNTING BRACKET OR NOT STAY SECURED. *JS
FSB-233-004
Service Bulletin/Repair Instructions
MACK TRUCK: THERE IS FUEL LEAKAGE AT TANDEM FUEL PUMP. 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
FSB-844-003
Service Bulletin/Repair Instructions
MACK TRUCK: PASSENGER DOOR PEEP WINDOW IS LOOSENING FROM DOOR. THIS MAY RESULT IN THE WINDOW BUTYL TAPE SOFTENING BECAUSE OF HIGH TEMPERATURES. *PE
FSB-491-029
Service Bulletin/Repair Instructions
MACK TRUCKS: THERE ARE CRACKS IN A STEEL OIL TUBE THAT CAN LEAD TO LEAKING. *RM UPDATED 2/21/12. *PE
SP-365-001
Service Bulletin/Repair Instructions
MACK: CLUTCH OPERATION ERROR PREVENTS STARTER ENGAGEMENT UNLESS PEDAL IS FULLY DEPRESSED. *RM
SP-386-013
Service Bulletin/Repair Instructions
MACK: THE FUEL LEVEL SENDER IS INCORRECTLY INSTALLED AND CAN CAUSE INCORRECT FUEL LEVEL READINGS IN THE INSTRUMENT PANEL. *RM UPDATED 9/27/2011. *PE
FSB-293-011
Service Bulletin/Repair Instructions
MACK TRUCKS: THERE ARE NEW EGR OUTLET HOSE CLAMPS. *RM
FSB-258-026
Service Bulletin/Repair Instructions
MACK TRUCKS: THE LOCATION OF THE NITROUS OXYDE SENSOR AND PIPING AROUND IT HAS BEEN CHANGED TO PROTECT IT FROM MOISTURE DAMAGE IF WATER ENTERS THE EXHAUST. *RM
SP-284-030
Service Bulletin/Repair Instructions
MACK TRUCKS: THERE ARE ENGINE ECM SOFTWARE UPDATES. *RM
SP-372-010
Service Bulletin/Repair Instructions
MACK TRUCKS: THE FUSE IDENTIFICATION DECAL IS BEING CORRECTED. *RM
SP-430-001
Service Bulletin/Repair Instructions
MACK TRUCKS: THE TRANSMISSION SHIFT INSTRUCTION LABEL HAS BEEN UPDATED. *RM
SP-252-001
Service Bulletin/Repair Instructions
MACK: PROCEDURE TO FIX THE AN INSULATION BLANKET IN THE EXHAUST SYSTEM THAT CAN DETERIORATE OVER TIME. *RM UPDATED 9/12/11. *PE
SP-252-002
Service Bulletin/Repair Instructions
MACK: PROCEDURE TO FIX THE AN INSULATION BLANKET IN THE EXHAUST SYSTEM THAT CAN DETERIORATE OVER TIME. *RM UPDATED 9/12/11. *PE
SP-364-032
Service Bulletin/Repair Instructions
MACK TRUCKS: THE INSTRUMENT CLUSTER IS NOT DISPLAYING THE PROPER TRANSMISSION MESSAGE.*RM
FSB-370-001
Service Bulletin/Repair Instructions
MACK TRUCKS: THE DIAGNOSTIC CONNECTOR MAY BECOME LOOSE. INFORMATION ON REPLACEMENT OF THE DIAGNOSTIC RETAINER CLIP. *RM
FSB-922-003
Service Bulletin/Repair Instructions
MACK TRUCKS: SOME OF THE FIFTH WHEEL MOUNTING HARDWARE MAY BE CONTACTING THE HUCK BOLTS THAT ARE USED TO MOUNT THE FIFTH WHEEL MOUNTING BRACKETS TO THE FRAME. THERE IS A PROCEDURE TO ADDRESS THE ISSUE. *RM
SB-262-008
Service Bulletin/Repair Instructions
MACK TRUCKS: THERE IS A NEW THERMOSTAT SEAL AND COVER TO PREVENT COOLANT LEAKAGE. *RM
SP-284-028
Service Bulletin/Repair Instructions
MACK TRUCK: THERE IS A SOFTWARE UPDATE. *RM
FB-373-011
Service Bulletin/Repair Instructions
MACK: THE ANTI-LOCK BRAKE SYSTEM HARNESS IS RUBBING AGAINST THE CLUTCH PEDAL WHICH CAN CAUSE THE ELECTRONIC MALFUNCTION LIGHT TO COME ON. *RM
SP-284-027
Service Bulletin/Repair Instructions
MACK TRUCK: ENGINE ECM AND ACM SOFTWARE UPDATES. 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
PI-0695
Service Bulletin/Repair Instructions
MACK TRUCK: THE OIL SLINGER THREADS ON THE INPUT SHAFT OF THE TRANSMISSION WERE THREADED INCORRECTLY AND COULD CAUSE LEAKAGE IN THE AREA. *RM
SB-465-001
Service Bulletin/Repair Instructions
MACK TRUCKS: THERE ARE NEW REVISED TORQUE PROCEDURES TO PREVENT THE BULL GEAR MOUNTING SCREWS FROM LOOSENING. *RM
PI-0684
Service Bulletin/Repair Instructions
MACK: LOW NOX IDLE, DOES NOT FUNCTION WITH HAND THROTTLE. 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
Reading this report
Complaint counts are reports filed with NHTSA, not failure rates. A common model collects more of them than a rare one that breaks more often.