Technical Service Bulletins
Search 172,063 manufacturer communications covering 879 vehicle makes from 1955 to 2025.
Showing 2,701 bulletins for MACK
SB611003
Apr 29, 2008
061000 ENGINE AND ENGINE COOLING:ENGINE
CRACKS IN ENGINE TUNNEL AT LEFT-SIDE CROSS SILL -MR AND MRU MODELS. *TT UPDATED 6/11/08. *NJ
P-1660
Apr 24, 2008
355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL
MACK TRUCKS: INSTALLATION OF AIR TANK MOUNTING STRAPS AND END GUSSET - CHU AND GU MODELS. THE AIR TANK MOUNTING TABS WHICH ARE WELDED TO THE RESERVOIRS CAN CRACK IN THE AREA OF THE MOUNTING BOLT HOLES. MODELS CHU, GU7 AND GU8 (2006-2007)
SB471008
Apr 24, 2008
022520 SUSPENSION:REAR:AXLE:NON-POWERED AXLE ASSEMBLY
MACK - REPLACEMENT AXLE HOUSINGS--MODELS EQUIPPED WITH AL SUSPENSION AND MACK REAR AXLES. MANUFACTURED MAY 2004 OR LATER. MODELS UNKNOWN. *NJ
SB724009
Apr 8, 2008
121200 EXTERIOR LIGHTING:HEADLIGHTS:SWITCH
MACK - HEADLIGHT ROCKER SWITCH FAILURES--CXN, CHN, CX, CH, CV, CT, CL, MR AND LE (V-MAC III) MODELS. MODEL YEAR UNKNOWN. *NJ
SB214040
Apr 3, 2008
980000 UNKNOWN OR OTHER
MACK - HEAVY-DUTY V-BAND CLAMP FOR AIR INLET CONNECTION--ASET AI/AMI ENGINES. MODEL YEAR UNKNOWN. *NJ
SB724008
Mar 26, 2008
114000 ELECTRICAL SYSTEM:WIRING
MACK - BLOWER MOTOR SWITCH WIRING UPGRADE--ALL WITH BEHR HVAC UNITS. MANUFACTURED PRIOR TO FEB. 1, 2008. *NJ
SB-121042
Mar 20, 2008
161000 STRUCTURE:FRAME AND MEMBERS
MACK TRUCK: CRACKS IN UPPER FRAME FLANGE AT STEERING GEAR CUT-OUT - ALL CHN MODELS. (NOT APPLICABLE TO MACK TRUCKS AUSTRALIA). *PE
SB-210045
Jan 30, 2008
061000 ENGINE AND ENGINE COOLING:ENGINE
MACK TRUCK: INFORMATION CONCERNING POWER TAKE OFF (PTO) INSTALLATION AND OPERATION ON CHASSIS EQUIPPED WITH 2007 AND LATER EMISSION COMPLIANT MP7 AND MP8 ENGINES. NO MODEL OR MODEL YEARS LISTED. *PE
SB-214020
Jan 30, 2008
061120 ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER
MACK TRUCK: ACTIONS REQUIRED TO AVOID REPEAT TURBOCHARGER FAILURES. WHEN REPLACING A FAILED TURBOCHARGER, IT IS EXTREMELY IMPORTANT THAT THE FOLLOWING ACTIONS BE PERFORMED TO AVOID A REPEAT FAILURE: CLEAN OIL THAT ACCUMULATED IN INLET MAN
SB-273013
Jan 23, 2008
061200 ENGINE AND ENGINE COOLING:ENGINE:DIESEL
MACK TRUCK: INTAKE AIR, CHARGE AIR AND TURBOCHARGER COMPRESSOR DISCHARGE TEMPERATURE SENSORS-ASET AC ENGINES. ON VEHICLES EQUIPPED WITH AN ASET AC ENGINE, TEMPERATURE SENSOR PART NO 64MT450A IS USED TO MEASURE INTAKE AIR, CHARGE AIR AND TU
SB-313004
Jan 23, 2008
101000 POWER TRAIN:CLUTCH ASSEMBLY
MACK TRUCK: REVISED AIR ASSIST CLUTCH CABLE. EFFECTIVE 9/17/07, A REVISED AIR ASSIST CLUTCH CABLE (PART NO. 27RC410M) WAS IMPLEMENTED INTO PRODUCTION ON CXU, CHU, AND GU MODEL CHASSIS. NO MODEL YEARS LISTED. *PE
SB-234015
Jan 21, 2008
061000 ENGINE AND ENGINE COOLING:ENGINE
MACK TRUCK: AFTERTREATMENT FUEL INJECTOR (AFI) SERVICE-US07 EMISSION COMPLIANT MP7 AND MP8 ENGINES. AFTERTREATMENT FUEL INJECTOR (AFI) MOUNTED TO THE DIFFUSER PIPE AT THE REAR OF THE TURBOCHARGER TO RAISE THE TEMPERATURE INSIDE THE DIESEL
SA-531-001
Jan 16, 2008
125000 EXTERIOR LIGHTING:BRAKE LIGHTS
MACK TRUCK: INCORRECT AUXILIARY BRAKE LIGHT SWITCH SC333 CHASSIS REMOVAL. *PE
SC-334
Jan 11, 2008
042300 SERVICE BRAKES, AIR:SUPPLY:CHECK VALVE
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 WHEREB
SB-214052
Jan 10, 2008
061200 ENGINE AND ENGINE COOLING:ENGINE:DIESEL
MACK TRUCK: EXHAUST MANIFOLDS WITH STAINLESS STEEL SEAL RINGS-CXP AND CTP MODELS EQUIPPED WITH US04 EMISSION COMPLIANT MP7 ENGINES. TO PROVIDE IMPROVED SEALING AT THE EXHAUST MANIFOLD JOINTS, A REVISED EXHAUST MANIFOLD ASSEMBLY (PART NO.
