Technical Service Bulletins
Search 172,063 manufacturer communications covering 879 vehicle makes from 1955 to 2025.
Showing 2,196 bulletins for CUMMINS
ATC2497
Sep 23, 2021
060000 ENGINE AND ENGINE COOLING
This Account Team Coverage is being issued to address misfire related to intake valve recession on certain ISX12G and ISX12N engines.
T2467
Sep 23, 2021
100000 POWER TRAIN
This Temporary Repair Practice is being issued to address failures related to fault codes 3748, 3749, 6459, 6463, and/or 3361 on certain B6.7 CM2350 Hybrid Bus engines with Allison Transmission Systems only.
T2490
Sep 23, 2021
060000 ENGINE AND ENGINE COOLING
This Temporary Repair Practice is being issued to address certain Daimler (Freightliner, Thomas Built Bus, Western Star) vehicles with DEF header sensor failures in which DEF header replacement parts are not available. Due to DEF header par
C2245
Sep 23, 2021
060000 ENGINE AND ENGINE COOLING
This campaign is being issued to recalibrate the Engine Control Module (ECM) on certain MY2017 through MY2019, B6.7 CM2350 engines in Series-Parallel Hybrid bus applications with Allison Transmission systems. This campaign enables authorize
TSB190091
Sep 22, 2021
060000 ENGINE (PWS)
This Technical Service Bulletin describes the verification and resolution of fault codes 125, 222, 2191, 2973 and/or low power, white smoke, engine misfire, aftertreatment performance complaints as caused by incorrect pressure/ temperature
TSB210202
Sep 22, 2021
060000 ENGINE (PWS)
This Technical Service Bulletin describes the verification and resolution of engine shutdowns during an air handling performance test due to the Idle Shutdown time being less than the air handling performance test duration.
T2484
Sep 16, 2021
060000 ENGINE (PWS)
This Temporary Repair Practice is being issued to address certain vehicles with DEF header sensor failures in which DEF header replacement parts are not available. Due to DEF header part shortages, an ECM calibration is being released that
TSB190003
Sep 16, 2021
060000 ENGINE AND ENGINE COOLING
This Technical Service bulletin describes the verification and resolution of certain malfunctions due to incorrect switch input wiring on some engines. Certain engine control module switch inputs, such as the power take-off (PTO)/Accelerato
T2489
Sep 16, 2021
060000 ENGINE AND ENGINE COOLING
This Temporary Repair Practice is being issued to address certain Navistar (International and IC Bus) vehicles with DEF header sensor failures in which DEF header replacement parts are not available. Due to DEF header part shortages, an ECM
TSB210191
Sep 15, 2021
060000 ENGINE AND ENGINE COOLING
This Technical Service Bulletin describes the verification and resolution of coolant leaking from a joint with a spring clamp fastener. Remedy is to replace the spring clamp with a worm clamp fastener.
TSB200189
Sep 10, 2021
060000 ENGINE AND ENGINE COOLING
This Technical Service Bulletin describes the verification and resolution to address failed Diesel Exhaust Fluid urea quality sensor fault codes. The resolution is more fully described within the OEM Technical Information Bulletin. This is
ATC2485
Sep 9, 2021
060000 ENGINE AND ENGINE COOLING
This Account Team Coverage is being issued to address oil consumption above published specification limits on certain ISX12 G CM2180 EJ and ISX12N CM2380 X120B engines. In some cases, the oil consumption may result in knock faults, repeat m
TSB210192
Sep 3, 2021
060000 ENGINE AND ENGINE COOLING
This Technical Service Bulletin describes the verification and resolution of engine wiring harness malfunctions causing Datalink Fault Codes due to the use of diaelectric grease and water intrusion within the harness connector.
TSB210058
Sep 2, 2021
060000 ENGINE AND ENGINE COOLING
This Technical Service Bulletin describes the verification and resolution of engine wiring harness issues on J1939 datalink that are causing datalink related fault codes 1894, 2771, 3232, 3868, 3911, 4151, 4152, 4572, 4677, or 6688. This is
T2471
Sep 2, 2021
110000 ELECTRICAL SYSTEM
This Temporary Repair Practice 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.
ATC2394A
Aug 31, 2021
060000 ENGINE AND ENGINE COOLING
This Account Team Coverage is being issued to address leaks from aluminum oil cooler on certain L9N CM2380 L124B engines. This field action authorizes certified repair locations to replace the aluminum oil cooler with a stainless steel oil
TSB210081-082520
Aug 25, 2021
060000 ENGINE AND ENGINE COOLING
This Technical Service Bulletin describes the verification and resolution of an observed surge in engine speed while an aftertreatment diesel particulate filter regeneration is in progress in PTO mode.
TSB210182-082520
Aug 25, 2021
060000 ENGINE AND ENGINE COOLING
This Technical Service Bulletin describes the verification and resolution of the engine not responding to a request for speed and/or torque control after an ECM calibration code update. Root cause is due to OEM/equipment manufacturer or bo
ATC2333A
Aug 24, 2021
060000 ENGINE AND ENGINE COOLING
This ATC is being issued to offer eligible customers an opportunity to receive a refund instead of a fuel heating solution being developed by Cummins for future installation. Upon receiving a signed agreement from the appropriate party in a
TSB210183-082420
Aug 24, 2021
060000 ENGINE AND ENGINE COOLING
This Technical Service Bulletin describes the verification and resolution of FC 5655 due to the aftertreament system test failing Nox sensors on low hour aftertreatment systems. The system test fails the sensor rationality and directs the
TSB210152-081820
Aug 18, 2021
060000 ENGINE AND ENGINE COOLING
This Technical Service Bulletin describes the verification and resolution of an active Fault Code 8155 due to connectivity module firmware update completion issues. This is an update to a previously submitted communication.
ATC2424
Aug 17, 2021
060000 ENGINE AND ENGINE COOLING
This Account Team Coverage is being issued to address oil consumption above published specification limits which in some cases may result in knock faults, repeat misfire, engine miss, rough running, and/or low power. This ATC authorizes cer
C0439C
Aug 10, 2021
060000 ENGINE AND ENGINE COOLING
This Campaign revision extends the expiration date on this safety campaign and authorizes the field to apply service kit Part Numbers 4918250 and 4918251 to ISC/ISL cylinder blocks on engines that are on the suspect engine serial number lis
TSB210181-081920
Aug 9, 2021
060000 ENGINE AND ENGINE COOLING
This Technical Service Bulletin describes the verification and resolution of mis-calibrated turbocharger wastegate pneumatic actuators. This will cause low power condition and FC 2988 or 2989.