Technical Service Bulletins
Search 172,063 manufacturer communications covering 879 vehicle makes from 1955 to 2025.
Showing 2,701 bulletins for MACK
PI-0772
May 1, 2012
061200 ENGINE AND ENGINE COOLING:ENGINE:DIESEL
MACK: ON CERTAIN TRUCK CHASSIS, DUE TO A POTENTIAL CRACKING FROM THERMAL EXPANSION, THE AFTERTREATMENT DPF (DIESEL PARTICULATE FILTER) COMBUSTION MODULES ARE BEING REPLACED. MODELS LEU, MRU, MP7. MODEL YEAR 2010. *PE
PI-0780
May 1, 2012
022144 SUSPENSION:REAR:SPRINGS:LEAF SPRING ASSEMBLY:U-BOLT, LEAF SPRING TO AXLE
MACK: DURING EXTREME DOWNWARD ARTICULATION OF REAR AXLE, THE AIR SPRING MAY SEPARATE AT MOUNTING BELL. *PE
FSB-212-002
Apr 1, 2012
061000 ENGINE AND ENGINE COOLING:ENGINE
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
Apr 1, 2012
061000 ENGINE AND ENGINE COOLING:ENGINE
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 INCLUDE
PI0783
Apr 1, 2012
020000 SUSPENSION
MACK TRUCKS: FRAME FLANGE CONTACTING SUSPENSION CROSSMEMBER. CERTAIN MACK MODELS MAY HAVE CONTACT ISSUES BETWEEN THE FRAME RAILS AND CROSS MEMBER. THIS CONTACT CAN CAUSE A SIDE LOADING CONDITION TO THE FRAME. *JS
FSB-258-032
Mar 1, 2012
071110 FUEL SYSTEM, GASOLINE:STORAGE:TANK ASSEMBLY:FILLER PIPE AND CAP
MACK: THE AFTERTREATMENT DIESEL EXHAUST FLUID (DEF) TANK FILLER NECK IS BEING REPLACED WITH AN IMPROVED FILLER NECK . *PE UPDATED 5/11/12. *PE
FSB-652-004-1
Mar 1, 2012
022520 SUSPENSION:REAR:AXLE:NON-POWERED AXLE ASSEMBLY
MACK: TORQUE ROD REPLACEMENT ON FRONT REAR AXLE. *JS UPDATED 5/9/12. *PE
FSB 258-013
Feb 1, 2012
357100 EQUIPMENT:APPLIANCE:AIR CONDITIONER
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 313-001
Feb 1, 2012
111000 ELECTRICAL SYSTEM:12V/24V/48V BATTERY
MACK: BATTERY TERMINAL CORROSION. ON CERTAIN CXU MODELS EQUIPPED WITH THE THREE BATTERY BOX DESIGN, THE BATTERY TERMINALS HAVE CORRODED DUE TO CONTAMINANTS SPLASHING DIRECTLY ONTO THE BATTERIES. *JS
PI0777
Feb 1, 2012
061000 ENGINE AND ENGINE COOLING:ENGINE
MACK: NEW SOFTWARE HAS BEEN RELEASED FOR MACK MP7 , MP8, AND MP10 EPA2010 EMISSIONS ENGINE CONTROL MODULES (ECM) TO PREVENT FLASH MEMORY LOCKUP. *JS
FSB-252-026
Jan 1, 2012
063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
MACK TRUCK: THE CURRENT EXHAUST PIPE IS REPLACED BY A TWO PIECE FLEX PIPE AND DIESEL PARTICULATE FILTER (DPF) INLET PIPE. LEU, MRU. NO MODEL YEAR LISTED. *PE
FSB-258-031
Jan 1, 2012
071120 FUEL SYSTEM, GASOLINE:STORAGE:TANK ASSEMBLY:MOUNTING
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-711-007
Jan 1, 2012
020000 SUSPENSION
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
