Technical Service Bulletins
Search 172,063 manufacturer communications covering 879 vehicle makes from 1955 to 2025.
Showing 2,701 bulletins for MACK
33K002
Jun 1, 1995
061100 ENGINE AND ENGINE COOLING:ENGINE:GASOLINE
REVISED REPTO LUBRICANT LINE AND BEARING ADJUSTMENT SPECIFICATION CHANGE. *TW
37F002
Jun 1, 1995
063200 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:MANIFOLD/HEADER/MUFFLER/TAIL PIPE
NEW "LOW BOSS" EXHAUST MANIFOLDS. *TW
MA09E007
Apr 1, 1995
013000 STEERING:GEAR BOX (OTHER THAN RACK AND PINION)
NEW DESIGN STEERING SHAFT FOR FDM 7133 AND FDM 7143 MODELS. *TW
MACEC009
Apr 1, 1995
061120 ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER
CERTAIN 1994 MR MODEL CHASSIS EQUIPPED WITH NON-BRAKE MECHANICALLY GOVERNED E7 MAXIDYNE ENGINES WERE INCORRECTLY BUILT WITH TURBOCHARGERS SPECIFIED FOR CONVENTIONAL TORQUE RISE ENGINES. TO CORRECT THIS CONDITIION, DEALERS ARE TO REPLACE T
MAPI486
Apr 1, 1995
040000 SERVICE BRAKES, AIR
CERTAIN MACK CHASSIS EQUIPPED WITH PRUGE TYPE AIR DRYERS AND HOLSET AIR COMPRESSORS COULD POSSIBLY HAVE BEEN PLUMBED INCORRECTLY AT THE FACTORY. TO CORRECT THIS CONDITION, DEALERS ARE TO INSPECT THE AFFECTED CHASSIS AND CORRECTED AS OUTLI
53G001
Mar 1, 1995
061000 ENGINE AND ENGINE COOLING:ENGINE
OVERSIZE OUTSIDE DIAMETER MAIN BEARINGS FOR MACK E9 SERIES ENGINES. *TW
RCL/SC248
Mar 1, 1995
105300 POWER TRAIN:DRIVELINE:DRIVESHAFT
THE DRIVESHAFT CENTER BEARING HANGER BRACKET(S) USED TO MOUNT THE CENTER BEARING SUPPORT ASSEMBLY ON CH MODEL CHASSIS MAY CRACK AND SUBSEQUENTLY BREAK DUE TO BENDING FATIGUE. TO PREVENT DAMAGE, REPLACEMENT OF THE CENTER BEARING HANGER BRA
223001
Feb 1, 1995
061000 ENGINE AND ENGINE COOLING:ENGINE
OIL COOLER THERMOSTATIC BYPASS VALVE LEAKAGE. *TW
B40
Feb 1, 1995
073000 FUEL SYSTEM, GASOLINE:FUEL INJECTION SYSTEM
CHANGES IN THE ITC (INJECTION TIMING CONTROL). *TW
PI473
Feb 1, 1995
103000 POWER TRAIN:AUTOMATIC TRANSMISSION
NEW MOUNTING BOLT FOR AUTOMATIC TRANSMISSION TO ALLEVIATE A CONDITION WHERE THE BOLTS WERE NOT MAINTAINING CORRECT TORQUE. *TW
10A007
Jan 1, 1995
063200 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:MANIFOLD/HEADER/MUFFLER/TAIL PIPE
EXHAUST FLEX PIPE REPAIR. *TW
PIC468
Jan 1, 1995
116200 ELECTRICAL SYSTEM:IGNITION:MODULE
PROGRAM CHANGE TO CORRECT ERRATIC ENGINE SPEED PRIOR TO ACTUAL SHUTDOWN. *TW
RCL/SC246
Jan 1, 1995
013000 STEERING:GEAR BOX (OTHER THAN RACK AND PINION)
IT HAS BEEN DETERMINED THAT THE STEERING LEVERS MAY HAVE MANUFACTURING DEFICIENCIES WHICH COULD LEAD TO CRACKS DEVELOPING IN THE BODY DIAMETER TO DRAG LINK EYE RADIUS. THE PROGRESSIVE NATURE OF THESE CRACKS COULD LEAD TO UNEXPECTED STEERI
RCL/SC247
Jan 1, 1995
013000 STEERING:GEAR BOX (OTHER THAN RACK AND PINION)
THE FLAT WASHERS USED IN THE STEERING GEAR TO MOUNTING ASSEMBLY MAY NOT HAVE BEEN OF SUFFICIENT HARDNESS, AND MAY HAVE CRACKED WHEN THE MOUNTING HARDWARE WAS TORQUED TO SPECIFICATIONS. TO CORRECT THE PROBLEM, DEALERS ARE TO REMOVE AND REP
78G004
Dec 1, 1994
102000 POWER TRAIN:MANUAL TRANSMISSION
NEW SYNCHRONIZER VALVE SLEEVE FOR T200 SERIES TRANSMISSIONS WITH SYNCHRONIZER RANGE VALVE. *TW
01C017
Nov 1, 1994
161000 STRUCTURE:FRAME AND MEMBERS
AL SUSPENSION CROSSMEMBER - LOWER BRACKETS OF AL SUSPENSION CENTER CROSSMEMBERS MAY CRACK DUE TO TORQUE ROD STRESS IN THIS AREA. *TW