CBR 2362-3 202604
Service Bulletin/Repair Instructions
CBR - Mack Carrier Nut Adhesive Change.
Vehicle report
2013 MACK CHU
Service bulletins
214 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 2246-5 032026
Service Bulletin/Repair Instructions
CBR - Z Spring Bracket Wear.
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-561 202503
Service Bulletin/Repair Instructions
If oil dilution is suspected refer to the applicable CBR solution below: ∙ CBR-659Mack Chassis - Oil Diluted With Fuel; Fuel In Oil, Diagnostic Information - All Emissions, All Model Years
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-343 202408
Service Bulletin/Repair Instructions
CBR: Mack chassis with an mDRIVE transmission, there have been reports of complete shift assemblies and TECUs being replaced due to technicians being unable to pinpoint the source of the air leak.
CBR-561 202408
Service Bulletin/Repair Instructions
CBR: 11L, 13L, And 16L Engine Oil Analysis Specifications - US10 And Newer Emissions
CBR-2350 202407
Service Bulletin/Repair Instructions
CBR: Telematics Gateway (TGW) Connect Ability Issues
CBR-2383 202406
Service Bulletin/Repair Instructions
CBR - Accelerator Pedal: Inspection Instructions
CBR-2350 202402
Service Bulletin/Repair Instructions
CBR -Telematics Gateway (TGW) Connect Ability Issues
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).
CBR-2333 202401
Service Bulletin/Repair Instructions
CBR: TGW Will Not Connect After SIM Card Replacement
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.
CBR-995 202310
Service Bulletin/Repair Instructions
CBR: Telematics Gateway ( TGW, MID 142 ) Losing Communication With The Instrument Cluster ( IC ) - Counts Of Fault Code (FC) MID 140 PSID 239 FMI 12 Data Link, MID 142 Faulty Device or Component Logging, Possibly Following Engine Start.
M-258-014 202309
Service Bulletin/Repair Instructions
TSB: Aftertreatment Diesel Exhaust Fluid (DEF) Tank, Level Sensor, Replacement
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
SLM23-005
Service Bulletin/Repair Instructions
Service Literature Published and Released in May, 2023
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
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-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-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.
KC-750
Service Bulletin/Repair Instructions
US10 Emission Engines - Diagnostic Trouble Code ( DTC ) SPN 1231 FMI 9 Troubleshooting.
KC-751
Service Bulletin/Repair Instructions
Vehicles Equipped With An Automated Manual Transmission Model D or F ( AMT-D, AMT-F ) - Transmission Oil Leakage From Transmission Input Shaft Seal Or Output Shaft Seal - US10 And Newer Emissions, Common Model Years 2010 And Newer.
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-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-731
Service Bulletin/Repair Instructions
Mack Chassis - Equipped With An Automated Manual Transmission Model D or F (mDrive, AMT-D, AMT-F) - Transmission Oil Leakage From Transmission Input Shaft Seal Or Output Shaft Seal - US10 And Newer Emissions, Common Model Years 2010 And Newer
KC-2131
Service Bulletin/Repair Instructions
USE FOR NEW VEHICLES (US21+OBD22 Emissions) - Intermittent Diagnostic Trouble Codes U02A3, U029D, U029E
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-652
Service Bulletin/Repair Instructions
Mack Low Oil Pressure Diagnostic Process For 11 Liter Engines
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-2157
Service Bulletin/Repair Instructions
Aftertreatment Hydrocarbon Injector (AHI) Troubleshooting Guide - US10+OBD13 And Newer Emissions
KC-552
Service Bulletin/Repair Instructions
Aftertreatment Control Module ( ACM ) Diagnostic Trouble Codes ( DTC ) U0001-88 and U0010-88 Lighting The Malfunction Indicator Lamp ( MIL ); Possible Derate Warning â US10 And Newer Chassis
KC-561
Service Bulletin/Repair Instructions
Engine Oil Analysis Specifications - US10 And Newer Emissions
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-538
Service Bulletin/Repair Instructions
Regen Fails to Start/Initiate Or Starts And Immediately Stops - US10 And US10+OBD13 Emissions
