CBR 2573-1 202604
Service Bulletin/Repair Instructions
CBR - Mack Chassis - Through Shaft Bearing Retainer Breakage On Mack Carriers.
Vehicle report
2007 MACK MRU
Service bulletins
159 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 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-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-2139 202405
Service Bulletin/Repair Instructions
CBR: Vehicles built with an 11 liter engine may experience a complaint of excessive fuel in the oil. It is possible that the source of the fuel is the rear fuel galley plug in the cylinder head. A new and improved fuel galley plug has been developed to resolve this issue.
CBR-202 202402
Service Bulletin/Repair Instructions
CBR - Automated Manual Transmission ( AMT ) Flywheel Pilot Bearing Wear On Input Shaft.
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.
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-170-002
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-870-001
Service Bulletin/Repair Instructions
2007 document reformatted to be published as a TSB in Impact. Interference with ac line and Front engaging PTO.
M-214-003
Service Bulletin/Repair Instructions
2008 document reformated to be published as a TSB in Impact. Injector rocker arm service.
M-237-001
Service Bulletin/Repair Instructions
2008 document reformatted to be published as a TSB in Impact. Injector copper sleeves.
M-237-002
Service Bulletin/Repair Instructions
2008 document reformatted to be published as a TSB in Impact. Injector removal tool.
M-258-009
Service Bulletin/Repair Instructions
2008 document reformatted to be published as a TSB in Impact. Supplemental air valve fitting.
M-261-008
Service Bulletin/Repair Instructions
2007 document reformatted to be published as a TSB in Impact.Coolant level sensor.
M-431-001
Service Bulletin/Repair Instructions
2008 document reformatted to be published as a TSB in Impact. Synchronizer fastener change.
M-431-002
Service Bulletin/Repair Instructions
2008 document reformatted to be published as a TSB in Impact. T300 transmission synchronizers repair.
M-593-001
Service Bulletin/Repair Instructions
2008 document reformatted to be published as a TSB in Impact. ABS sensor mounting bracket.
M-214-001
Service Bulletin/Repair Instructions
2008 document reformated to be published as a TSB in Impact. Rocker Arm Upgrade to current configuration.
M-214-002
Service Bulletin/Repair Instructions
2008 document reformatted to be published as a TSB in Impact. Rocker Shaft Oil Transfer Tube Installation.
M-846-005
Service Bulletin/Repair Instructions
2008 document reformatted to be published as a TSB in Impact. Revised Mirror Mounting Arrangement.
