Technical Service Bulletins
Search 172,063 manufacturer communications covering 879 vehicle makes from 1955 to 2025.
Showing 2,701 bulletins for MACK
FSB 722-003
Apr 14, 2015
020000 SUSPENSION
"THE UNWARRANTED ERRORMESSAGES ""HYBRID SYSTEM FAULT"" AND ""REDUCED ENGINE POWER"" CAN APPEAR SPORADICALLY IN THE INSTRUMENT CLUSTER ON THE AFFECTED VEHICLES UNDER CERTAIN DRIVING CONDITIONS BECAUSE THE DIAGNOSTIC FUNCTION FOR THE HYBRID D
FSB 381-013
Apr 13, 2015
117000 ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL
INSTRUMENT CLUSTER, REPROGRAMMING. CERTAIN MACK CXU, AND GU TRUCKS EQUIPPED WITH A CUMMINS ENGINE, AND BUILT BETWEEN JANUARY 1, 2013 AND SEPTEMBER 28, 2014, MAY ACTIVATE AN MID 140 SID 250 FMI 9 FAULT CODE AND CAUSE AN INTERMITTENT DISPLAY
284-056-01
Apr 1, 2015
060000 ENGINE (PWS)
MACK TRUCKS 2015 MODEL YEARS: BULLETIN INFORMATION REGARDING NEW ENGINE HARNESS CHANGES MP7, MP8,US2014 CHU, CXU, GU, LEU, MRU. THE RETAINING CLAMPS HAVE CHANGED FROM METAL TO PLASTIC WITH METAL INSERTS THAT ARE INTEGRATED INTO THE HARNESS.
513-001-01
Apr 1, 2015
046100 SERVICE BRAKES, AIR:ANTILOCK:CONTROL UNIT/MODULE
MACK TRUCKS, INC.: FIELD SERVICE BULLETIN TRUCKS: CERTAIN MACK ,CHU, CXU,AND GU TRUCKS EQUIPPED WITH THE BASIC ESP PACKAGE AND BUILT BETWEEN JANUARY 1,2010 AND NOVEMBER 9, 2014 NEEDS REPROGRAMMING OF THE BRAKE ELECTRONIC CONTROL UNIT. *L
722-003-01
Apr 1, 2015
020000 SUSPENSION
MACK TRUCKS INC.: FIELD SERVICE BULLETIN TRUCKS: THE TWIN Y SUSPENSION, AIR SPRING REQUIRES REPLACEMENT ON SOME MACK TRUCKS BUILT BETWEEN 3/30/2015 ON CERTAIN APPLICATIONS CHU, CXU, GU,TD. *LJ
FSB 258-035
Mar 10, 2015
063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
"AFTERTREATMENT DIESEL EXHAUST FLUID, (DEF) TANK VENT FILTER. MACK TRUCKS HAS INTRODUCED A DEF TANK VENT FILTER KIT DESIGNED FOR USE IN HARSH, ABRASIVE AND DIRTY ENVIRONMENTS. THIS FILTER SHOULD BE REPLACED WHEN THE VEHICLE AIR FILTER IS R
293-027
Jan 29, 2015
062000 ENGINE AND ENGINE COOLING:COOLING SYSTEM
EGR MASS FLOW RATE LOW. THIS BULLETIN IS RELEASED TO ADDRESS HIGH COUNTS OF DIAGNOSTIC TROUBLE CODE (DTC) SPN 2659 FMI 18 OR P0401 ONLY DURING NORMAL TO HIGH LOAD DRIVING CONDITIONS ON VEHICLES ASSEMBLED BETWEEN JANUARY 2010 AND DECEMBER 2
PI 0858
Jan 21, 2015
060000 ENGINE (PWS)
VEHICLE ELECTRONIC CONTROL UNIT (VECU),REPROGRAMMING, VEHICLE SPEED SENSOR. CERTAIN MACK CHU, AND CXU TRUCKS BUILT FROM 10/21/2010 TO 02/28/2011, AND EQUIPPED WITH AN MDRIVE TRANSMISSION MAY EXPERIENCE ENGINE OVER-REV PAST THE GOVERNED SPE
PI 0857
Jan 14, 2015
060000 ENGINE (PWS)
CONTROL MODULE SOFTWARE UPDATES. SOFTWARE UPDATES WITH ENHANCEMENTS ARE AVAILABLE FOR THE ENGINE CONTROL MODULE (ECM) FOR MACK MRU/LEU MP7 ENGINES WITH US2014 EMISSION LEVEL ON VEHICLES BUILT BETWEEN 1/28/2014 AND 11/7/2014. ENGINE CONTROL
FSB 861-006
Jan 6, 2015
162200 STRUCTURE:BODY:BUMPERS
BUMPER, REPLACEMENT. THE CURRENT FRONT BUMPER ON SOME MACK MRU TRUCKS BUILT BETWEEN 10/22/2007 AND 11/14/2014 MAY EXPERIENCE TWISTING AND WARPING WHEN MOUNTED WITH SINGLE SUPPORT STRUTS AT EACH END OF THE BUMPER. TO PREVENT WARPING AND TWI