KC-492
Service Bulletin/Repair Instructions
Diagnostic Trouble Code (DTC) P04DB - Crankcase Ventilation Disconnected; US10+OBD13 To US14+OBD16 Emissions
KC-495
Service Bulletin/Repair Instructions
Intake Pre-heater Electrical Schematics (Diagrams) - US10+OBD13, US14+OBD13 To US14+OBD16 Emissions
KC-402
Service Bulletin/Repair Instructions
Volvo Chassis - Diagnostic Trouble Code (DTC) SA 0 FMI 0 or SPN 0 FMI 0 Present On Fault Code Readout - US10 And Newer Emissions, Model Year 2011 And Newer
KC-404
Service Bulletin/Repair Instructions
Volvo Chassis - Diesel Exhaust Fluid ( DEF ) Contamination In Fuel System, Inspection And Repair - US10 to US14 ( Non-Common Rail Fuel System )
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
GDC21-011
Service Bulletin/Repair Instructions
Exhaust Gas Temperature Sensor Circuit Range/Performance
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-119
Service Bulletin/Repair Instructions
Mack Chassis - Equipped With An Automated Manual Transmission (mDrive, AMT) AMT-C, AMT-D Or AMT-F - Transmission Oil Specifications - Model Years 2010 To 2020
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-136
Service Bulletin/Repair Instructions
Aftertreatment Control Module (ACM) Offline/Not Visible/Missing From Control Unit Information in Premium Tech Tool (PTT) - US10+OBD13 And Newer Emissions
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-115
Service Bulletin/Repair Instructions
Automated Manual Transmission ( AMT ) ( I-Shift, mDRIVE ) Equipped Chassis, OBD13 And Newer - Light Turbo Surge ( Chuff ) During Skip Shifting
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
K56735181
Service Bulletin/Repair Instructions
(Back Office) Mack Chassis - Grade Gripper Reactivates After Timeout With Brake Pedal Released - Vehicles Manufactured Prior To 2018
K17028411
Service Bulletin/Repair Instructions
Electronic Control Unit (ECU) Replacement (EMS, VECU, TECU, LCM) - Programming (Conversion Kit) Requirements When Installing An ECU With A Newer Part Number - US04 To US10 Chassis (9-Pin Diagnostic Connector)
K88992892
Service Bulletin/Repair Instructions
Assembled Camshaft - Injector Lobe Rotation Inspection For Possible Spun Camshaft Lobe; Diagnostic Trouble Codes (DTC) P0257-00, P2A17-00, Or P2A1F-00, Possible Lack Of Power - US17+OBD16 and Newer Emissions
K05234659
Service Bulletin/Repair Instructions
Mack Chassis - Vehicle with Diagnostic Trouble Code (DTC) P2002-00, Diagnostic Instructions - US10+OBD13 Emssions ONLY, Model Years 2013 (Rare), 2014
K21250579
Service Bulletin/Repair Instructions
Mack Chassis - Equipped With An Automated Manual Transmission Model D or F ( mDrive, AMT-D, AMT-F ) - Transmission Oil Leakage From Transmission Input Shaft Seal Or Output Shaft Seal - US10 And Newer Emissions, Common Model Years 2010 And Newer
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
FSB237-020
Service Bulletin/Repair Instructions
Unit Injector Yoke Hold-Down Bolt Torque Specification
FSB373-024
Service Bulletin/Repair Instructions
Some Mack trucks equipped with mDrive transmissions built between September 6, 2010 and August 14, 2017 may have PTO solenoid bracket or transmission harness connector failures due to excessive vibration.
FSB 237-020rev
Service Bulletin/Repair Instructions
MACK CHU, CXU, GR, GU, and PI trucks built from 2009 to 2017 and equipped with MP7, MP8, and MP10 engines (EM-USA10, EM-USA14, and EM-USA17), will require a new torque specification for the Unit Injector Yoke Hold-Down Bolt. Effective immediately, the torque value in step 4 has changed to 25 +5/-0 Nm (18 +4/-0 ft-lb).
EC0017
Service Bulletin/Repair Instructions
MACK Trucks has determined that certain 2013 through 2015 year model CHU, CXU, GU and MRU trucks equipped with a MP8 model engine may be equipped with an improperly functioning on-board emission-related diagnostic system.
FSB 237-020
Service Bulletin/Repair Instructions
MACK CHU, CXU, GR, GU, and PI trucks built from 2009 to 2017 and equipped with MP7, MP8, and MP10 engines (EM-USA10, EM-USA14, and EM-USA17), will require a new torque specification for the Unit Injector Yoke Hold-Down Bolt.
