Technical Service Bulletins
Search 172,063 manufacturer communications covering 879 vehicle makes from 1955 to 2025.
Showing 2,701 bulletins for MACK
PI-679
Apr 3, 2009
073200 FUEL SYSTEM, GASOLINE:FUEL INJECTION SYSTEM:INJECTORS
MACK TRUCK: AFTERTREATMENT FUEL INJECTOR (AFI) AIR PURGE SYSTEM KIT INSTALLATION. CERTAIN MP10 ENGINE EQUIPPED CHASSIS DO NOT INCLUDE THE CONTINUOUS AIR PURGE SYSTEM FOR THE AFTERTREATMENT FUEL INJECTOR (AFI). MACK TRUCKS HAS AUTHORIZED
PI-680
Apr 3, 2009
118000 ELECTRICAL SYSTEM:SOFTWARE
MACK TRUCK: ENGINE MANAGEMENT SYSTEM (EMS) SOFTWARE UPGRADE. NO MODELS OR MODEL YEARS LISTED. *PE
SB-215035
Apr 3, 2009
061200 ENGINE AND ENGINE COOLING:ENGINE:DIESEL
MACK TRUCK: REVISED FAN HUB MOUNTING BOLT TORQUE. FOR THIS APPLICATION ONLY, THE FAN HUB MOUNTING STUD MATERIAL PROPERTIES AND LENGTH HAVE BEEN CHANGED. STUD MATERIAL IS NOW GRADE 10.8 (PREVIOUSLY WAS GRADE 8.8), AND THE STUD LENGTH HAS BEE
SB-535002
Apr 2, 2009
050000 PARKING BRAKE
MACK TRUCK: A CHANGE TO PARK BRAKE VALVE USED ON CHASSIS MODEL WAS MADE, WHEREBY PARKING BRAKES AUTOMATICALLY APPLY WHEN AIR SYSTEM PRESSURE DROP-PS 59 345-414KPA(50-60 PSI). THIS A CHANGE FROM PREVIOUS CHASSIS MANUFACTURED PRIOR TO FEBRUAR
SB-234030
Mar 30, 2009
073200 FUEL SYSTEM, GASOLINE:FUEL INJECTION SYSTEM:INJECTORS
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 (DP
SB-414007
Mar 24, 2009
013000 STEERING:GEAR BOX (OTHER THAN RACK AND PINION)
MACK TRUCK: POWER STEERING GEARS ARE DESIGNED TO OPERATE AT A SPECIFIC MAXIMUM PRESSURE AND REQUIRE A MINIMUM AND MAXIMUM FLOW RANGE FROM THE POWER STEERING PUMP. ALL MACK TRUCKS INCLUDED. NO MODEL YEARS LISTED. *PE
SB-262001
Mar 20, 2009
015100 STEERING:HYDRAULIC POWER ASSIST:PUMP
MACK TRUCK: POWER STEERING PUMPS WITH METRIC FITTINGS. SERVICE REPLACEMENT POWER STEERING PUMPS SUPPLIED THROUGH THE MACK PARTS SYSTEM FOR MP7 AND MP8 ENGINES UTILIZE METRIC THREADS AT THE HIGH PRESSURE AND SUCTION PORTS. NO MODEL YEARS
SB-214-062
Mar 13, 2009
061120 ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER
MACK TRUCKS: WIRES WITHIN THE SMART REMOTE ACTUATOR CONNECTOR LOCATED ON THE RIGHT HAND SIDE OF THE ENGINE BELOW TURBOCHARGER, ARE SUBJECT TO VIBRATION DURING ENGINE OPERATION. CAN RESULT IN TERMINAL FRETTING. MODEL AND MODEL YEARS UNKNOWN
SB-214062
Mar 13, 2009
061120 ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER
MACK: TURBOCHARGER SMART REMOTE ACTUATOR (SRA) FAULTS. WIRES WITHIN THE SMART REMOTE ACTUATOR CONNECTOR LOCATED ON THE RIGHT HAND SIDE OF THE ENGINE BELOW THE TURBOCHARGER, ARE SUBJECT TO VIBRATION DURING ENGINE OPERATION. ENGINE MODEL MP7,
SB-329-008
Mar 12, 2009
103000 POWER TRAIN:AUTOMATIC TRANSMISSION
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
Mar 12, 2009
103000 POWER TRAIN:AUTOMATIC TRANSMISSION
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-215-026
Mar 11, 2009
062000 ENGINE AND ENGINE COOLING:COOLING SYSTEM
MACK TRUCKS: TO IMPROVE WATER PUMP SEAL LIFE, REDUCE OCCURRENCES OF PUSHING COOLANT (COOLANT LOSS FROM THE SURGE TANK) AND REDUCE COOLING SYSTEM SURGE NOISE/VIBRATION (NOISE AND VERY RAPID VIBRATION OF UPPER RADIATOR TUBE). MODEL AND MODEL