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-258-000
Service Bulletin/Repair Instructions
2008 Document reformatted to be published as a TSB in Impact. Water entering the DPF.
M-375-002
Service Bulletin/Repair Instructions
2008 Document reformatted to be published as a TSB in Impact. Main cab harness pass-through.
M-823-002
Service Bulletin/Repair Instructions
2008 Document reformatted to be published as a TSB in Impact. Grille bar, replacment.
M-222-001
Service Bulletin/Repair Instructions
2008 Document reformatted to be published as a TSB in Impact. Loose oil filter spud.
M-258-011
Service Bulletin/Repair Instructions
2008 Document reformatted to be published as a TSB in Impact. Differential pressure sensor hose.
M-260-001
Service Bulletin/Repair Instructions
2008 Document reformatted to be published as a TSB in Impact. Cooling system connections.
M-371-003
Service Bulletin/Repair Instructions
2008 Document reformatted to be published as a TSB in Impact. Body builder harness.
M-374-001
Service Bulletin/Repair Instructions
2008 Document reformated to be published as a TSB in Impact. Revised battery ti battery cable
M-390-001
Service Bulletin/Repair Instructions
2008 Document reformatted to be published as a TSB in Impact. Electrical equipment panel label.
M-563-001
Service Bulletin/Repair Instructions
2008 Document reformated to be published as a TSB in Impact. Field repair for the treadle valve.
M-721-004
Service Bulletin/Repair Instructions
2008 Document reformatted to be published as a TSB in Impact. Chassis lean.
M-801-001
Service Bulletin/Repair Instructions
2008 Document reformatted to be published as a TSB in Impact. Paint protection.
M-851-001
Service Bulletin/Repair Instructions
2008 Document reformatted to be published as a TSB in Impact. Crack in cab at engine tunnel.
M-255-016
Service Bulletin/Repair Instructions
2009 Document reformatted to be published as a TSB in Impact. Turbo Actuator Connector Repair.
M-258-006
Service Bulletin/Repair Instructions
2009 Document reformatted to be published as a TSB in Impact. DRV Air Line Service Kit
M-263-003
Service Bulletin/Repair Instructions
2009 Document reformatted to be published as a TSB in Impact. Fan Drive Belt Replacement MP7 Engine
M-364-001
Service Bulletin/Repair Instructions
2009 Document reformatted to be published as a TSB in Impact. DPF Control "Smart Switch" Options
M-373-001
Service Bulletin/Repair Instructions
2009 Document reformatted to be published as a TSB in Impact. DPF Harness Routing
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-254-001
Service Bulletin/Repair Instructions
2008 document reformatted to be published as a TSB in Impact. All LEU & MRU Models with a MP7, a Non-Catalyzed DPF, and 07 Emissions. Design and function.
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-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-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-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
M-392-004B
Service Bulletin/Repair Instructions
Radio, Replacement (revised from FSB 392-004)
KC-525
Service Bulletin/Repair Instructions
US07 / US10 D13 Turbocharger Gasket - Low Power, Poor Regen Performance
KC-417
Service Bulletin/Repair Instructions
Mack Chassis - Air System Schematics For Models - MRU, LEU And ( LR ) Using The Same Schematic As the LEU
KC-323
Service Bulletin/Repair Instructions
Mack Chassis - Model MRU - Inner and Outer Door Panel Repair Procedure; Outer Door Surface Separating From The Inner Door Surface
KC-692
Service Bulletin/Repair Instructions
Lighting Control Module ( LCM ) Replacement - Refer To Technical Parts Information ( TPI ) 364 - 034 Control Unit
CBR-15
Service Bulletin/Repair Instructions
Diagnostic Trouble Codes (DTC) For The Engine Pre-Heat Relay: Supplementary Instructions
KC-471
Service Bulletin/Repair Instructions
Mack Chassis " Air Restriction Light On " In The Cluster.
FSB 386-011
Service Bulletin/Repair Instructions
Air Pressure Switch, Replacement
K25470463
Service Bulletin/Repair Instructions
Mack Chassis - Emcon (Spark Assist) Engine Aftertreatment System Troubleshooting Check Sheet - US07 Emissions
K44714632
Service Bulletin/Repair Instructions
Mack Chassis - TerraPro (MRU) And Low Entry (LEU) Models - Field Service Bulletin FSB 381-042, Warning Light Bar Replacement and Software Conversion Kit - US07, US10, US14+OBD13 To US14+OBD16 Emissions, Model Years 2008 To 2017
K70570342
Service Bulletin/Repair Instructions
Mack Chassis - Equipped With An Allison Transmission: Enable 6th Speed - All Emissions, All Model Years
K50350118
Service Bulletin/Repair Instructions
Mack Chassis - Discharge Recirculation Valve (DRV) - FSB 258-029 , Engine Turbocharger Compressor Bypass Valve Deletion Kit, Installation