FSB 728-003
Service Bulletin/Repair Instructions
Some MACK CXU612/CHU612 trucks built from October 4, 2010 to February 6, 2017 with single rear axle Hendrickson air suspension (RAD-A2H) and short tapered frame rail (RFL830, RF-TAP28/RF-TA28T) could have the level arm rise above the frame rail when suspension is lowered completely.
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 371-045
Service Bulletin/Repair Instructions
CERTAIN VEHICLES BUILT FROM JANUARY 1, 2010 TO JUNE 14, 2013 WITH A MP7 ENGINE MAY EXPERIENCE CRACKING OR BREAKING OF THE 90 DEGREE POSITIVE BATTERY CABLE LUG AT THE STARTER SOLENOID STUD.
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.
SC0403
Service Bulletin/Repair Instructions
INTERAXLE YOKE RETAINING NUT RECALL.
FSB873-020
Service Bulletin/Repair Instructions
HVAC FLANGE, INSTALLATION, CHU, CXU, GU, TD.
SC0399
Service Bulletin/Repair Instructions
MACK TRUCKS INC. HAS DETERMINED THE CAP NUT THAT RETAINS THE INTERAXLE DRIVESHAFT YOKE TO THE REAR AXLE INPUT SHAFT MAY BE SUBJECT TO PREMATURE LOOSENING ON CERTAIN CHU, CMH, CMM, CXU, GU, LEU, LR, MRU AND TD MODEL VEHICLES. THE POTENTIAL RISK IS THAT IF THE NUT COMES OFF, THE YOKE CAN SEPARATE FROM THE AXLE INPUT SHAFT AND CAUSE THE DRIVESHAFT TO DISCONNECT. IF THIS OCCURS, A DISCONNECTED DRIVESHAFT CAN DISABLE THE VEHICLE AND RESULT IN DEBRIS IN THE ROADWAY, WHICH INCREASES THE RISK OF A VEHICLE CRASH.
FSB 366 002
Service Bulletin/Repair Instructions
Certain MACK CHU, CXU, and GU trucks built between 11/11/2013 and 01/14/2015, equipped with front radar may experience loss of front object detection or erratic operation of cruise control functions. The terminal seals of the harness is allowing moisture and corrosion to build up in the front radar harness. To ensure proper operation of the front radar, the harness is inspected for the proper seal and/or corrosion. If the harness or seal fail inspection, replacement of the harness is required. Follow the inspection and repair procedures outlined in this document.
P10859
Service Bulletin/Repair Instructions
Certain MACK CHU, CXU, and GU trucks built between 11/11/2013 and 01/14/2015, equipped with front radar may experience loss of front object detection or erratic operation of cruise control functions. The terminal seals of the harness is allowing moisture and corrosion to build up in the front radar harness. To ensure proper operation of the front radar, the harness is inspected for the proper seal and/or corrosion. If the harness or seal fail inspection, replacement of the harness is required. Follow the inspection and repair procedures outlined in this document.
PI 0859-04
Service Bulletin/Repair Instructions
Certain MACK CHU, CXU, and GU trucks built between 11/11/2013 and 01/14/2015, equipped with front radar may experience loss of front object detection or erratic operation of cruise control functions. The terminal seals of the harness is allowing moisture and corrosion to build up in the front radar harness. To ensure proper operation of the front radar, the harness is inspected for the proper seal and/or corrosion. If the harness or seal fail inspection, replacement of the harness is required. Follow the inspection and repair procedures outlined in this document.
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 0859-03
Service Bulletin/Repair Instructions
Certain MACK CHU, CXU, and GU trucks built between 11/11/2013 and 01/14/2015, equipped with front radar may experience loss of front object detection or erratic operation of cruise control functions. The terminal seals of the harness is allowing moisture and corrosion to build up in the front radar harness. To ensure proper operation of the front radar, the harness is inspected for the proper seal and/or corrosion. If the harness or seal fail inspection, replacement of the harness is required. Follow the inspection and repair procedures outlined in this document.
PI 0862
Service Bulletin/Repair Instructions
V-STAY ROD COVER, REPLACEMENT. SOME MACK CHU, CXU, GU, TD, LEU, MRU, AND LR TRUCKS BUILT FROM 03/19/2012 TO 08/30/2015 AND EQUIPPED WITH MRIDE SUSPENSIONS MAY INADVERTENTLY LOSE THE V-STAY ROD COVER (PART NUMBER 21896762) FROM THE V-STAY ROD. THE REPLACEMENT V-STAY ROD COVER WILL BE INSTALLED AND SECURED WITH A TACK WELD IN TWO PLACES (180 DEGREES APART).