SB-215026
Mar 11, 2009
062000 ENGINE AND ENGINE COOLING:COOLING SYSTEM
MACK TRUCK: COOLING SYSTEM REVISIONS: THERMOSTAT HOUSING CONSISTS OF TWO SECTIONS (THERMOSTAT SECTION AND BYPASS SECTION), WITH A CAST WALL SEPARATING THE TWO. FOR THE BYPASS FEATURE TO FUNCTION, THERE MUST BE A PASSAGE THROUGH THE CAST WAL
SB-724-011
Mar 11, 2009
162900 STRUCTURE:BODY:ROOF AND PILLARS
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
Mar 11, 2009
162900 STRUCTURE:BODY:ROOF AND PILLARS
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 TH
SB-723-011
Mar 5, 2009
061200 ENGINE AND ENGINE COOLING:ENGINE:DIESEL
MACK TRUCKS: OIL SEEPAGE AT THE UNIT INJECTOR HARNESS PASS THROUGH FITTING (LOCATED ON THE TIMING GEAR COVER ON THE LEFT HAND SIDE OF THE ENGINE) MAY BE NOTICED ON CERTAIN US 04 EMISSION COMPLIANT MP7 ENGINES. MODEL AND MODEL YEARS UNKNOWN
SB-723011
Mar 5, 2009
061000 ENGINE AND ENGINE COOLING:ENGINE
MACK TRUCKS: OIL SEEPAGE AT THE UNIT INJECTOR HARNESS PASS THROUGH FITTING (LOCATED ON THE TIMING GEAR COVER ON THE LEFT HAND SIDE OF THE ENGINE) MAY BE NOTICED ON CERTAIN US04 EMISSION COMPLIANT MP7 ENGINES. MODEL AND MODEL YEARS UNKNOWN.
SB-420001
Mar 2, 2009
010000 STEERING
MACK TRUCKS: AXLE ALIGNMENT SPECIFICATIONS. ANY ADJUSTMENTS TO VEHICLE ALIGNMENT REQUIRE RECALIBRATION OF THE STEERING ANGLE SENSOR. ALL MACK MODEL TRUCKS. NO MODEL YEARS LISTED. *PE
SB-26-1018
Feb 13, 2009
062000 ENGINE AND ENGINE COOLING:COOLING SYSTEM
MACK TRUCKS: MERITOR WABCO AIR COMPRESSOR, CONVENTIONAL REPAIR FOR CERTAIN AIR COMPRESSOR FAILURES, SUCH AS FAILURE OF COMPRESSOR TO PUMP, SLOW AIR SYSTEM PRESSURE BUILD UP TIME, INTERMITTENT COMPRESSOR PUMPING, ETC, WAS TO REPLACE COMPRES
TSB-517009
Nov 21, 2008
106000 POWER TRAIN:AXLE ASSEMBLY
MACK TRUCK: BROKEN LONGITUDINAL TORQUE ROD MOUNTING STUD IN AXLE SPRING SEAT DUE TO WING BRACKET INTERFERENCE. THIS INCLUDES THE TD MODEL. NO MODEL YEARS LISTED. *PE
P-1673
Nov 14, 2008
061200 ENGINE AND ENGINE COOLING:ENGINE:DIESEL
MACK TRUCK: UNIT INJECTOR, INLET AND EXHAUST ROCKER ARMS, COMBUSTION SEALING WASHER AND UNIT INJECTOR YOKE REPLACEMENT. MODEL AND MODEL YEARS UNKNOWN. *PE
P-1674
Nov 14, 2008
061200 ENGINE AND ENGINE COOLING:ENGINE:DIESEL
MACK TRUCK: UNIT INJECTOR, INLET AND EXHAUST ROCKER ARMS, COMBUSTION SEALING WASHER, UNIT INJECTOR YOKE AND SLEEVE REPLACEMENT. *PE
SB-121037
Oct 28, 2008
160000 STRUCTURE
MACK TRUCKS: CRACKS IN LOWER FRAME FLANGE. ON CERTAIN CV AND RD MODEL CHASSIS EQUIPPED WITH CONSTANT SECTION FRAME RAILS, CRACKS MAY DEVELOP IN THE LOWER FRAME FLANGE IN THE AREA OF THE STEERING GEAR. *PE
SB-21-4058
Oct 24, 2008
061200 ENGINE AND ENGINE COOLING:ENGINE:DIESEL
MACK TRUCKS: REVISED EGR MIXER INLET TUBE. PREMATURE FAILURE OF THE EGR MIXER INLET TUBE MAY BE EXPERIENCED ON CERTAIN MACK MP8 ENGINES. MODEL AND MODELY YEARS UNKNOWN. *PE
SB-724010
Oct 21, 2008
114000 ELECTRICAL SYSTEM:WIRING
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 HAR