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Service bulletins for the 2022 Kenworth T680

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

92 on file from NHTSA, as of 2026-10-19.

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Only bulletins with component: Fuel system are shown. Show all

Bulletins, newest first
43-0762026-01-06. Service bulletin. FUEL/PROPULSION SYSTEM. Certain vehicle model years 2020-2025 K270, K370, T270, T280, T370, T380, T480, T680, T880, W900 chassis have updated Greenhouse Gas (GHG) labels available for installation.
E3062023-11-10. Service bulletin. FUEL SYSTEM, DIESEL. PACCAR MX-11 & MX-13 EPA2021 Fuel Filter Drain & Change Info Incorrect fuel filter drain and replacement procedures on EPA21 MX-11 and MX-13 engines can result in the following Debris and contaminants introduced into the high-pressure fuel system. Denial of warranty claims for injector and/or fuel system faults. Misfire, rough running, engine knock, and other associated faults and symptoms. Correct fuel filter procedures are outlined in attached service documentation.
E2832023-07-05. Service bulletin. FUEL SYSTEM, GASOLINE; ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING. PACCAR MX Engine Model Year 2021B Engine Fuel Injector Connectors Not Seated Campaign - Certain Model Year 2022 chassis equipped with an Engine Model Year 2021B PACCAR MX-11 or MX-13 engine may experience partially seated fuel injector electrical connectors. This will result in an intermittent connection between the engine controller (PCI-2) and the affected injectors, resulting in injector and/or misfire fault codes. Injector connectors will be inspected and reseated. The expiration date of this campaign has been extended from 07/01/2023 to 01/01/2024.
E2902023-07-05. Service bulletin. FUEL SYSTEM, GASOLINE; ENGINE AND ENGINE COOLING. FIX-AS-FAIL Updated procedures and claim filing information. EPA2021 injector cleaning is referenced in RMI for certain injector faults. Complete the procedures in E290. Refer to E300 for in-tank additive information
03-087 (E295)2023-03-06. Service bulletin. FUEL SYSTEM, OTHER:FUEL FILTER; ENGINE AND ENGINE COOLING. Certain Model Year 2021-2024 chassis with PACCAR MX engines and optional fuel filter restriction virtual gauge may display incorrect restriction levels. The virtual gauge will be temporarily disabled until a revised sensor strategy is developed.

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.