K37146742
Service Bulletin/Repair Instructions
US07 / US10 D13 Turbocharger Gasket - Low Power, Poor Regen Performance
K73535241
Service Bulletin/Repair Instructions
Mack Chassis - SNM16-006 Telematics Gateway ( TGW ) Goes Offline Due To Vin Mismatch When Test Engine ECU Is Installed
K86900043
Service Bulletin/Repair Instructions
Exhaust Gas Recirculation (EGR) System - Fault Codes SPN 412 FMI 0,2,5; Diagnostic Trouble Codes (DTC) P040A, P040B, P1121 - Temperature Sensor Inspection
K65527708
Service Bulletin/Repair Instructions
Diagnostic Trouble Codes (DTC) P20EE And P103C, Diagnostic Procedure; REPLACES GUIDED DIAGNOSTICS IN PREMIUM TECH TOOL ( PTT ) - US17+OBD16 And Newer Chassis ONLY
K73535038
Service Bulletin/Repair Instructions
Mack Chassis - Equipped With A Cummins 9 Liter Engine - Serpentine Belt Excessively Worn Or Damaged; Fan Belt Shredding Or Fraying Repeatedly
K52535491
Service Bulletin/Repair Instructions
Diagnostic / Troubleshooting Procedures For EGR System Components; Diagnostic Trouble Codes (DTC) P0401-00, P0402-00, P04DD-00, P1121-00, P1121-98 Or SPN 2659 FMI 16, SPN 2659 FMI 18, SPN 412 FMI 0, SPN 412 FMI 15 - US10, US10+OBD13, US14+OBD*, US17+OBD* With A Variable Geometry Turbocharger (VGT)
K63323104
Service Bulletin/Repair Instructions
Mack Chassis - Vibration Questionnaire, Driveline Angle Worksheet And Rough Ride Check Sheet
FSB563-008
Service Bulletin/Repair Instructions
Plugs, Pressure Protection Manifold
K17039050
Service Bulletin/Repair Instructions
Bendix ACom® - EC80 ESP Controller; ABS And ATC Lights Illuminated, Fault Codes Present After Making Changes, Calibration Or Programming With Acom
K11065398
Service Bulletin/Repair Instructions
Mack Chassis - Crankcase Ventilation ( CCV ) Oil Leaks - FSB 257 - 004, FSB 257 - 006 - US14 And US15 Emissions
K14637412
Service Bulletin/Repair Instructions
Diagnostic Trouble Codes (DTC) P0194-00 - Fuel Rail Pressure Sensor, Circuit Erratic, Intermittent And/Or P016E-00 Closed Loop Fuel Pressure At Control Limit, Pressure Too High - US17+OBD16 (Common Rail Fuel System) Emissions And Newer; Model Year 2017 And Newer
K54101221
Service Bulletin/Repair Instructions
** Tech Tip ** TT - 001 - 2015 - How And When To Diagnose A P0402 Code
K73658294
Service Bulletin/Repair Instructions
Mack Chassis - Diagnostic Trouble Codes ( DTC's ) P24A0 And P249F Lighting The Malfunction Indicator Lamp ( MIL ) - US14+OBD15, US14+OBD16 (Common Model Years 2016 And 2017), US17+OBD16 And Newer ( Common Rail Fuel System, Model Year 2018)
K95422063
Service Bulletin/Repair Instructions
Mack Chassis - Diagnostic Trouble Code ( DTC ) P2459 Lighting The Malfunction Indicator Lamp ( MIL ); Possible Frequent Regeneration Requests - OBD15 And US14+OBD16 (Non-Common Rail) Chassis
K50433055
Service Bulletin/Repair Instructions
Mack Chassis - Diagnostic Trouble Code ( DTC ) P0471 Illuminating The Malfunction Indicator Lamp (MIL) - US17+OBD16 (GHG17, Common Rail Fuel System) Chassis ONLY
K18412228
Service Bulletin/Repair Instructions
Mack Chassis - 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; TGW Possibly Missing From Product Information In Premium Tech Tool ( PTT ) - OBD13 Through OBD16 Emissions With TGW1 Or TGW2
K16925952
Service Bulletin/Repair Instructions
** Tech Tip ** TT - 007 - 2015 - Diagnosing The Aftertreatment Control Module DTCs P202D, P208E, P20E8 - OBD13 (Commonly Model Year 2014); Newer Chassis AFTER Reviewing Other Solutions
K43056254
Service Bulletin/Repair Instructions
Mack Chassis - Aftertreatment Control Module ( ACM ) Offline / Not Visible / Missing From Control Unit Information in Premium Tech Tool ( PTT )
K42708399
Service Bulletin/Repair Instructions
Diagnostic Trouble Code ( DTC ) P0422 Lighting The Malfunction Indicator Light (MIL ) - OBD15 And US14+OBD16 (Non-Common Rail Fuel System) Chassis
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
K24483157
Service Bulletin/Repair Instructions
Diagnostic Trouble Codes ( DTC ) P208E And P103B Logging With Possible Derate ( SCR Inducement ) - OBD15, US14+OBD16 Emissions And Newer Rewrote test procedure for better clarity.
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
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)
K77864401
Service Bulletin/Repair Instructions
Mack Chassis - Diesel Exhaust Fluid ( DEF ) System Cleaning/Flush After A Pump Failure or System Contamination.Removed Tech Tip, Added correct operation ID
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
K84262037
Service Bulletin/Repair Instructions
Issues with the Charge Air System may result in the presence of oil in the Charge Air Cooler ( CAC ) or intake piping.
