Technical Service Bulletins
Search 172,063 manufacturer communications covering 879 vehicle makes from 1955 to 2025.
Showing 2,701 bulletins for MACK
FSB 511-001
Aug 13, 2013
010000 STEERING
IT HAS BEEN REPORTED FROM THE FIELD SINCE THE RELEASE OF THE NEW STOPPING DISTANCE BRAKE PACKAGES ON 07/01/2011 THAT STEER AXLE BRAKE NOISE MAY PRESENT ITSELF AFTER A PERIOD OF TIME.
PI 0827
Aug 12, 2013
020000 SUSPENSION
A NUMBER OF PRE PRODUCTION VEHICLES HAVE BEEN BUILT EQUIPPED WITH THE TWIN Y AIR SUSPENSION. UPON REVIEW OF THESE VEHICLES IT HAS BEEN DETERMINED THAT SOME HAVE DEFECTIVE BUSHINGS WITHIN THE TOP PLATE AND SPRING SEAT.
PI 0824
Aug 5, 2013
060000 ENGINE (PWS)
THE EGR COOLER OUTLET COOLANT HOSE ASSEMBLY MUST BE CHANGED ON ALL VEHICLES INVOLVED IN THIS CAMPAIGN.
FSB-284-040
Aug 1, 2013
060000 ENGINE (PWS)
MACK: ON CERTAIN TRUCKS, THERE IS A SOFTWARE UPDATE FOR THE ENGINE CONTROL MODULE (ECM). MODEL LEU, MRU. NO YEARS LISTED. *PE
PI-0824
Aug 1, 2013
060000 ENGINE AND ENGINE COOLING
MACK: INFORMATION CONCERNING AUTHORIZATION FOR THE REPLACEMENT OF THE EGR COOLER OUTLET COOLANT HOSE ASSEMBLY INVOLVING VEHICLES BUILT BETWEEN 03/10/2010 AND 01/23/2013 WITH MACK MP10 US2010 ENGINES. *JS
PI-0827
Aug 1, 2013
020000 SUSPENSION
MACK: INFORMATION PROCEDURE REGARDING THE INSPECTION AND REPLACEMENT OF TOP PLATE AND SPRING SEAT, DUE TO DEFECTIVE BUSHINGS OF TWIN Y AIR SUSPENSION, IF NEEDED. MODEL CHU, CXU. NO YEARS LISTED. *PE
PI-0829
Aug 1, 2013
063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
MACK: INFORMATION CONCERNING THE EXHAUST BAND CLAMPS AND HEAT SHIELD FASTENERS THAT WERE NOT TORQUED CORRECTLY. THIS BULLETIN PROVIDES THE PROPER PROCEDURE FOR CHU,CXU, AND TD VEHICLES BUILT BETWEEN JUNE 28,2013 AND JULY 23,2013. *JS
FSB 655-001
Jul 29, 2013
161000 STRUCTURE:FRAME AND MEMBERS
IT HAS BEEN DISCOVERED ON REFUSE VEHICLES EQUIPPED WITH PRIMAAX? SUSPENSIONS THAT THE BUMP STOPS MAY SHEAR AWAY FROM THE FRAME UNDER CERTAIN CONDITIONS.
FSB 561-023
Jul 17, 2013
060000 ENGINE (PWS)
THE INCOMPATIBILITY OF HOSE ID AND COMPRESSOR FITTING SIZE HAS CAUSED THE COMPRESSOR HOSES TO COME LOOSE/BLOW OUT FROM THE AIR COMPRESSOR FITTINGS.
FSB-371-045
Jul 1, 2013
111100 ELECTRICAL SYSTEM:12V/24V/48V BATTERY:CABLES
MACK TRUCK: REGARDING THE BREAKING OR CRACKING, AT STARTER SOLENOID STUD, OF 90 DEGREE POSITIVE BATTERY CABLE LUG; THE LUG WAS BENT AT TIME OF ASSEMBLY, AND ENGINE VIBRATES, CAUSING TERMINATION OF TERMINAL TO WEAKEN. MODELS CXU, GU. MOD
PI-0822
Jul 1, 2013
118000 ELECTRICAL SYSTEM:SOFTWARE
MACK: INFORMATION CONCERNING TRANSMISSION ECU SOFTWARE UPDATE FOR OBD2013, MP7, MP8 CHU, AND CXU. *JS
PI 0823
Jun 25, 2013
160000 STRUCTURE
CERTAIN CXU VEHICLES MAY HAVE BEEN ASSEMBLED WITHOUT THE CHASSIS FAIRING SKIRT INSTALLED.
