Technical Service Bulletins
Search 172,063 manufacturer communications covering 879 vehicle makes from 1955 to 2025.
Showing 2,196 bulletins for CUMMINS
TSB190200-120220
Dec 2, 2019
060000 ENGINE AND ENGINE COOLING
This Technical Service Bulletin describes the verification and resolution of fault code 3749 with no other diesel exhaust fluid (DEF) system related fault codes. This is due to a potentially frozen aftertreatment DEF tank at colder ambient
TSB190203-120220
Dec 2, 2019
060000 ENGINE AND ENGINE COOLING
This Technical Service Bulletin describes the verification and resolution of engine crank but no start condition due to inducement restart counter being maxed out.
C2192
Nov 26, 2019
060000 ENGINE (PWS)
This campaign is being issued to address Variable Geometry Turbocharger Actuator failures on certain ISB6.7 CM2350 B101 engines in Transit Bus. This campaign authorizes certified repair locations to replace the Variable Geometry Turbocharge
C2189
Nov 26, 2019
110000 ELECTRICAL SYSTEM
This Campaign is being issued to address Variable Geometry Turbocharger Actuator failures on certain ISL9 CM2350 L101 and L9 CM2350 L116B engines in Fire Truck applications. This document authorizes certified repair locations to replace the
TSB190202-112520
Nov 25, 2019
060000 ENGINE (PWS)
This Technical Service Bulletin describes the verification and resolution of incorrectly replaced aftertreatment diesel exhaust fluid (DEF) dosing units. Multiple "trouble not found" aftertreatment DEF dosing units have been returned from t
ATC2196A
Nov 22, 2019
060000 ENGINE (PWS)
This Account Team Coverage is being issued to address suspect valve rocker assemblies on certain X15 CM2350 X114B/116B or ISX15 CM2350 X101 engines. This field action provides authorization for certified repair locations to replace the inta
ATC2078A
Nov 22, 2019
060000 ENGINE (PWS)
This Account Team Coverage is being issued to address suspect Valve Rocker Assemblies on certain ISX15 CM2350 X10 engines. The field action provides authorization for certified repair locatins to replace the Intake and Exhaust Valve Rocker
C2137
Nov 19, 2019
060000 ENGINE (PWS)
This Campaign is being issued to address Variable Geometry Turbocharger Actuator failures on certain ISL9 CM2350 engines in Transit Bus applications. This document authorizes certified repair locations to replace the Variable Geometry Turb
C2136
Nov 19, 2019
060000 ENGINE (PWS)
This Campaign is being issued to address Variable Geometry Turbocharger Actuator failures on certain ISL9 CM2350 engines in Transit Bus applications. This document authorizes certified repair locations to replace the Variable Geometry Turbo
TSB190188-110720
Nov 18, 2019
100000 POWER TRAIN
This Technical Service Bulletin describes availability and verification of multiple enhancements have been implemented in both the engine and transmission calibrations to improve drivability.
TSB190187-111820
Nov 18, 2019
100000 POWER TRAIN
This Technical Service Bulletin describes the verification and resolution of an incorrect transmission shift calibration in the Transmission Control Unit.
C2223
Nov 12, 2019
060000 ENGINE (PWS)
This field action is being issued to address potential concerns with coolant level sensors installed in certain L9 CM2350 L123B and B6.7 CM2350 B121B MY17 and MY18 engines. This Campaign authorizes certified repair locations to replace the
C2222
Nov 12, 2019
060000 ENGINE (PWS)
This In-Shop Campaign is being issued to address potential concerns with coolant level sensors installed in certain ISL9 CM2350 L101 engines. This In-Shop Campaign authorizes certified repair locations to replace the coolant level sensors.
C2221
Nov 12, 2019
060000 ENGINE (PWS)
This In-Shop Campaign is being issued to address potential concerns with coolant level sensors installed in certain ISB6.7 CM2350 B101 MY 2015 and 2016 engines. This In-Shop Campaign authorizes certified repair locations to replace the cool
TSB190143-111120
Nov 11, 2019
070000 FUEL SYSTEM, GASOLINE
This Technical Service Bulletin describes the verification and resolution of electrical shorts generated by metallic debris on the injector. A metallic sliver can be created when torquing the injector solenoid wires to the injector solenoid
TSB190194-111120
Nov 11, 2019
060000 ENGINE (PWS)
This Technical Service Bulletin describes the verification and resolution of work order image display issues created with INSITE? electronic service tool versions 8.5.0 and 8.5.1 viewed in ECM Image Analyzer in newer INSITE? electronic serv
TSB190193-111120
Nov 11, 2019
060000 ENGINE (PWS)
This Technical Service Bulletin describes the verification and resolution of INSITE? electronic service tool 5200 Error when using INLINE? 7.
TSB190190-111120
Nov 11, 2019
060000 ENGINE (PWS)
This Technical Service Bulletin describes the verification and resolution of exhaust leaks present on the outlet of the aftertreatment selective catalytic reduction (SCR) outlet flange when excessive stress is applied causing cracking or br
TSB180139-111120
Nov 11, 2019
080000 FUEL SYSTEM, DIESEL
This Techical Service Bulletin describes the verification and resolution of external aftertreatment diesel exhaust fluid leaks at aftertreatment diesel exhaust fluid pump filter housing vent. A hard interference between the diesel exhaust f
TSB101120-110620
Nov 6, 2019
060000 ENGINE (PWS)
This Technical Service Bulletin describes the verification and resolution of engine surge, usually with high counts of Fault Codes 1861, 2776 and/or 3847. The cause is found to be contamination of the air/fuel mixer and partial or complete
ATC1980C
Nov 5, 2019
060000 ENGINE (PWS)
This Account Team Coverage is being issued to upgrade certain ISX15 CM2350 High Pressure Fuel Pump Tappets. This field action provides authorization for certified repair locations to replace the brass roller pin tappets in the high pressure
C2207A
Nov 4, 2019
060000 ENGINE (PWS)
This campaign is being issued to address concerns with Viscous Vibration Dampers on certain B6.7 CM2350 B136C engines. This field action authorizes certified service centers to replace the vibration dampers and drive belt with new parts.
TSB190180-110420
Nov 4, 2019
060000 ENGINE (PWS)
This Technical Service Bulletin describes the verification and resolution of exhaust manifold gasket, exhaust manifold J seal, or exhaust manifold turbocharger flange gasket fluid leaks due to extended engine operation at low idle which cre
TSB190181-110420
Nov 4, 2019
060000 ENGINE (PWS)
This Technical Service Bulletin describes the verification and resolution of incorrectly installed differential pressor sensors. Differential pressure sensor will read negative pressure if mounted incorrectly and will cause inaccurately con
CMI-F7E7Q-11
Nov 1, 2019
060000 ENGINE (PWS)
This is a representative communication from the Cummins producing plant to affected vehicle manfacturers regarding a potential issue with suspected loose flywheel housing capscrew torque. The engine plant pursued corrective action with aff