Technical Service Bulletins
Search 172,063 manufacturer communications covering 879 vehicle makes from 1955 to 2025.
Showing 2,196 bulletins for CUMMINS
T2471 A
Feb 6, 2024
060000 ENGINE AND ENGINE COOLING
This TRP is being issued to update the Thermal Management System on some early built buses in order to be compatible with a harness that contains a fix for Controller Area Network (CAN) interference. This TRP authorizes certified repair loc
CMI-02012024-A
Feb 1, 2024
060000 ENGINE AND ENGINE COOLING
This is a representative communication from the Cummins producing plant to affected vehicle manufacturers regarding a potential issue on B6.7 EPA24/GHG24 - Oil Pressure Sensor In Range High (FCA 435 followed by 143 and 415)
C2690
Jan 30, 2024
060000 ENGINE AND ENGINE COOLING
This emission campaign is being issued to recalibrate the Engine Control Module (ECM) on certain 2021 B6.7 Hybrid bus engines. The campaign enables authorized repair locations to calibrate the engine control module (ECM) to the latest revis
T7007
Jan 25, 2024
060000 ENGINE AND ENGINE COOLING
This TRP is being issued to address Exhaust Throttle Valve (Exhaust Pressure Regulator) failures on certain L9 CM2350 L120C engines installed in HCE equipment. This TRP allows certified Cummins repair locations to remove the ETV/EPR (Cummin
TSB240020
Jan 19, 2024
110000 ELECTRICAL SYSTEM
This Technical Service Bulletin describes the verification and resolution of issue of vehicle not AC charging.
C2740 B
Jan 16, 2024
060000 ENGINE AND ENGINE COOLING
This campaign is being issued to recalibrate the Engine Control Module (ECM) on certain MY2018 - MY2021 ISX CM2250 SN engines. This campaign enables authorized repair locations to recalibrate the ECM to the latest revision. This calibration
C1990A
Jan 16, 2024
060000 ENGINE AND ENGINE COOLING
This Campaign is being issued to address a calibration update in certain ISL G CM2180 engines. This document enables authorized repair locations to calibrate the engine control module (ECM) to the latest revision available on QuickServeA? O
TSB220023
Jan 16, 2024
060000 ENGINE AND ENGINE COOLING
This Technical Service Bulletin describes the verification and resolution of issue of No AC voltage generation at rated RPM when configured to star (wye) terminal connection using an isolated neutral configuration on an HDKAG unit.
TSB240006
Jan 10, 2024
060000 ENGINE AND ENGINE COOLING
This Technical Service Bulletin describes the verification and resolution of issue of reduce the problem of external oil leak and prevent debris from entering through the crankshaft seal.
TSB240005
Jan 5, 2024
060000 ENGINE AND ENGINE COOLING
This Technical Service Bulletin describes the verification and resolution of issue of Engine Wiring Harness Malfunctions causing J1939 Datalink Faults.
TSB230242
Jan 4, 2024
060000 ENGINE AND ENGINE COOLING
This Technical Service Bulletin describes the verification and resolution of issue of an Air Compressor Mounting Flange that is Fractured or Loose.
Plant Comm JEP
Dec 22, 2023
060000 ENGINE AND ENGINE COOLING
JEP has identified an issue where TIR runout on the OD of the sensor plate was found to be outside of the total tolerance range resulting in FC778. To mitigate disruption at Navistar we are requesting to replace the sensor plate in engines
TSB230241
Dec 15, 2023
353000 EQUIPMENT:ELECTRICAL
This Technical Service Bulletin describes the verification and resolution of the high voltage AC/DC Inverter taking an extended amount of time to start communicating during cold start conditions with FC P120A.
C2740A
Dec 14, 2023
060000 ENGINE AND ENGINE COOLING
This campaign is being issued to recalibrate the Engine Control Module (ECM) on certain MY2018 - MY2021 ISX CM2250 SN engines. This campaign enables authorized repair locations to recalibrate the ECM to the latest revision. This calibration
C2752
Dec 14, 2023
060000 ENGINE AND ENGINE COOLING
This Campaign is being issued to address oil fill tube failures on certain X12 engines. This Campaign authorizes certified repair locations to replace the Oil Fill tubes on eligible units.
C2753
Dec 14, 2023
060000 ENGINE AND ENGINE COOLING
This Campaign is being issued to address potential engine oil overfill on certain X12 CM2350 X119B and CM2450 X137B engines due to a mismatch in the dipstick marks that can lead to engine damage. This field action authorizes certified repai
TSB230239
Dec 8, 2023
060000 ENGINE AND ENGINE COOLING
This Technical Service Bulletin describes the verification and resolution of engine protection shutdown time duration settings with new ECM calibration code revisions.
TSB130052
Dec 8, 2023
060000 ENGINE AND ENGINE COOLING
This Technical Service Bulletin describes the verification and resolution of increased number of standard fan support bearing failures by using new heavy duty tapered bearing fan support is a bolt on replacement for the standard support.
TSB230226
Dec 5, 2023
061560 ENGINE AND ENGINE COOLING:ENGINE:OIL/LUBRICATION:PRESSURE/TEMPERATURE SENSOR
This Technical Service Bulletin describes the verification and resolution of fault code FC 36 causing air-lock in hot ambient temperatures.
Plant Comm RMEP
Dec 1, 2023
060000 ENGINE AND ENGINE COOLING
The slit in the fuel hose P. No. 5261439 would lead to level 5 leaks could cause a critical quality issue while the engine is idling/accelerated or at Dyno. This is seen at multiple customers.
TSB230233
Dec 1, 2023
060000 ENGINE AND ENGINE COOLING
This Technical Service Bulletin describes the verification and resolution of fault codes FC 1921 and 1922 due to soot load calculation errors.
TSB230039
Nov 30, 2023
060000 ENGINE AND ENGINE COOLING
This Technical Service Bulletin describes the verification and resolution of issue of misfire fault codes without any audible misfire or performance loss (false misfire): FC5895, FC5896, FC5897, FC 5898, FC5899, FC5911, FC5914.
C2724
Nov 28, 2023
060000 ENGINE AND ENGINE COOLING
This campaign enables authorized repair locations to replace the SCR module on certain ISX15 CM2350 X114B MY2017 systems. The updated parts may improve the aftertreatments emissions performance.
ATC2443E
Nov 28, 2023
060000 ENGINE AND ENGINE COOLING
This ATC-TRP is being issued to address out of coverage failures as a result of dust ingestion through the air compressor inlet plumbing system on certain X15 engines. This is an update to the previously submitted communication.
TSB210078
Nov 21, 2023
060000 ENGINE AND ENGINE COOLING
This Technical Service Bulletin describes the verification and resolution of issue of ReConA? Engines Without Electronic Control Modules (ECM). This is an update to the previously submitted communication.