NHTSA ID Number: 11001094
Manufacturer Communication Number: TSB240096-05022024
TSB/Document Date: 2024-06-06
Summary
This Technical Service Bulletin instructs on the identification and correction for when the crankshaft tone wheel and capscrews have been improperly assembled, resulting in fault codes and / or engine noise. This is an update to a previously submitted communication.
If the PDF is very large, it may not load in the preview below.
Some older TSBs had multiple PDFs — visit the NHTSA Website to view all PDFs.
If the TSB PDF does not show, download or view it on the NHTSA Website.
Click on the (+) Plus Sign
Then Click on Associated Document(s)
- Advanced VCI Box, Industry-leading J2534 Pass-Thru...
- High-Speed OEM-Level Diagnostics & Programming: Unlock true...
- Coverage for 17 Car Brands & Ultra Reliability: Works...
- User-Friendly RLink Platform & Expert Support: TOPDON’s...
- 6.6 ft USB-C Cable & Portable Storage Case: The RLink J...
This product presentation was made with AAWP plugin.
Search NHTSA Database for Recalls
Search NHTSA Database for Vehicle Investigations
View Latest Vehicle Investigations
Search NHTSA Database for Vehicle Complaints
View Latest Vehicle Complaints
TSB/Document ID: TSB240096-05022024
Replacement Service Bulletin Number:
MFR Communication Date: 2024-05-03
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: ENGINE
MFR Component System:
MFR Component Subsystem:
Previous TSB | Next TSB |
6/4/24, 11:26 AM Crankshaft Tone Wheel Malfunctions
¢ | Technical Service Bulletin
Technical Service Bulletin: TSB240096 Released Date: 02-May-2024
Crankshaft Tone Wheel Malfunctions
Crankshaft Tone Wheel Malfunctions
Warranty Statement
The information in this document has no effect on present warranty coverage or repair practices,
nor does it authorize TRP or Campaign actions.
Contents
Product Affected
¢ L9CM2450 L126B
Issue Summary
Symptom:
¢ Engine noise
¢ Fault Code 689
¢ Fault Code 731
Root Cause:
¢ Crankshaft tone wheel to crankshaft capscrews back out, resulting in the crankshaft tone
wheel detaching from the crankshaft.
Verification
¢ Verify that the engine has experienced Fault Code 689, 731, or a bottom end engine noise.
Service Instructions
¢ Remove the lubricating oil pan.
°o See L9
CM2450 L126B Service Manual, Bulletin 5613077. Refer to Procedure 007-025 in
Section 7. (/qs3/pubsys2/xml/en/procedures/583/583-007-025.html)
¢ Verify the crankshaft tone wheel capscrew torque.
© See L9 CM2450 L126B Service Manual, Bulletin 5613077. Refer to Procedure 001-071 in
Section 1. (/qs3/pubsys2/xml/en/procedures/583/583-001-071.html)
¢ If crankshaft tone wheel capscrews are found to be loose, proceed to Resolution section.
Resolution
https://quickserve.cummins.com/qs3/pubsys2/xml/en/tsb/2024/tsb240096.html 1/3
6/4/24, 11:26 AM Crankshaft Tone Wheel Malfunctions
¢ If the crankshaft tone wheel and capscrews are still in place, replace the crankshaft tone
wheel capscrews only. See L9 CM2450 L126B Service Manual, Bulletin 5613077. Refer to
Procedure 001-071 in Section 1. (/qs3/pubsys2/xml/en/procedures/583/583-001-071.html)
¢ If the crankshaft tone wheel capscrews have backed out and the crankshaft tone wheel has
come off, then inspect/replace the following components:
¢ Cylinder Block and Crankshaft
© Visually inspect the cylinder block for damage.
° If cylinder block and/or crankshaft is damaged and repair is being made under warranty,
contact Cummins Care at 1-800-CUMMINS™ for assistance.
¢ Crankshaft
© If the tone wheel capscrews have been sheared off, then the crankshaft must be
replaced.
© If the crankshaft is replaced, then the main bearing and connecting rod bearings and the
crankshaft tone wheel and capscrews must also be replaced.
© See L9 CM2450 L126B Service Manual, Bulletin 5613077. Refer to Procedure 001-016 in
Section 1. (/qs3/pubsys2/xml/en/procedures/583/583-001-016.html)
¢ Piston Cooling Nozzles
© Visually inspect the piston cooling nozzles for damage.
© If any piston cooling nozzles are damaged or missing, then those power cylinders must
be inspected, and the damaged piston cooling nozzle(s) must be replaced.
°o See L9 CM2450 L126B Service Manual, Bulletin 5613077. Refer to Procedure 001-046 in
Section 1. (/qs3/pubsys2/xml/en/procedures/583/583-001-046.html)
¢ Piston(s)
© Visually inspect the number 6 piston for damage and replace if any damage is found.
