Technical Service Bulletins
Search 172,063 manufacturer communications covering 879 vehicle makes from 1955 to 2025.
Showing 2,196 bulletins for CUMMINS
C2079
Sep 25, 2017
060000 ENGINE AND ENGINE COOLING
This campaign is being issued to replace ISL G CM2180 engine piston rings and Exhaust Gas Recirculation (EGR) cooler in certain transit buses with factory installed steel pistons that may result in increased oil consumption. This campaign a
ATC1936A
Sep 22, 2017
072100 FUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMP
This Acount 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
ATC1943
Sep 22, 2017
072100 FUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMP
This Acount 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
C1941
Sep 19, 2017
060000 ENGINE (PWS)
This field action authorizes certified repair locations to recalibrate the ECM and upfit the unit with an improved SCR Catalyst on certain ISL9 CM2350 L101 engines installed in Transit Bus Applications. New SCRs delete the NH3 Sensor and mo
TSB170094-082920
Sep 19, 2017
070000 FUEL SYSTEM, GASOLINE
This Technical Service Bulletin describes the release of a new steel braided flexible polytetrafluoroethylene (PTFE) fuel line replacing the existing rigid metal line that can crack.
TSB170100-091520
Sep 19, 2017
116000 ELECTRICAL SYSTEM:IGNITION
This Technical Service Bulletin describes the introduction of a maintenance interval for the ignition coil extension to reduce unplanned down time.
ATC1939
Sep 15, 2017
072100 FUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMP
This Acount 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
ATC1940
Sep 15, 2017
072100 FUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMP
This Acount 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
TSB170045-091220
Sep 13, 2017
060000 ENGINE AND ENGINE COOLING
This Technical Service Bulletin describres the verification and resolution of repeat occurances of high crankcase pressure Fault Code 555 or 556 immediately after engine start up at ambient temperatures below freezing. Coating crankcase pre
ATC1795D
Sep 8, 2017
072100 FUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMP
This Account Team Coverage is being issued to upgrade ISX15 CM2350 High Pressure Fuel Pump Tappets. This field action provides authorization for certified repair locations to file claims for ONLY the listed parts needed to replace the brass
C1794F
Sep 8, 2017
072100 FUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMP
This Campaign 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 fuel pump wi
TSB170079-082820
Aug 31, 2017
356000 EQUIPMENT ADAPTIVE/MOBILITY
This Technical Service Bulletin announces that verification of aftertreatment component part numbers should be completed before ordering new parts as incorrect part numbers have been etched into aftertreatment components. This is an update
TSB170031-082320
Aug 29, 2017
080000 FUEL SYSTEM, DIESEL
This Technical Service Bulletin describes the verification and resolution of fault code 6255 present with no other fault codes and possible Diesel Exahust Fluid (DEF) lamp illumination caused by an engine control module calibration code iss
ATC1908A
Aug 22, 2017
118000 ELECTRICAL SYSTEM:SOFTWARE
This field action authorizes certified repair locations to re-calibrate the Electronic Control Module (ECM) on certain ISL CM2350 engines with calibration revisions released in Nov 2015 or later. Use the calibration revision history revisio
ATC1929A
Aug 22, 2017
980000 UNKNOWN OR OTHER
This Account Team Coverage is being issued to address certain B6.7 2017 engines in Blue Bird school buses that may experience a transmission fault code due to incorrect torque data broadcast on the J1939 datalink from the engine ECM. This
TSB170076-060820
Aug 18, 2017
353000 EQUIPMENT:ELECTRICAL
This Technical Service Bulletin describes the verification and resolution of fault codes 3838 and 6637 always inactive when viewed in Insite electronic service tool on engines equipped with multiplexed variable speed fan drive.
TSB170063-051220
Aug 16, 2017
063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
This Technical Service Bulletin describes the verfication and resolution of fault codes 3545 and 1887 caused by water or soap entering the exhaust system when vehicles are washed, contaminating the aftertreatment Nox sensor element or crack
C1847A
Aug 11, 2017
110000 ELECTRICAL SYSTEM
This Campaign is being issued to address a calibration update in certain ISB6.7 engines installed in Thomas Built buses. This document authorizes repair locations to recalibrate the Engine Control Module (ECM) to the latest revision. This
TSB170085-071420
Aug 10, 2017
080000 FUEL SYSTEM, DIESEL
This Technical Service Bulletin describes the verification and resolution of fault code 5867 (Aftertreatment Diesel Exhaust Fluid Dosing Unit Relay Feedback- Voltage Below Normal or Shorted to Low Source) often leading to unnecessary replac
T1892B
Aug 8, 2017
073000 FUEL SYSTEM, GASOLINE:FUEL INJECTION SYSTEM
This Temporary Repair Practice is being issued for low-mileage / low-hour fuel injector failures on certian ISM and N14 engines. This Temporary Repair Practice authorizes certified repair locations to replace up to five non-failed fuel inje
C1923
Jul 28, 2017
060000 ENGINE (PWS)
This Campaign is being issued to address a calibration update in certain ISB6.7 G CM2180 engines. This document enables authorized repair locations to re-calibrate the engine control module (ECM) to the latest revision.
TSB150163-072820
Jul 28, 2017
060000 ENGINE (PWS)
This Technical Service Bulletin describes the verification and resolution of certain engines possibly experiencing an issue with excessive lubricating oil consumption outside of the warranty period. This is an update to a previous communic
T1892A
Jul 21, 2017
070000 FUEL SYSTEM, GASOLINE
This Temporary Repair Practice is being issued for low-mileage / low-hour fuel injector failures on certian ISM and N14 engines. This Temporary Repair Practice authorizes certified repair locations to replace up to five non-failed fuel inje
TSB170089-071720
Jul 19, 2017
060000 ENGINE (PWS)
This Technical Service Bulletin describes the verification and resolution to the Allison transmission control module setting diagnostic trouble code P2637 (J1939 SPN 513 FMI 7) caused by an Engine Control Module (ECM) calibration code issue
C1919
Jul 18, 2017
060000 ENGINE (PWS)
This In-Shop calibration campaign is being issued to address maintenance lamp fault code 5383 for Diesel Particulate Filter (DPF) ash load on certain X15 CM2350 X114B/X116B engines. Certified repair locations are authorized to recalibrate t