Technical Service Bulletins
Search 172,063 manufacturer communications covering 879 vehicle makes from 1955 to 2025.
Showing 2,701 bulletins for MACK
FSB 873-020
May 11, 2016
357100 EQUIPMENT:APPLIANCE:AIR CONDITIONER
HVAC FLANGE, INSTALLATION, CHU, CXU, GU, TD
SC0402
Apr 29, 2016
010000 STEERING
MACK TRUCKS, INC. HAS DETERMINED THAT A DEFECT THAT RELATES TO MOTOR VEHICLE SAFETY EXISTS IN CERTAIN TITAN MODEL VEHICLES MANUFACTURED FROM FEBRUARY 25, 2015 TO FEBRUARY 12, 2016. THE BOLT CONNECTING THE UPPER STEERING SHAFT TO THE LOWER S
SC0399
Apr 27, 2016
100000 POWER TRAIN
MACK TRUCKS INC. HAS DETERMINED THE CAP NUT THAT RETAINS THE INTERAXLE DRIVESHAFT YOKE TO THE REAR AXLE INPUT SHAFT MAY BE SUBJECT TO PREMATURE LOOSENING ON CERTAIN CHU, CMH, CMM, CXU, GU, LEU, LR, MRU AND TD MODEL VEHICLES. THE POTENTIAL R
FSB 366-002
Mar 30, 2016
110000 ELECTRICAL SYSTEM
FRONT RADAR, FAILURE. CERTAIN MACK CHU, CXU, AND GU TRUCKS BUILT BETWEEN 11/11/2013 AND 01/14/2015, EQUIPPED WITH FRONT RADAR MAY EXPERIENCE LOSS OF FRONT OBJECT DETECTION OR ERRATIC OPERATION OF CRUISE CONTROL FUNCTIONS. THE TERMINAL SEAL
PV729-PI0859A
Mar 30, 2016
110000 ELECTRICAL SYSTEM
FRONT RADAR, FAILURE. CERTAIN MACK CHU, CXU, AND GU TRUCKS BUILT BETWEEN 11/11/2013 AND 01/14/2015, EQUIPPED WITH FRONT RADAR MAY EXPERIENCE LOSS OF FRONT OBJECT DETECTION OR ERRATIC OPERATION OF CRUISE CONTROL FUNCTIONS. THE TERMINAL SEAL
FSB 468-001
Mar 24, 2016
105000 POWER TRAIN:DRIVELINE
POWER DIVIDER LOCKOUT LEAKAGE, REPAIR. ON MACK VEHICLES BUILT BETWEEN JULY 6, 2015 AND JANUARY 15, 2016 EQUIPPED WITH A MACK CRD 150 CARRIER, THE MOUNTING BOLT HOLE ON THE DRIVER SIDE OF THE POWER DIVIDER HOUSING WHICH LINES UP WITH THE F
FSB 233-006A
Mar 14, 2016
060000 ENGINE (PWS)
ENGINE FUEL FILTERS. ENGINE FUEL FILTERS (PART NUMBER 21380521) WITH WEEK NUMBER DATE CODES ?15_33? (AUGUST 10, 2015) THROUGH ?15_39? (SEPTEMBER 27, 2015) SHOULD NOT BE INSTALLED ON AN ENGINE WITHOUT FIRST BEING INSPECTED. THE WEEK NUMBER
FSB 233 006 Mack
Mar 1, 2016
061520 ENGINE AND ENGINE COOLING:ENGINE:OIL/LUBRICATION:FILTER/SCREEN
Engine fuel filters (part number 21380521) with week number date codes ?15_33? (August 10, 2015) through ?15_39? (September 27, 2015) should not be installed on an engine without first being inspected. The week number date code is marked on
FSB 366 002
Mar 1, 2016
263000 FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL
Certain MACK CHU, CXU, and GU trucks built between 11/11/2013 and 01/14/2015, equipped with front radar may experience loss of front object detection or erratic operation of cruise control functions. The terminal seals of the harness is all
FSB 468 001
Mar 1, 2016
060000 ENGINE AND ENGINE COOLING
On MACK vehicles built between July 6, 2015 and January 15, 2016 equipped with a MACK CRD 150 carrier, the mounting bolt hole on the driver side of the power divider housing which lines up with the fill plug is drilled through to the fill p
PI 0859-04
Mar 1, 2016
263000 FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL
Certain MACK CHU, CXU, and GU trucks built between 11/11/2013 and 01/14/2015, equipped with front radar may experience loss of front object detection or erratic operation of cruise control functions. The terminal seals of the harness is all
FSB 873-016
Feb 6, 2016
350000 EQUIPMENT
SOME MACK SLEEPER MODELS MAY EXPERIENCE ISSUES WITH FLUCTUATION OF BUNK LIMATE UNIT AIR TEMPERATURE. THE FLUCTUATION MAY BE THE RESULT OF CONSTANT MOVEMENT OF THE BLEND AIR DOOR.