K75024255
Service Bulletin/Repair Instructions
During extended periods of idling, engine speed may increase for a short time without any external command to do so.
FSB465-003
Service Bulletin/Repair Instructions
Effective September 2016, a revised composite bevel gear compartment cover with steel threaded fill plug and face-mounted o-ring was implemented into production for MACK CRD202/203, CRD150/151 and CRD 125/126 carriers. The revised composite cover replaces the previous composite cover with the rubber fill plug.
FSB 221-010
Service Bulletin/Repair Instructions
Diagnostic Trouble Codes (DTCs), Low Oil Pressure, CXU, GU, LEU, MRU
FSB-252-029
Service Bulletin/Repair Instructions
MACK TRUCK: MUFFLER INLET PIPE WILL FALL OUT, AND A NEW MUFFLER INLET PIPE, TURBORCHARGER OUTLET PIPE, LENGTHENED EXHAUST FLEX PIPE WAS DESIGNED TO ADDRESS THIS CONDITION AND WORK TOGETHER TO REDUCE RIGIDITY. *PE
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-221-010
Service Bulletin/Repair Instructions
MACK TRUCKS: LOW OIL PRESSURE. STORED DTC SPN 100 FMI 1, DURING LONG HARD PULL CONDITIONS. *JS
FSB-221-009
Service Bulletin/Repair Instructions
MACK TRUCKS: HOSE, ENGINE OIL FILL TUBE. ENGINES BUILT BEFORE FEBRUARY 11, 2013 MAY EXHIBIT MINOR OIL SEEPAGE FROM THE ENGINE OIL FILLER TUBE HOSE OR DISPLAY STRESS CRACKS IN THE HOSE. *JS UPDATED 7/3/13. *PE
SP-218-002-01
Service Bulletin/Repair Instructions
MACK: INCORRECT HARDWARE ON FRONT ENGINE MOUNT. BOLTS ARE THE INCORRECT LENGTH AND OR GRADE FOR THE ENGINE. *KB
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
PI-0790
Service Bulletin/Repair Instructions
MACK TRUCK: INFORMATION REGARDING THE EXPANSION TANK COOLANT PIPE STATIC MAKING CONTACT WITH STARTER SOLENOID WIRE AND RUBBING THROUGH WIRE INSULATION. MODELS LEU AND MRU. *PE
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 258-013
Service Bulletin/Repair Instructions
MACK: COMBUSTION AIR VALVE AND PIPING ARRANGEMENT. ON THE LEU AND MRU MODEL VEHICLES IT HAS BEEN DETERMINED THAT THERE WAS INSUFFICIENT SUPPORT OF THE COMBUSTION AIR VALVE AND PIPING. *JS
FSB-711-007
Service Bulletin/Repair Instructions
MACK TRUCK: LOWER RIGHT SIDE FRAME BRACKET MAY EXPERIENCE CRACKING AND CAN BE DIRECTLY REPLACED WITH NEW DESIGNED CROSSMEMBER ASSEMBLY. LE, LEU, MR, MRU. NO MODEL YEAR LISTED. *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
FSB-293-011
Service Bulletin/Repair Instructions
MACK TRUCKS: THERE ARE NEW EGR OUTLET HOSE CLAMPS. *RM
SP-652-004
Service Bulletin/Repair Instructions
MACK TRUCK: TORQUE ROD RELOCATION FOR HN SUSPENSION. CERTAIN MODEL TRUCKS WITH HN SUSPENSION HAVE BEEN FOUND TO MAKE CONTACT WITH THE TORQUE ROD AT THE CARRIER ASSEMBLY BRACKET. *PE UPDATED 9/9/11. *PE
SB-258-025
Service Bulletin/Repair Instructions