SB-631002
Jan 9, 2008
131000 VISIBILITY:WINDSHIELD
MACK TRUCK: WINDSHIELD INSTALLATION (ROPE-PULL METHOD)-CXU, CHU, GU, CXP, CTP, CXN, CHN, CX, CH, CT, CV AND CL MODELS. MACK TRUCKS NOW USES A ROPE PULL WINDSHIELD GLASS INSTALLATION METHOD ON CURRENT PRODUCTION CONVENTIONAL MODELS. THI
SB-635012
Jan 4, 2008
357100 EQUIPMENT:APPLIANCE:AIR CONDITIONER
MACK TRUCK: FINE PARTICULATE FILTER FOR HVAC UNITS-CXU, CHU, GU, CXP AND CTP MODELS. A PLEATED FINE PARTICULATE HVAC FILTER (PART NO. 85112361) HAS BEEN DEVELOPED FOR THE HVAC UNITS IN CERTAIN MODELS. NO MODEL YEARS LISTED.
121039
Aug 31, 2007
021242 SUSPENSION:FRONT:SPRINGS:LEAF SPRING ASSEMBLY:HANGER,BRACKET
LOWER FRAME FLANGE CRACKS - MRU AND MR MODELS. CRACKS MAY DEVELOP IN THE LOWER FRAME FLANGE OF THE RIGHT-HAND FRAME RAIL ON MR MODEL CHASSIS. *NJ
735002
Aug 17, 2007
046000 SERVICE BRAKES, AIR:ANTILOCK
MACK ROAD STABILITY ADVANTAGE (BENDIX ABS-6 ADVANCED WITH ESP). MACK CXU, CXP, CXN, CHU, CHN, GU, CT7, CTP. *TT UPDATED ON 10/02/07. *NJ
735003
Aug 17, 2007
046300 SERVICE BRAKES, AIR:ANTILOCK:WHEEL SPEED SENSOR
BRAKE DEMAND SENSOR TERMINAL CORROSION - BENDIX ABS WITH MACK ROAD STABILITY ADVANTAGE (RSA). *NJ
121032
Aug 10, 2007
022130 SUSPENSION:REAR:SPRINGS:AIR SUSPENSION SYSTEM
SUSPENSION CROSSMEMBERS FOR CT, CTP, CV, CL AND MR MODELS EQUIPPED WITH RAYDAN AL460/AL520 VOCATIONAL AIR SUSPENSION. MACK. MODEL YEAR UNKNOWN. *TT UPDATED ON 10/02/07. *NJ
631001
Aug 9, 2007
131000 VISIBILITY:WINDSHIELD
WINDSHIELD GLASS INSTALLATION - MRU/LEU/MR/LE/RD/RB/DM AND DMM MODELS. MAKE CERTAIN THAT ALL TRACES OF OLD WEATHER SEAL AND SEALING COMPOUND ARE REMOVED FROM THE GLASS AND BODY PANELS ALSO DRY AND FREE OF DIRT. *NJ
121037
Aug 6, 2007
161000 STRUCTURE:FRAME AND MEMBERS
CRACKS IN LOWER FRAME FLANGE - CV AND RD MODELS. *NJ
131009
Aug 23, 2006
021300 SUSPENSION:FRONT:SHOCK ABSORBER
FRONT SUSPENSION SHOCK ABSORBER LOWER MOUNTING BRACKET REINFORCEMENT PLATE - MACK CT MODEL CHASSIS. *TT
122003
Aug 2, 2006
161100 STRUCTURE:FRAME AND MEMBERS:UNDERBODY SHIELDS
FRAME TIE BAR MOUNTING BRACKETS - CHN MODEL CHASSIS. MACK. *TT