FSB 237-019
Dec 12, 2014
070000 FUEL SYSTEM, GASOLINE
"AFTERMARKET INJECTOR STRATEGY, EFFECTIVE SEPTEMBER 15, 2014, TWO AFTERMARKET STRATEGIES HAVE BEEN DEVELOPED TO IMPROVE INJECTOR REPAIRS. BASED ON VEHICLE DATA AND REPAIR HISTORY, TECHNICIANS WILL BE DIRECTED TO FOLLOW THE APPROPRIATE REPA
FSB 593-014
Dec 11, 2014
030000 BRAKES (PWS)
GRADE GRIPPER QUICK RELEASE VALVE, REPLACEMENT. ON SOME MACK CHU, CXU, AND GU TRUCKS BUILT BETWEEN 04/31/2008 AND 01/05/2015, AND EQUIPPED WITH THE GRADE GRIPPER FUNCTION MAY EXPERIENCE A SLOW RELEASE OF THE TRAILER?S SERVICE BRAKES. ADDIT
FSB 371-040
Dec 4, 2014
046000 SERVICE BRAKES, AIR:ANTILOCK
Anti-Lock Brake System (ABS) Sensor Connector, Replacement
FSB 884-007
Dec 4, 2014
150000 SEAT BELTS
ON CERTAIN MACK MRU TRUCKS MANUFACTURED FROM 06/04/2014 THROUGH 06/18/2014, THE DRIVER SIDE SEAT BELT BOLTS MAY LOOSEN OVER TIME AND POTENTIALLY CAUSE THE SEAT BELT TO DETACH FROM THE SEAT FRAME, CAB WALL, AND CAB FLOOR. DURING SEAT BELT IN
237-019
Dec 1, 2014
073200 FUEL SYSTEM, GASOLINE:FUEL INJECTION SYSTEM:INJECTORS
MACK TRUCKS: NEW STRATEGIES HAVE BEEN RECOMMENDED TO IMPROVE INJECTOR REPAIRS. TECHNICIANS WILL FOLLOW THE NECESSARY GUIDELINES FOR THE PROCEDURE. *LJ
371-040
Dec 1, 2014
046000 SERVICE BRAKES, AIR:ANTILOCK
MACK TRUCKS: 2013-2014 SIGNS OF CORROSION ARE SHOWING FROM THE ANTI-LOCK BRAKE SYSTEM SENSOR CONNECTOR WHICH NEEDS REPLACEMENT. CORROSION OF THE SENSOR CAN CAUSE THE ENGINE TO DE-RATE. *LJ
593-014
Dec 1, 2014
118000 ELECTRICAL SYSTEM:SOFTWARE
MACK TRUCKS: 2008-2015: SLOW RELEASE OF TRAILER BRAKES, EQUIPPED WITH GRADE GRIPPER, CAUSES VARIOUS COMBINATIONS AND CERTAIN TRUCK OPTIONS. *LJ
593-014-01
Dec 1, 2014
114005 ELECTRICAL SYSTEM: INTEGRATED TRAILER BRAKE CONTROL
MACK TRUCKS: GRADE GRIPPER REPLACEMENT FOR TRUCK MODELS; MACK, CHU, CXU AND GU FOR THE FOLLOWING YEARS 2008-2015. THE FOLLOWING TRUCKS MAY ALSO EXPERIENCE SLOW RELEASE OF THE BRAKES. *LJ
884-007
Dec 1, 2014
150000 SEAT BELTS
MACK TRUCKS: TRUCKS MANUFACTURED FROM 06/04/2014-06/18/2014 REQUIRES TIGHTENING OF SEAT BELT BOLTS. NO REPORTS HAVE BEEN RECEIVED OF BELTS COMING DETACHED THIS IS A PROACTIVE MEASURE FOR THE SAFETY OF THE CUSTOMERS. *LJ
PI 0856
Nov 21, 2014
060000 ENGINE (PWS)
"ROCKER ARMS, REPLACEMENT AND INJECTOR RETORQUE. MACK TRUCKS HAS AUTHORIZED REPLACEMENT OF THE EXHAUST BRAKE ROCKER ARMS AND INJECTOR RETORQUE ON VEHICLES BUILT BETWEEN 09/03/2014 AND 10/27/2014 WITH MACK MP10 US2014 ENGINES. THE ENGINE BR
FSB 851-009
Nov 19, 2014
162300 STRUCTURE:BODY:DOOR
"PEEP WINDOW MOLDING, REPAIR. ON SOME MACK TRUCKS, THE PEEP WINDOW MOLDING IS SEPARATING FROM THE HINGES AND FALLING AWAY FROM THE DOOR. TO PREVENT THE PEEP WINDOW MOLDING FROM FALLING AWAY FROM THE DOOR, SIX POINT SOCKET SCREW (PART NUMBE
PI 0855
Nov 17, 2014
118000 ELECTRICAL SYSTEM:SOFTWARE
OBD2013 SOFTWARE UPDATES. SOFTWARE UPDATES WITH ENHANCEMENTS ARE AVAILABLE FOR THE ENGINE CONTROL MODULE (ECM) AND AFTERTREATMENT CONTROL MODULE ACM) FOR MACK MP7, MP8 AND MP10 ENGINES ON OBD2013 VEHICLES BUILT FROM FEBRUARY 1, 2013 TO F