°o See L9 CM2450 L126B Service Manual, Bulletin 5613077. Refer to Procedure 001-043 in
Section 1. (/qs3/pubsys2/xml/en/procedures/583/583-001-043.html)
¢ Connecting Rod(s)
© Visually inspect the number 6 connecting rod for damage replace if any damage is
found.
© See L9 CM2450 L126B Service Manual, Bulletin 5613077. Refer to Procedure 001-014 in
Section 1. (/qs3/pubsys2/xml/en/procedures/583/583-001-014.html)
¢ Cylinder Liner(s)
© Visually inspect the number 6 liner for damage and replace if any damage is found.
°o See L9 CM2450 L126B Service Manual, Bulletin 5613077. Refer to Procedure 001-028 in
Section 1. (/qs3/pubsys2/xml/en/procedures/583/583-001-028.html)
¢ Camshaft
© Visually inspect for damage and replace if any damage is found.
© See L9 CM2450 L126B Service Manual, Bulletin 5613077. Refer to Procedure 001-008 in
Section 1. (/qs3/pubsys2/xml/en/procedures/583/583-001-008.html)
¢ Cylinder Block Stiffener Plate
© Visually inspect for any damage and replace if any damage is found.
https://quickserve.cummins.com/qs3/pubsys2/xml/en/tsb/2024/tsb240096.html 2/3
6/4/24, 11:26 AM Crankshaft Tone Wheel Malfunctions
© See L9 CM2450 L126B Service Manual, Bulletin 5613077. Refer to Procedure 001-089 in
Section 1. (/qs3/pubsys2/xml/en/procedures/583/583-001-089.html)
¢ Lubricating oil and lubricating oil filter must be replaced.
© Cut open the lubricating oil filter.
°o See L9 CM2450 L126B Service Manual, Bulletin 5613077. Refer to Procedure 007-083 in
Section 7. (/qs3/pubsys2/xml/en/procedures/583/583-007-083.html)
¢ Crankshaft Position Sensor must be inspected and replaced if damaged.
° See L9 CM2450 L126B Service Manual, Bulletin 5613077. Refer to Procedure 019-365 in
Section 19. (/qs3/pubsys2/xml/en/procedures/583/583-019-365.html)
Document History
2024-4-25 Module Created
2024-5-2 Added crankshaft to cylinder block section.
Last Modified: 02-May-2024
https://quickserve.cummins.com/qs3/pubsys2/xml/en/tsb/2024/tsb240096.html 3/3
- OBD2 Bluetooth Scanner Lifetime Update: Ediag Elite offers revolutionary Advantage Lifetime Updates with unlimited access to the superior 15+ reset service, bidirectional testing and full system diagnostics.The Ediag Elite is an excellent Bluetooth OBD2 scanner diagnostic tool ideal for DIY's and private car owners.
- Bidirectional Test for Quickly Locating Problems: The Bidirectional Scan tool allows you to send commands directly from your smartphone to your vehicle for active testing. This feature helps to quickly narrow down problems such as air conditioning clutches, windows, doors, sunroofs, etc., reducing diagnostic time for mechanics and helping DIY users locate faults more easily. In addition, Ediag Elite provides fault analysis and repair guidance to help you solve problems efficiently.
- 15+ Maintenance Resets: The current version introduces 15+ popular special features: Oil Reset, Headlight Matching, Bleeding Reset, TPMS Reset, BMS Reset, Gear Box Relearn, Throttle Learning, Injector Coding, SAS Reset and more special functions in system diagnose menu. These functions make it easy for owners to carry out the necessary maintenance and servicing, ensuring that your vehicle stays in top condition, prolonging its service life and preventing common problems and breakdowns. Note: The Special function vary by model& year, Reach us check compatibility.