FSB 722 005
Service Bulletin/Repair Instructions
Twin Y Suspension, Trailing Blade, Replacement. Some MACK CHU, CXU, CSM, and CMM trucks built 06/13/2013 through 09/25/2015 and equipped with Twin-Y suspension may require replacement of the Twin-Y trailing blades with a more robust design.
PI 0861
Service Bulletin/Repair Instructions
Clutch Pedal Micro Switch Replacement.
PI 0859
Service Bulletin/Repair Instructions
Front Radar, Failure. Certain MACK CHU, CXU, and GU trucks built between 11/11/2013 and 01/14/2015, equipped with front radar may experience loss of front object detection or erratic operation of cruise control functions. The terminal seals of the harness is allowing moisture and corrosion to build up in the front radar harness and/or radar antenna module.
PI0861
Service Bulletin/Repair Instructions
SUMMARY TO BE PROVIDED ON A FUTURE DATE.
PV729-PI0859
Service Bulletin/Repair Instructions
SUMMARY TO BE PROVIDED ON A FUTURE DATE.
FSB 217-004
Service Bulletin/Repair Instructions
OIL PAN SEALING RING, REPLACEMENT. SOME MACK VEHICLES EQUIPPED WITH MP8 ENGINES BUILT SINCE JANUARY 2010 REPORT OIL LEAKING AT THE DRAIN PLUG INSERT IN THE 13L PLASTIC OIL PAN (PART NUMBER 21368390) DUE TO O-RING MATERIAL DEGRADATION. IF OIL PAN IS SHOWING EVIDENCE OF LEAKAGE, REPLACE ALL O-RINGS AND SEALING RINGS.
FSB-284-061
Service Bulletin/Repair Instructions
MACK TRUCK: SHOULD REPROGRAMMED ENGINE ECU AND AFTERTREATMENT CONTROL MODULE (ACM) DUE TO PREMIUM TECH TOOL EXPERIENCE AN ERROR CODE 38 FOR SCR OVERTEMP AND ENGINE ECU SOFTWARE NEEDS CHECKING FOR ANY TROUBLESHOOTING IS PERFORMED. MODEL 2013-15 CHU, CXU, GU, LEU, MRU, TD. *PE
FSB 513-001
Service Bulletin/Repair Instructions
BRAKE ELECTRONIC CONTROL UNIT (ECU), REPROGRAMMING (MID 136) CERTAIN MACK CHU, CXU, AND GU TRUCKS EQUIPPED WITH THE BASIC ESP PACKAGE (ZMX-A1X), AND BUILT BETWEEN JANUARY 1, 2010 AND NOVEMBER 9, 2014, MAY ACTIVATE AN MID 136 ANTI-LOCK BRAKE SYSTEM (ABS) SID 66 FMI 7 OR BENDIX DTC 20-8 CODE WITHOUT ANY COMPONENT FAILURES, MECHANICAL FAILURES, OR SYSTEM MIS-WIRES. THE MID 136 CODE IS DUE TO AN ABS ELECTRONIC CONTROL UNIT (ECU) THRESHOLD SETTING. FOLLOW THE BRAKE ECU (MID 136) REPAIR AND REPROGRAMMING STEPS OUTLINED IN THIS FIELD SERVICE BULLETIN (FSB).
293-027
Service Bulletin/Repair Instructions
EGR MASS FLOW RATE LOW. THIS BULLETIN IS RELEASED TO ADDRESS HIGH COUNTS OF DIAGNOSTIC TROUBLE CODE (DTC) SPN 2659 FMI 18 OR P0401 ONLY DURING NORMAL TO HIGH LOAD DRIVING CONDITIONS ON VEHICLES ASSEMBLED BETWEEN JANUARY 2010 AND DECEMBER 2013. IT HAS BEEN DETERMINED THAT DEPOSITS IN THE EGR COOLER CAN BUILD UP AND CAUSE HIGH RESTRICTION OVER TIME. THIS HIGH RESTRICTION PREVENTS THE REQUIRED AMOUNT OF EGR GAS FROM FLOWING THROUGH THE EGR COOLER CREATING DTC SPN 2659 FMI 18 OR P0401 EGR MASS FLOW RATE LOW TO BE LOGGED INTERMITTENTLY. NORMALLY, THIS IS ONLY REPORTED ON HIGHER MILEAGE VEHICLES.