FSB 255-025
Jan 29, 2016
060000 ENGINE (PWS)
TURBOCHARGER REORIENTATION. DUE TO PART NUMBER REDUCTION, WHEN REPLACING THE TURBOCHARGER ON MACK LEU AND MRU VEHICLES WITH MP7 AND MP8 ENGINES THE TURBOCHARGER COMPRESSOR HOUSING MUST BE REORIENTED TO ALIGN WITH THE CHARGE AIR COOLER PIPE
FSB 593-013A
Jan 29, 2016
100000 POWER TRAIN
GRADE GRIPPER SOLENOID, REPLACEMENT. ON SOME MACK CHU, CXU, GU, AND TD TRUCK MODELS BUILT BETWEEN 04/31/2008 AND 11/30/2015, THE SOLENOID VALVE FOR THE GRADE GRIPPER FEATURE IS PRONE TO INTERNAL CONTAMINATION IN HARSH ENVIRONMENTS. THE INT
FSB 222-004A
Jan 13, 2016
060000 ENGINE AND ENGINE COOLING
OIL FILTER HOUSING. THE INTRODUCTION OF A NEW STYLE OIL FILTER HOUSING REQUIRES REPLACEMENT OF THE OIL COOLER INLET PIPE WHEN REPLACING THE PREVIOUS STYLE HOUSING ON US2010 AND US2014 EMISSION MACK MP8 ENGINES WITH AN ENGINE SERIAL NUMBER
PI 0859A
Jan 13, 2016
110000 ELECTRICAL SYSTEM
FRONT RADAR, FAILURE. CERTAIN MACK CHU, CXU, AND GU TRUCKS BUILT BETWEEN 11/11/2013 AND 01/14/2015, EQUIPPED WITH FRONT RADAR MAY EXPERIENCE LOSS OF FRONT OBJECT DETECTION OR ERRATIC OPERATION OF CRUISE CONTROL FUNCTIONS. THE TERMINAL SEAL
FSB 222 004 Mack
Jan 1, 2016
060000 ENGINE (PWS)
FIELD SERVICE BULLETIN TRUCKS: The introduction of a new style oil filter housing requires replacement of the oil cooler inlet pipe when replacing the previous style housing on US2010 and US2014 emission MACK MP8 engines with an engine seri
FSB 255 025
Jan 1, 2016
060000 ENGINE AND ENGINE COOLING
Due to part number reduction, when replacing the turbocharger on MACK LEU and MRU vehicles with MP7 and MP8 engines the turbocharger compressor housing must be reoriented to align with the charge air cooler pipe flange. Also, for MP7 engine
FSB 593 013
Jan 1, 2016
114005 ELECTRICAL SYSTEM: INTEGRATED TRAILER BRAKE CONTROL
On some MACK CHU, CXU, GU, and TD truck models built between 04/31/2008 and 11/30/2015, the solenoid valve for the grade gripper feature is prone to internal contamination in harsh environments. The internal contamination of the solenoid va
PI 0859-03
Jan 1, 2016
110000 ELECTRICAL SYSTEM
Certain MACK CHU, CXU, and GU trucks built between 11/11/2013 and 01/14/2015, equipped with front radar may experience loss of front object detection or erratic operation of cruise control functions. The terminal seals of the harness is all