- Wide Compatibility CANFD & FCA
Autoauth: Compatible with GM, Ford, Toyota, Chrysler, Honda, Mazda, Nissan, Mitsubishi, Hyundai, KIA with standard OBD2 port from 1996 to newer. More car brands and features will be released gradually. Newest Ediag Elite scanner supports CANFD Protocol and FCA cars. Note: Coverage may vary on different vehicle by model& year ,Please contact us to confirm compatibility before purchase. - Perfect for Monitoring The Health of Your Vehicle: Ediag Elite is designed to make vehicle maintenance simple and efficient. With intelligent Auto VIN quick recognition, it is easy to connect to your car without the need for manual input. Real-time data is visualized in a variety of formats, including graphs, numeric, meter displays and clear 4-in-1 data charts, allowing you to effortlessly monitor real-time data. Data logging/reporting is available for playback and further analysis
- No Annual Fees & 2026 Upgraded CAN FD: Why pay $199/year or more for updates? The 2026 newest Kingbolen K7 obd2 scanner features have been upgraded to Lifetime Updates without subscription fees, saving you significant costs in the long run. K7 scan tool also adds the CAN FD protocol for the latest GM models (2019+), enabling faster data transfer, reducing the risk of undetected errors
- 2026 Newest Top-tier Car Scanner: Kingbolen K7 diagnostic scan tool is equipped with most capabilities for daily repair/maintenance: Wireless diagnosis via Bluetooth, Bidirectional Test, ECU Online/Offline Code, 31+ Resets, PMI for Ford, Lincoln, Mazda, Global version for 100+ brand vehicles and 17 languages, no area limit, FCA AutoAuth
- OE-Level Full Systems Scan Tool: K7 professional diagnostic scanner with Auto Vin can do one-click to scan ECUs on most of vehicles, like pcm, ecm, eps, bcm, tpms, sas, a/c system... to read/clear code, view live data, freeze frame, read ecu info. 4-in-1 data stream graphics can make data viewing more intuitive. Detailed diagnostic reports will help you easily master the car situation as it can be shared by bluetooth or email! Adding workshop information can help your customers to know more
- Bidirectional Test/Active Test & ECU Code: Stop guessing and start fixing. Bidirectional scan tool Kingbolen K7 can perform real active test that can send commands to the vehicle's ECU to drive the actuators to work, like window, rear mirrors, sunroof, door, solenoids, wipers, headlamp, etc, helping you quickly find out bad parts and pinpoint faulty issues. K7 bidirectional scanner will be a good choice to save money and time on car repairs when performing complex maintenance and repair
- 31 Reset Functions: Avoid expensive dealership visits for simple services. Experience tells us that just a small repair service may cost a lot of money. Kingbolen K7 is a professional diagnostic scanner with 31 common maintenance services like Oil /SAS/EPB/TPMS Reset, Battery Matching, ABS Bleeding, Injector Code, etc. It effectively handles most of the car reset and relearning jobs, perfect for experienced DIYers and mechanics. Note: Functions in the menu vary across vehicles. Kindly check the compatibility before purchase
- WHY S608 STANDS OUT:2026 Kingbolen S608 is the only scanner <200 bucks that offers powerful active tests on Engine, ABS, SRS, and Transmission systems. Offers 9 resets,Covers 110+ global brands with a 6.2'' larger touchscreen
- KINGBOLEN'S NEW BIDIRECTIONAL SCAN TOOL: As the 2026 upgraded version of S600, our Newest S608 obd2 scanner has the powerful Bi-directional Control on Engine, ABS, SRS, and Transmission systems. It can send commands to the ECUs of actuators for functional tests and work status checks, such as ABS, fuel injectors, adjusting throttle, coolant pumps, EVAP test, fuel trim reset, etc. No more Guesswork. Quickly identify problem components without teardown, get fuss-free results in seconds.
- 【9 HOT RESET SERVICES CAR SCANNER】Tired of costly mechanic trips for common resets? The Kingbolen S608 obd2 scanner lets you do it yourself, even for beginners—quickly and effortlessly! It offers 9 hot reset functions: Oil/EPB Reset, ABS Bleeding, SAS Calibration, DPF Regeneration, Injector Coding, BMS Matching, Throttle Adaptation, Gear Learning. Stop paying mechanics for 5-minute jobs. Save hundreds per year! 🚗*Function vary from vehicle models. reach us to check compatibility firstly!
- 【4 SYSTEM DIAGNOSTIC TOOL + FULL OBDII FUNCTIONS】Kingbolen S608 is an OBDII scanner and 4 systems diagnostic tool made for home mechanics, DIYers, and professionals. You can access Engine, ABS, SRS, Transmission fault codes, track live data in graphs, and onboard DTC library lookup to find the right troubleshooting procedure, and diagnose with full 10 OBD2 test modes to fix most of emission issues. Give your aging cars routine maintenance to avoid costly repairs, a breakdown, or even a crash.
- 【NEW CAN FD, FCA/RENAULT SGW, 140+ BRANDS】Kingbolen S608 scanner for car supports 140+ vehicle brands, 100,000+ models, 28 languages and can be used worldwide. S608 stays up-to-date with modern vehicles, allows secure access to 2017+ FCA cars and 2015+ Renault cars (📢*Need to purchase an AutoAuth/Renault account by yourself), and supports the latest CAN-FD protocol for 2019+ GM/Chrysler, enabling 2X faster data transfer and more precise diagnostics. 🚗*Check compatibility before purchase.
This product presentation was made with AAWP plugin.
Last update on 2026-05-12 / Affiliate links / Images from Amazon Product Advertising API