2022 Kenworth T800B TSBs
20 Technical Service Bulletins across 7 categories
Software & Calibration
6 bulletinsThe verbiage in the Introduction section has been updated.
(KW) Certain T680 / T800 / T880 / W900 / W990 have updated GHG labels available for order and installation.
The attached procedures document has been updated with more detail and explanations.
Read full bulletin
This is not a stand-alone procedure. Cummins Quickserve troubleshooting will specify the use of these procedures while troubleshooting specific fault codes.
Bogie Crossmember Torque Value Update - Procedure has been updated to correct torque values.
FIX-AS-FAIL Updated procedures and claim filing information.
Read full bulletin
EPA2021 injector cleaning is referenced in RMI for certain injector faults. Complete the procedures in E290. Refer to E300 for in-tank additive information
FIX-AS-FAIL Updated procedures and claim filing information.
Read full bulletin
EPA2021 injector cleaning is referenced in RMI for certain injector faults. Complete the procedures in E290. Refer to E300 for in-tank additive information
Engine
6 bulletinsProcedure pictures updated for clarity.
Read full bulletin
When troubleshooting Cummins X15 fault codes 555 or 556, follow this additional testing, inspection, and documentation procedure to help identify the root cause of dusted engines. This is not a stand-alone process but must be used alongside Cummins troubleshooting steps. Cummins Quickserve will reference this bulletin for fault codes 555 or 556.
PACCAR will reimburse customers for the local purchase of in-tank fuel additive for EPA2021 compliant MX engines.
Read full bulletin
This is a one-time reimbursement. Only customers who have received E290 injector cleaning qualify for this reimbursement. See bulletin for limits and purchase tracking requirements.
Info Only - PACCAR is introducing Over-the-Air (OTA) software updates for engine MY17 and newer chassis equipped with...
Read full bulletin
Cummins X15, X12, ISX12, ISX12N, L9N, PX-7, and PX-9 engines The technology will leverage the existing Remote Diagnostic cs hardware to deliver secure software updates remotely. This will reduce downtime and save on maintenance costs for eligible vehicles.
Kenworth is providing guidance for PACCAR MX Engine Composite Oil Pan leak troubleshooting to avoid over-repairs and to...
Read full bulletin
provide warrantable repair guidance. Oil leaks, if not repaired, can lead to severe engine damage.
Model Year 2022 chassis with Cummins X15 engines may have inoperative auto-start systems due to a Cummins software update.
Read full bulletin
Refer to Cummins bulletin TSB210135.
nformation Only New Level 1 required tools are available to support MY21B MX engines.
Body & Paint
3 bulletinsNon-Safety Campaign - Convex mirrors are available.
Read full bulletin
Parts will be shipped to dealers.
Information Only - Rear axle Quarter Fenders with less than two inches of clearance between the top of the quarter...
Read full bulletin
fender and the bottom of the trailer/equipment are susceptible to damage. The lack of clearance could result in cracked/broken quarter fenders or complete separation if undetected or un-remedied.
Information Only Windshield washer pumps have a high No Trouble Found rate.
Read full bulletin
Washer pumps may fail to spray due to a clogged filter.
Air Bags & Safety
2 bulletinsSafety Recall Repair parts and procedures are now available.
Read full bulletin
On certain Kenworth model years 2018 through 2024 C500/T660/T800/W900 trucks with Sears Atlas 70 or 80 series seats, a spacer was installed on the seatbelt mounting assembly. In a severe collision, the ICP bar may fail, increasing the risk of injury.
Safety Recall Interim Notification On certain Kenworth model year 2018 through 2024 C500/T660/T800/W900 trucks with...
Read full bulletin
Sears Atlas 70 or 80 series seats, an additional spacer was installed on the seatbelt mounting assembly. In a severe collision, the ICP bar may fail allowing the seatbelt to slip, increasing the risk of injury. This bulletin will be updated when repair parts and procedures become available.
Other
1 bulletin"Kenworth: Dealers should check the chassis list and SIR weekly for VIN changes.
Read full bulletin
2 chassis added to the chassis list. Peterbilt: Dealers should check the chassis list and SIR weekly for VIN changes. 10 chassis added to the chassis list."
Brakes
1 bulletinCertain C500/T440/T470/T660/T680/T800/T880/W900 chassis may have air tank reservoirs that do not meet air volume...
Read full bulletin
requirements per FMVSS/CMVSS 121 Air Brake Systems. This bulletin will be updated when repair parts and procedures are available.
Steering
1 bulletinInformation Only Power steering reservoir cap may separate during removal when it is pulled upward instead of twisted.