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.
371-040
Service Bulletin/Repair Instructions
MACK TRUCKS: 2013-2014 SIGNS OF CORROSION ARE SHOWING FROM THE ANTI-LOCK BRAKE SYSTEM SENSOR CONNECTOR WHICH NEEDS REPLACEMENT. CORROSION OF THE SENSOR CAN CAUSE THE ENGINE TO DE-RATE. *LJ
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 386-007
Service Bulletin/Repair Instructions
VEHICLE SPEED SENSOR. ON CERTAIN MACK TRUCKS BUILT FROM 5/7/2012 TO 11/07/2014 WITH THE M-DRIVE TRANSMISSION, THE VEHICLE SPEED SENSOR (VSS) MAY FAIL INTERNALLY. THIS IS DUE TO A MANUFACTURING DEFECT OF THE SENSOR. THIS FAILURE MAY CAUSE FAULT CODES RELATED TO ROAD SPEED. THIS FAILURE CAN CAUSE MULTIPLE SPN 84 FMI 19 FAULTS, BOTH ACTIVE AND INACTIVE, TO OCCUR AND MAY CAUSE THE MIL LIGHT TO COME ON IN THE DASH.
284-055
Service Bulletin/Repair Instructions
MACK TRUCKS: 2013-2014 : SOFTWARE UPDATES AVAILABLE FOR ENGINE CONTROL MODULE & AFTERTREATMENT CONTROL MODULE. *LJ
386-007
Service Bulletin/Repair Instructions
MACK TRUCKS: 2012-2014: SENSOR DEFECT WHICH CAUSES VEHICLE SPEED SENSOR TO FAIL INTERNALLY. *LJ
FSB 364-037
Service Bulletin/Repair Instructions
VEHICLE ELECTRONIC CONTROL UNIT (VECU), REPROGRAMMING, 5TH WHEEL SLIDE.
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.
364-037
Service Bulletin/Repair Instructions
MACK TRUCKS: MODELS 2010-2014: THERE WILL BE NO WARNING LIGHT WHEN VECU GET SHORTED TO GND. WHICH WILL CAUSE SLIDING OF THE 5TH WHEEL WHEN NO SWITCH IS ACTIVATED. *LJ
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
386-846
Service Bulletin/Repair Instructions
MACK TRUCKS: 2013-2014 FUEL MANAGEMENT GAUGE, REPLACEMENT IS REQUIRED FOR THE FOLLOWING MODELS DUE TO FUEL GAUGE SENSOR NOT PROPERLY WORKING. *LJ
FSB-364-037
Service Bulletin/Repair Instructions
MACK: WHEN THE OUTPUT FROM THE VECU GETS SHORTED OUT TO GND, THERE IS NO WARNING AND CAUSES 5TH WHEEL TO SLIDE WITHOUT ACTIVATING 5TH WHEEL SLIDE SWITCH AND NEEDS TO BE REPROGRAM. MODEL 2010-2014 CHU, CXU, GU, TD. *PE
FSB 511-002
Service Bulletin/Repair Instructions
Brake Drum, Replacement (Steer Axle) Some MACK CHU, CXU, GU, and TD trucks built between 08/29/2011 and 06/30/2014, equipped with a MACK 14.6k steer axle, unitized hub, and 152 mm (6.0 in) wide Bendix brake shoes can show signs of brake shoe protrusion beyond the brake drum. This condition is resolved by installing new 152 mm (6.0 in) brake shoes, 178 mm (7.0 in) wide brake drums (20536276), new dust shields, and replace the existing Z-Brackets.
FSB 511-008
Service Bulletin/Repair Instructions
BRAKE DRUM, REPLACEMENT (STEER AXLE) SOME MACK CXU, CHU, GU, AND TD TRUCKS BUILT BETWEEN 08/29/2011 AND 06/30/2014, EQUIPPED WITH A MACK 14.6K STEER AXLE, UNITIZED HUB, AND 152 MM (6.0 IN) WIDE MERITOR BRAKE SHOES CAN SHOW SIGNS OF BRAKE SHOE PROTRUSION BEYOND THE BRAKE DRUM. THIS CONDITION IS RESOLVED BY INSTALLING NEW 152 MM (6.0 IN) BRAKE SHOES, NEW DUST SHIELDS, AND NEW 178 MM (7.0 IN) WIDE BRAKE DRUMS (20536276).