FSB 413-001
Jun 24, 2013
100000 POWER TRAIN
SOME MACK CONVENTIONAL CAB TRUCKS EQUIPPED WITH AIR ASSISTED CLUTCH CABLE PART NUMBER 21088848 MAY EXPERIENCE FRAYING OF THE CLUTCH CABLE AT THE CLEVIS WHERE IT ATTACHES TO THE CLUTCH PEDAL LINKAGE.
FSB 873-015
Jun 24, 2013
060000 ENGINE (PWS)
CERTAIN CHU, CXU, GU, AND TD VEHICLES MAY EXPERIENCE ISSUES WITH PREMATURE BLOWER MOTOR FAILURE DUE TO EXCESSIVE MOISTURE IN THE CLIMATE UNIT.
FSB 364-036
Jun 19, 2013
120000 LIGHTING (PWS)
MACK IS REMOVING THE FLASHER 20971013 FROM PRODUCTION AND THE AFTERMARKET DUE TO THE DURABILITY ISSUES OF THE FLASHER.
FSB 381-048
Jun 19, 2013
110000 ELECTRICAL SYSTEM
CERTAIN MACK TRUCKS BUILT BETWEEN JANUARY 1, 2010 AND DECEMBER 31, 2012, MAY EXPERIENCE A POPPING SOUND IN THE SPEAKERS WHEN THE KEY IS IN THE OFF POSITION.
FSB--381-048
Jun 1, 2013
117000 ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL
MACK TRUCKS: A POPPING SOUND MAY BE HEARD IN THE SPEAKERS OF SOME VEHICLES BUILT WITH A SEPARATE RADIO AMPLIFIER AND LOW VOLTAGE DISCONNECT SYSTEM. *JS
FSB-221-010
Jun 1, 2013
060000 ENGINE (PWS)
MACK TRUCKS: LOW OIL PRESSURE. STORED DTC SPN 100 FMI 1, DURING LONG HARD PULL CONDITIONS. *JS
FSB-364-036
Jun 1, 2013
110000 ELECTRICAL SYSTEM
MACK TRUCK: FLASHERS ARE TO BE REMOVED DUE TO DURABILITY ISSUES. *JS
FSB-413-001
Jun 1, 2013
101000 POWER TRAIN:CLUTCH ASSEMBLY
MACK TRUCKS: THE AIR ASSISTED CLUTCH CABLE ON SOME VEHICLES MAY FRAY AT THE CLEVIS. *JS
FSB-873-015
Jun 1, 2013
357100 EQUIPMENT:APPLIANCE:AIR CONDITIONER
MACK TRUCKS:DUE TO EXCESSIVE MOISTURE IN THE CLIMATE UNIT, SOME VEHICLES MAY DEVELOP A BLOWER MOTOR FAILURE. *JS
PI-0823
Jun 1, 2013
162000 STRUCTURE:BODY
MACK TRUCKS: THE CHASSIS FAIRING SKIRT NEEDS TO BE INSTALLED. *JS
FSB 820-002
May 31, 2013
020000 SUSPENSION
TO ADDRESS COMPLAINTS OF SHORT SERVICE LIFE OF HOOD SHOCKS ON CXU MODEL TRUCKS BUILT PRIOR TO APRIL 1, 2013, MACK HAS RELEASED A NEW SHOCK WITH PROTECTIVE BOOT.
FSB 820-003
May 31, 2013
020000 SUSPENSION
TO ADDRESS COMPLAINTS OF SHORT SERVICE LIFE OF HOOD SHOCKS ON CHU MODEL TRUCKS BUILT PRIOR TO APRIL 1, 2013, MACK HAS RELEASED A NEW SHOCK WITH PROTECTIVE BOOT.