Technical Service Bulletins
Search 172,063 manufacturer communications covering 879 vehicle makes from 1955 to 2025.
Showing 2,701 bulletins for MACK
FSB873021
Jan 8, 2018
062000 ENGINE AND ENGINE COOLING:COOLING SYSTEM
HVAC Filter Blocked, Repair, LR
K22023583
Jan 5, 2018
270000 LANE DEPARTURE
Mack Chassis - CXU - Lane Departure Warning System ( LDWS ) More Sensitive To The Right-hand ( Passenger ) Side Of The Vehicle; PI0882
K77864401
Jan 4, 2018
070000 FUEL SYSTEM, GASOLINE
Mack Chassis - Diesel Exhaust Fluid ( DEF ) System Cleaning/Flush After A Pump Failure or System Contamination.Removed Tech Tip, Added correct operation ID
K53510452
Jan 2, 2018
070000 FUEL SYSTEM, GASOLINE
Expired - Refer to K93039325 - Mack Chassis - SNM16-032 DEF (Diesel Exhaust Fluid) Contamination In Diesel Fuel.New solution released with improved information
K91214678
Jan 2, 2018
063100 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL
Automated Manual Transmission ( AMT ) Faults - Diagnostic Trouble Codes ( DTCs ) P1052 - 18 , PID 33 FMI 5 Intermittent Fault In Cold Weather Updated repair information
K93039325
Jan 2, 2018
070000 FUEL SYSTEM, GASOLINE
Mack Chassis - Diesel Exhaust Fluid ( DEF ) Contamination In Fuel System, Inspection And Repair - US10 And Newer; Includes US17 Chassis (GHG17 Only document in development)
PI 0874
Dec 27, 2017
118000 ELECTRICAL SYSTEM:SOFTWARE
ON CERTAIN MACK TRUCKS BUILT WITH COMPRESSED NATURAL GAS ENGINE (CNG) OR LIQUID NATURAL GAS (LNG) THERE COULD BE NO WARNINGS, POP-UPS OR ICONS FOR ANY FAULT FROM THE ENGINE. THIS IS DUE TO AN INSTRUMENT CLUSTER SOFTWARE ISSUE.
K24483157
Dec 19, 2017
060000 ENGINE (PWS)
Diagnostic Trouble Codes ( DTC ) P208E And P103B Logging With Possible Derate ( SCR Inducement ) - OBD15, US14+OBD16 Emissions And Newer Rewrote test procedure for better clarity.
K17696792
Dec 18, 2017
060000 ENGINE AND ENGINE COOLING
Diagnostic Trouble Code ( DTC ) P24F6 - 00, Exhaust Aftertreatment Fuel Air Purge Valve Stuck Open Or DTC P24F7 - 00, Exhaust Aftertreatment Fuel Air Purge Valve Stuck Closed - US15 Emissions And Newer
K99442522
Dec 12, 2017
103000 POWER TRAIN:AUTOMATIC TRANSMISSION
Mack Chassis - Grade Gripper Diagnostics - System Slow To Disengage Or Does Not Disengage, Functions Intermittently, Rough Engagement
K51117312
Dec 6, 2017
063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
DTC P1000-00 may come active on a chassis, either alone or accompanying other SCR system codes.
K11065398
Dec 5, 2017
060000 ENGINE (PWS)
Mack Chassis - Crankcase Ventilation ( CCV ) Oil Leaks - FSB 257 - 004, FSB 257 - 006 - US14 And US15 Emissions
K84262037
Nov 21, 2017
980000 UNKNOWN OR OTHER
Issues with the Charge Air System may result in the presence of oil in the Charge Air Cooler ( CAC ) or intake piping.
K75024255
Nov 3, 2017
060000 ENGINE AND ENGINE COOLING
During extended periods of idling, engine speed may increase for a short time without any external command to do so.
FSB874-055
Nov 1, 2017
060000 ENGINE AND ENGINE COOLING
On some LR models condensation from the evaporator may not drain correctly. This can lead to water being splashed into the blower motor and cause the blower motor to fail.
FSB431-010
Oct 31, 2017
100000 POWER TRAIN
This procedure is to repair I-Shift transmissions in the field that exhibit a grinding noise when the transmission range shifts (for example: between 6th and 7th gear) built between 01/01/2013 and 08/18/2014.
FSB652-005
Oct 31, 2017
020000 SUSPENSION
On some MACK CHU, CXU, GU, TD, LEU, LR, and MRU trucks built from 01/14/2013 and 01/20/2017, the V-Stay carrier bolt hole in the mRide suspension may become stripped, causing the V-Stay torque rod bolt to pull free from the carrier housing.
FSB761-002
Oct 31, 2017
021300 SUSPENSION:FRONT:SHOCK ABSORBER
MACK CHU, CXU, GU, LEU, LR, MRU, and TD trucks require a visual shock absorber inspection during regular maintenance schedules. The visual inspection will include checking the shock absorber for leakage, any irregularities, or worn shock bu
K76992557
Oct 31, 2017
063100 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL
Aftertreatment Hydrocarbon Injector (AHI, 7th Injector) Changes Between US10 And US17 (GHG17, Common Rail Fuel System) - Chassis Experiencing High soot Accumulation, Abnormal ( Too High, Overtemp, Too Low ) Regeneration Temperatures Followi
FSB373-024
Oct 26, 2017
103000 POWER TRAIN:AUTOMATIC TRANSMISSION
Some Mack trucks equipped with mDrive transmissions built between September 6, 2010 and August 14, 2017 may have PTO solenoid bracket or transmission harness connector failures due to excessive vibration.
K18013154
Oct 26, 2017
060000 ENGINE (PWS)
Chassis equipped with a US17 ( GHG17 ) engine and one box EATS may exhibit one or both DTCs P2463 - 00 Particulate Filter Restriction - Soot Accumulation Bank 1 and P2453 - 64 Diesel Particulate Filter Pressure Sensor "A" Circuit Range /Per
K40525473
Oct 11, 2017
355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL
OBD2015/16 ( MY - 2016/2017 ) Trucks are logging U3017 Fault Code ( DTC )
K26817710
Oct 3, 2017
357100 EQUIPMENT:APPLIANCE:AIR CONDITIONER
For a Mack chassis equipped with a Behr HVAC unit, damage to the connectors and terminals for the climate control blower motor switch may be observed, most often on the eight-pin connector.