PI-0776
Jan 1, 2012
061000 ENGINE AND ENGINE COOLING:ENGINE
MACK TRUCK: PROCEDURAL INFORMATION REGARDING THE REPLACEMENT OF THE DOUBLE IDLER GEAR ON CERTAIN EPA2010 TRUCK. *PE
EC-0013
Dec 1, 2011
063130 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:GAS RECIRCULATION VALVE (EGR VALVE)
MACK TRUCK: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. INFORMATION REGARDING RECALL ON TRUCKS EXPERIENCING LEAKAGE BETWEEN COOLANT AND EXHAUST GAS PATH FOR ENGINE EMISSIONS. *PE
FSB-258-028
Nov 1, 2011
061200 ENGINE AND ENGINE COOLING:ENGINE:DIESEL
MACK TRUCK: DUE TO THE LOW GROUND CLEARANCE, THE AFTERTREATMENT DIESEL EXHAUST FLUID (DEF) PUMP'S LOCATION MAY BECOME DAMAGED. *PE
FSB-258-029
Nov 1, 2011
061320 ENGINE AND ENGINE COOLING:ENGINE:OTHER FUEL TYPES:TURBO/SUPERCHARGER
MACK TRUCKS: SOFTWARE UPDATE INSTALLATION OF ENGINE TURBOCHARGER COMPRESSOR BYPASS VALVE KIT FOR THE ENGINE CONTROL MODULE (ECM). *PE
FSB-258-030
Nov 1, 2011
061200 ENGINE AND ENGINE COOLING:ENGINE:DIESEL
MACK TRUCK: BETWEEN AFTERTREATMENT HYDROCARBON DOSING MODULE INITIAL DESIGN AND BOSS ON MP8 ENGINE, AN INTERFERENCE WAS DISCOVERED. IT PREVENTS BRACKET AND AFTERTREATMENT HYDROCARBON DOSING MODULE FROM MOUNTING FLUSH TO SURFACE OF ENGIN
FSB-261-032
Nov 1, 2011
060000 ENGINE AND ENGINE COOLING
MACK TRUCK: EXPANSION TANKS MAY HAVE PERSISTENT COOLANT LEAKS THAT REQUIRES INSPECTION. EXAMINE EXPANSION TANK FOR BURN HOLE/MARK UNDER PRESSURE CAP THAT ENABLES HOT COOLANT TO ENTER EXPANSION AREA. MODELS CHU, CXU, GU AND TD. *PE
FSB-364-032
Nov 1, 2011
118000 ELECTRICAL SYSTEM:SOFTWARE
MACK TRUCK: TRUCKS WILL BE REPROGRAM WITH THE LATEST SOFTWARE VERSION OF VEHICLE ELECTRONIC CONTROL UNIT AFTER EXPERIENCING LOST OF DST2 AND THE CHASSIS ID. *PE
PI-0769
Nov 1, 2011
061200 ENGINE AND ENGINE COOLING:ENGINE:DIESEL
MACK TRUCK: UPDATING THE LATEST SOFTWARE FOR CERTAIN MACK MP7, MP8, AND MP10 ENGINE CONTROL MODULES (ECM) AND AFTERTREATMENT CONTROL MODULES (ACM).
PI-0770
Nov 1, 2011
061000 ENGINE AND ENGINE COOLING:ENGINE
MACK TRUCK: THE LATEST SOFTWARE UPGRADE TO BE RECEIVED BY CERTAIN MACK MP7 ENGINE CONTROL MODULES (ECM) AND AFTERTREATMENT CONTROL MODULES (ACM). *PE
PI-0771
Nov 1, 2011
061000 ENGINE AND ENGINE COOLING:ENGINE
MACK TRUCK: THE ENGINE CONTROL MODULES (ECM) AFTERTREATMENT CONTROL MODULES (ACM) AND INSTRUMENT CLUSTERS RECEIVED THE LATEST SOFTWARE UPGRADES FOR CERTAIN MACK MP7, MP8, AND MP10. *PE
FSB-233-004
Oct 1, 2011
015100 STEERING:HYDRAULIC POWER ASSIST:PUMP
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