FSB 511-009
Service Bulletin/Repair Instructions
BRAKE DRUM, REPLACEMENT (STEER AXLE) SOME MACK CXU, CHU, GU, AND TD TRUCKS BUILT BETWEEN 08/29/2011 AND 06/30/2014, EQUIPPED WITH A MACK 14.6K STEER AXLE, UNITIZED HUB, AND 152 MM (6.0 IN) WIDE MERITOR BRAKE SHOES CAN SHOW SIGNS OF BRAKE SHOE PROTRUSION BEYOND THE BRAKE DRUM. THIS CONDITION IS RESOLVED BY INSTALLING NEW 152 MM (6.0 IN) BRAKE SHOES, NEW DUST SHIELDS, AND NEW 178 MM (7.0 IN) WIDE BRAKE DRUMS (20536276).
FSB 375-012
Service Bulletin/Repair Instructions
BATTERY PROTECTION SYSTEM (LVD) RELAY ON CERTAIN MACK TRUCKS BUILT FROM 01/01/2010 TO 06/13/2014 WITH THE LIFEGUARD BATTERY PROTECTION SYSTEM (LVD), THE LVD RELAY MAY NOT TURN THE LOADS BACK ON WHEN THE HIGH VOLTAGE THRESHOLD IS MET. THIS IS DUE TO AN ASSEMBLY ERROR AT THE SUPPLIER.
FSB-375-012
Service Bulletin/Repair Instructions
MACK: WHEN THRESHOLD OF HIGH VOLTAGE HAS BEEN MET, THE LIFEGUARD BATTERY PROTECTION SYSTEM (LVD) RELAY MAY NOT TURN LOADS BACK ON, DUE TO AN ASSEMBLY ERROR AT SUPPLIER. MODEL 2010-2014 CHU, CXU. *PE
FSB-511-002
Service Bulletin/Repair Instructions
MACK: THE PROTRUSION OF BRAKE SHOES BEYOND BRAKE DRUM IS BEING REPLACED WITH NEW 152MM (6.0 IN) BRAKES SHOES, 178 MM (7.,0 IN) WIDE BRAKE DRUMS ON SOME TRUCKS. MODEL 2011-2014 CHU, CXU, GU, TD. *PE
FSB-511-009
Service Bulletin/Repair Instructions
MACK: BRAKE SHOES PROTRUDES BEYOND BRAKE DRUM AND CAN BE RESOLVED BY INSTALLING BRAKE SHOES 152MM (6.0 IN) AND WIDE BRAKE DRUMS 18MM (7.0 IN). MODEL 2011-2014 CHU, CXU, GU, TD. *PE
PI 0836
Service Bulletin/Repair Instructions
CRD 150/151 CARRIER INSPECTION COVER, REPLACEMENT, A MANUFACTURING DEFECT HAS BEEN IDENTIFIED AFFECTING CARRIERS BUILT FROM DECEMBER 2012 THROUGH JANUARY 2013. THE ISSUE IS MOLDING FLASH THAT MAY BE EXTENDING INTO THE O-RING GROOVE AT THE 12 AND 6 O'CLOCK POSITIONS OF THE COMPOSITE SIDE COVER. THIS FLASH MAY CUT INTO THE O-RING AND CAUSE IT TO DISTORT AND RESULTING IN OIL LEAKAGE. IT IS RECOMMENDED THAT THE COVER BE REPLACED TO CORRECT THIS CONDITION.
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
PI-0849
Service Bulletin/Repair Instructions
MACK TRUCK: SOME TRUCKS HAD FRONT AXLE U-BOLT WEDGES INCORRECTLY INSTALLED AND IT CAUSES U-BOLTS TO BEND ON FRONT AXLE AND THE U-BOLTS AND NUTS NEED REPLACING. *PE
PI-0850
Service Bulletin/Repair Instructions
MACK TRUCK: DUE TO AN INCORRECT INSTALLATION OF FRONT AXLE U BOLT WEDGE, CAUSED THE U-BOLTS TO BEND WOULD NEED REPLACEMENT OF THE U-BOLTS AND NUTS. MODEL CHU. *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 371-046
Service Bulletin/Repair Instructions
FRAME RAIL GROUND STUD, ON CERTAIN MACK TRUCKS BUILT FROM 01/01/2010 TO 10/7/2013 THE MAIN GROUND STUD, LOCATED ON THE FRAME RAIL BEHIND THE BATTERY BOX, MAY HAVE BEEN IMPROPERLY TORQUED. THIS IMPROPER TORQUE MAY HAVE ALLOWED CORROSION INHIBITOR TO GET BETWEEN THE RING TERMINALS WHICH MAY CAUSE MULTIPLE FAULT CODES AND/OR INTERMITTENT ISSUES.