MACK TRUCK: REPLACEMENT OF AFTERTREATMENT DIESEL EXHAUST FLUID (DEF) COOLANT HOSE REPLACEMENT. *PE
SP-284-030
Service Bulletin/Repair Instructions
MACK TRUCKS: THERE ARE ENGINE ECM SOFTWARE UPDATES. *RM
SP-373-014
Service Bulletin/Repair Instructions
MACK TRUCKS: CONNECTOR PLUGS FOR THE FUEL HEATER SOLENOID MAY BE MISSING. *RM
FSB-721-001
Service Bulletin/Repair Instructions
MACK TRUCKS: PROCEDURE TO REPLACE BOLTS ON THE FRONT SPRING BRACKET WHEN THEY BECOME LOOSE OR BROKEN. *RM
SB-460-010
Service Bulletin/Repair Instructions
MACK TRUCKS: THERE MAY BE ISSUES WITH BOLTS SUCH AS LOOSENING/ BREAKING AT THE TORQUE ROD ATTACHMENT. *RM
SP-254-006
Service Bulletin/Repair Instructions
MACK TRUCKS: INFORMATION ON THE REPLACEMENT OF THE AFTERTREATMENT ATOMIZATION MODULE. *RM
SP-258-022
Service Bulletin/Repair Instructions
MACK TRUCKS: INFORMATION ON THE ADJUSTMENT OF THE AFTERTREATMENT COMBUSTION AIR INLET ORIFICE. *RM
FSB-874-051
Service Bulletin/Repair Instructions
MACK TRUCK: A/C HOSE CONDENSATION REMEDIATION. THE LOW PRESSURE A/C HOSE USED ON THE OPTIONAL REDDOT ROOF MOUNTED AIR CONDITIONING UNIT MAY DRIP CONDENSATION ONTO THE ELECTRONICS AND OPERATOR CONTROLS MOUNTED ON THE ENGINE TUNNEL. MODELS LEU, MRU. NO MODEL YEARS LISTED. *PE
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
SB-517010
Service Bulletin/Repair Instructions
MACK TRUCK: HALDEX REAR SLACK ADJUSTERS REPLACEMENT. NO MODEL YEARS LISTED. *PE
SB-258-011
Service Bulletin/Repair Instructions
MACK TRUCK: AFTERTREATMENT DPF SPARK ASSISTED IGNITION SYSTEM ELECTRODE TEST PROCEDURE. AFFECTED MODELS LEU, MRU. NO MODEL YEARS LISTED. *PE
P-1662
Service Bulletin/Repair Instructions
MACK TRUCK: MODELS CXU, CHU, GU, MRU AND LEU CHASSIS. US07 MP7 ENGINE MANAGEMENT SYSTEM (EMS) SOFTWARE UPGRADE. THE REVISION INCLUDES A REDUCTION I N PEAK INJECTION PRESSURES TO IMPROVE LONGEVITY OF UNIT INJECTOR COMPONENTS. *PE UPDATED 9/28/09. *PE UPDATED 2/12/10. *PE
SB-22499
Service Bulletin/Repair Instructions
MACK TRUCK: THE TRANSMISSION OIL COOLER COOLANT SUPPLY PIPING ARRANGEMENT MAY PREVENT INSTALLATION OF A DRIVESHAFT TO AN ACCESSORY PUMP WITH THE TRANSMISSION MOUNTED PTO LOCATED IN THE 8 O'CLOCK POSITION. MODEL YEARS UNKNOWN. *PE
SB-234030
Service Bulletin/Repair Instructions
MACK TRUCK: AFTERTREATMENT FUEL INJECTOR (AFI) AIR PURGE SYSTEM, KIT INSTALLATION INSTRUCTIONS. A CONTINUOUS AIR PURGE SYSTEM WAS DEVELOPED AND IMPLEMENTED INTO PRODUCTION ON VEHICLES EQUIPPED WITH A CATALYZED DIESEL PARTICULATE FILTER (DPF). SYSTEM PROVIDES A CONSTANT STREAM OF AIR THROUGH THE NOZZLE TIP TO COMPLETELY PURGE ANY RESIDUAL FUEL FROM THE NOZZLE FOLLOWING A DPF REGENERATION. NO MODEL YEARS LISTED. *PE
SB-329-008
Service Bulletin/Repair Instructions
MACK TRUCKS: A REVISED COUPLING HOSE FOR THE ALLISON AUTOMATIC TRANSMISSION OIL COOLER SUPPLY PIPE TO THERMOSTAT HOUSING CONNECTION WAS IMPLEMENTED INTO PRODUCTION ON MRU AND LEU MODEL CHASSIS. MODEL YEARS UNKNOWN. *PE
SB-329008
Service Bulletin/Repair Instructions
MACK TRUCK: REVISED AUTOMATIC TRANSMISSION OIL COOLER SUPPLY PIPE COUPLING HOUSE. THE PIPE TO THERMOSTAT HOUSING CONNECTION WAS IMPLEMENTED INTO PRODUCTION ON CERTAIN MODEL CHASSISES. MODEL YEARS UNKNOWN. *PE
SB-724-011
Service Bulletin/Repair Instructions
MACK TRUCKS: ON CERTAIN MODEL CHASSIS, THE POSSIBILITY EXISTS FOR THE CAB ROOF HARNESS TO RUB AGAINST THE EDGE OF THE PASS THROUGH HOLE WHERE THE HARNESS TRANSITIONS DOWN THE B POST ON THE LEFT HAND SIDE OF THE CAB. *PE
SB-724011
Service Bulletin/Repair Instructions
MACK TRUCK: CAB ROOF HARNESS REPAIR AND PASS THROUGH HOLE MODIFICATION. ON CERTAIN TRUCK MODEL CHASSIS, THE POSSIBILITY EXISTS FOR THE CAB ROOF HARNESS TO RUB AGAINST THE EDGE OF THE PASS THROUGH HOLE WHERE THE HARNESS TRANSITIONS DOWN THE B POST ON THE LEFT HAND SIDE OF THE CAB. *PE
SB-724010
Service Bulletin/Repair Instructions
MACK TRUCK: ON CERTAIN TRUCK CHASSIS MANUFACTURED PRIOR TO MAY 30, 2008, THE POSSIBILITY EXISTS FOR THE MAIN CAB HARNESS TO RUB AGAINST THE CHARGE AIR COOLER IN THE LEFT HAND CORNER OF THE CAB. TO ELIMINATE THIS CONDITION AND PROVEN T HARNESS DAMAGE, A METAL PLATE (PART #82266743) AND RUBBER GASKET (PART #82267132) ARE AVAILABLE THROUGH THE MACK PARTS SYSTEM TO REPLACE THE EXISTING PLASTIC ENGINE TUNNEL PASS THROUGH ASSEMBLY. NO MODEL OR MODEL YEARS LISTED. *PE
SB-230002
Service Bulletin/Repair Instructions
MACK TRUCKS: SERVICE BRAKE SWITCH TEST FOR CRUISE CONTROL ACTIVATION. A CHANGE WAS MADE TO THE VEHICLE ELECTRONIC CONTROL UNIT (VECU) SOFTWARE WHICH AFFECTS CRUISE CONTROL. MODELS CXU, CHU, GU, TD, LEU, MRU. *PE
P-1650
Service Bulletin/Repair Instructions
MACK: MODEL MRU WITH MANUAL TRANSMISSION. COOLING SYSTEM SURGE TANK REPLACEMENT. *PE
P-1653
Service Bulletin/Repair Instructions
MACK TRUCK: COOLING SYSTEM SURGE TANK AND TRANSMISSION OIL COOLER SUPPLY PIPE, REPLACEMENT FOR MRU LEU MODELS WITH AUTOMATIC TRANSMISSION. *PE
P1659
Service Bulletin/Repair Instructions
MACK TRUCK: DIESEL PARTICULATE FILTER (DPF) ATOMIZATION MODULE REPLACEMENT. MODELS MRU AND LEU MANUFACTURED JANUARY 2, 2007 AND NOVEMBER 20, 2007. DOES NOT APPLY TO MACK TRUCKS AUSTRALIA. *PE UPDATED 9/15/08. *PE
SC-334
Service Bulletin/Repair Instructions
MACK TRUCK: IT HAS BEEN DETERMINED THAT THE 90 DEGREE SINGLE CHECK VALVE FITTING MANUFACTURED BY PARKER HANNIFIN CORP. WHICH IS USED IN THE SUPPLY PORT OF THE SPRING BRAKE MODULATING RELAY VALVE (BENDIX SR 7 VALVE) MAY HAVE A DEFECT WHEREBY THE VALVE BODY RETAINER MAY BECOME EXCESSIVELY WORN AND EVENTUALLY BREAK APART. MODELS CXU, CXP, CXN, CHU, CHN, GU, CTP, CT, CV, MRU, AND LEU. 1/1/04-11/3/05 AND 5/2/07-7/26/07. *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.