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-263-039-01
Service Bulletin/Repair Instructions
MACK TRUCKS: THE HDMS COOL LOGIC ENGINE COOLING FAN DRIVE IS LEAKING FLUID FROM REAR DRIVE AND HDMS FAN DRIVE WAS REDESIGNED, DUE TO LEAKAGE, TO IMPROVE SEALING AND OVERALL DURABILITY OF DRIVE. MODEL 2013 CHU, CXU, GU, TD. *PE
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
PI-0837
Service Bulletin/Repair Instructions
MACK TRUCKS: INFORMATION AVAILABLE REGARDING THE ENHANCEMENTS FOR ENGINE CONTROL MODULE (ECM) SOFTWARE UPDATES TO ADDRESS COLD START TIME DELAY, IMPROVED SOOT LEVEL AND PISTON COOLING JET (PCJ) DIAGNOSTIC FAULT. MODEL 2013 CHU, CXU, GU, LEU, MRU, TD. *PE
PI-0826
Service Bulletin/Repair Instructions
MACK: UPDATE SOFTWARE INFORMATION REGARDING ENHANCEMENTS FOR ENGINE CONTROL MODULE (ECM) AND AFTERTREATMENT CONTROL MODULE (ACM) ON VEHICLES WITH DIAGNOSTIC TROUBLE CODES (DTCS) P1086, P0420, P205B, P2002 AND LOW COOLANT TEMPERATURE AND LIGHT LOAD. MODEL 2013 CHU, CXU, GU, LEU, MRU, TD. *PE UPDATED 02/26/2014 *JS
PI-0831
Service Bulletin/Repair Instructions
MACK: DIAGNOSTIC TROUBLE CODES (DTCS), P1086, P0420, P205B, P202, LOW TEMPERATURE, WILL BE RESOLVED WITH SOFTWARE UPDATE ENHANCEMENTS FOR ENGINE CONTROL MODULE (ECM) AND AFTERTREATMENT CONTROL MODULE (ACM). MODEL 2013 CHU, CXU, GU, LEU, MRU, TD. *PE UPDATED 02/26/2014 *JS
FSB-271-002
Service Bulletin/Repair Instructions
MACK: DUE TO A SOFTWARE BUG, MULTIPLE COUNTS OF INACTIVE FAULTS WERE FOUND, AFFECTING THE ACCELERATOR PEDAL (STANDARD OR KICKDOWN PEDAL). MODELS 2013 CHU, CXU, GU, LEU, MRU, TD, CMH, CMM. *PE
FSB-413-003
Service Bulletin/Repair Instructions
MACK: ON SOME TRUCKS, MORE LEG AND KNEE ROOM WAS PROVIDED FOR OPERATOR COMFORT DUE TO AIR OPERATED CLUTCH ASSIST SYSTEM DESIGNED TO REDUCE CLUTCH PEDAL EFFORT BY 20% AND CLUTCH PEDAL TRAVEL BY 2' (50.8MM). MODEL CHU, CTP, CXP, CXU, GU. NO YEARS LISTED. *PE
FSB 373-019
Service Bulletin/Repair Instructions
ON SOME MACK MODELS BUILT WITH AN ALLISON TRANSMISSION, BETWEEN MAY 16, 2011 AND AUGUST 9, 2013, MAY EXPERIENCE MULTIPLE OPEN CIRCUITS IN THE 31 WAY TRANSMISSION CONNECTOR. THIS IS DUE TO A SUPPLIER MANUFACTURING ISSUE WITH THE CONNECTOR.
FSB-373-019
Service Bulletin/Repair Instructions
MACK: DUE TO SUPPLIER MANUFACTURING ISSUE WITH CONNECTOR, SOME TRUCKS MAY EXPERIENCE MULTIPLE OPEN CIRCUITS IN 31 WAY TRANSMISSION CONNECTOR AND WOULD TO BE INSPECTED AND IF NEEDED, REPAIRED AND REPLACED. MODEL 2011-2013 CHU, CXU, GU, TD. *PE
FSB-512-002
Service Bulletin/Repair Instructions
MACK: AIR DISC BRAKE EXPERIENCING THERMAL OVERLOAD CONDITION THAT OVER ADJUSTMENT OF NORMAL PAD WEAR COMPENSATION THAT MAINTAINS RUNNING CLEARANCE BETWEEN BRAKE PAD AND ROTOR AND REDUCES RUNNING CLEARANCE BELOW DESIRED LEVEL. MODEL CHU, CXU, GU, LEU, MRU, TD. NO YEARS LISTED. *PE
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-0833
Service Bulletin/Repair Instructions
MACK: TRUCKS WITHOUT HAND CONTROL VALVES, WERE BUILT WITH DOUBLE CHECK VALVE INSTALLED TO TRACTOR PROTECTION VALVE (TPV) AND DUE TO MISBUILD, DOUBLE CHECK VALVE NEEDS REMOVING FOR PROPER OPERATION OF BRAKE SYSTEM. MODEL 2013 CHU, CXU GU. *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 381-048
Service Bulletin/Repair Instructions
CERTAIN MACK TRUCKS BUILT BETWEEN JANUARY 1, 2010 AND DECEMBER 31, 2012, MAY EXPERIENCE A POPPING SOUND IN THE SPEAKERS WHEN THE KEY IS IN THE OFF POSITION.
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
FSB-364-035
Service Bulletin/Repair Instructions
MACK TRUCKS: NEW SWITCH MOUNTING BRACKET WAS DEVELOPED TO REPLACE EXISTING TURN SIGNAL SWITCH MOUNTING BRACKET, DUE TO CONTACT BETWEEN SWITCH FINGERS AND SLEEPING SHAFT, THAT CAUSED SWITCH OPERATION TO IMPROPERLY CANCELS ITSELF. MODEL CHU, CXU, GU, TD. *PE
FSB-813-001
Service Bulletin/Repair Instructions
MACK: INFORMATION PROVIDED ON CERTAIN TRUCKS IN REGARDS TO B PILLAR CRACKS FORMING AT UPPER EXHAUST MOUNTING AND A NEW DEVELOPMENT REINFORCEMENT THAT IMPROVES DURABILITY OF B PILLAR. MODELS CHU. NO MODELS YEARS LISTED. *PE
FSB-820-003
Service Bulletin/Repair Instructions
MACK TRUCK: THERE IS AN ISSUE OF SHORT LIFE OF THE HOOD SHOCKS ON SOME TRUCKS; A NEW PROTECTIVE BOOT FOR SHOCKS, HAS BEEN RELEASED AND BULLETIN INDICATES THE PROPER INSTALLATION FOR NEW SHOCKS. MODELS CHU. NO MODEL YEARS LISTED. *PE
FSB 364-031
Service Bulletin/Repair Instructions
TRIP RESET ERROR, VEHICLE ELECTRONIC CONTROL UNIT (VECU), REPROGRAMMING
FSB 392-003
Service Bulletin/Repair Instructions
RADIO REPLACEMENT, SOME MACK MODELS BUILT BETWEEN JUNE 28, 2010 TO FEBRUARY 10, 2012, MAY EXPERIENCE A LOCK UP OR FREEZE ISSUE WITH THE RADIO.
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 371-044
Service Bulletin/Repair Instructions
BATTERY CABLE MOUNTING CLAMPS, MAY EXPERIENCE THE BATTERY CABLE CLAMPS BREAKING OR CRACKING.
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.
PI-0799
Service Bulletin/Repair Instructions
MACK TRUCK: THE SUPPORT BRACKETS, USED WITH WIDE BASE WHEEL/TIRE COMBINATIONS EQUIPMENT, PROVIDE ADDITIONAL STRENGTH THAT IS REQUIRED WITH LONGER CAM TUBES, WERE NOT INSTALLED AT FACTORY, AND NEED TO BE REPLACED. MODELS CHU, CXU, GU. NO MODEL YEARS LISTED. *PE
FSB 364-034
Service Bulletin/Repair Instructions
ENGINE BRAKE REACTIVATION, ENGINE BRAKE MALFUNCTION
FSB-364-034
Service Bulletin/Repair Instructions
MACK TRUCK: WHILE DRIVING, AND FOOT BRAKE DEACTIVATES CRUISE CONTROL, ENGINE BRAKE FAILS TO FUNCTION PROPERLY UNTIL MANUALLY TURNED OFF AND THEN ON. MODELS CHU, CXU, GU, TD. NO MODELS YEARS LISTED. *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.