"RMI procedures have been updated to reduce the risk of progressive damage to the rocker arms
Kenworth technical service bulletin E335 for 2022-2023 Kenworth T680, 2022-2023 Peterbilt 579 and 2022-2023 Peterbilt 389 and others.
- Bulletin number
- E335
- Component
- Engine
- Summary
- "RMI procedures have been updated to reduce the risk of progressive damage to the rocker arms. Certain EPA 2021 compliant PACCAR MX-13 engines were built with intake valve springs that could fail. This failure can cause significant damage to the engine. New intake valve springs will be installed. Intake Valve Spring inventory is currently limited and has been placed on reserve status. Dealers must submit a TCS365 case as shown. PACCAR Parts continues to receive regular inventory shipments to the PDCs.["
Owners of these vehicles have filed 1 complaints in the engine category.
Vehicles covered
- Kenworth T680 2022-2023 20222023
- Peterbilt 579 2022-2023 20222023
- Peterbilt 389 2022-2023 20222023
- Kenworth T880 2022-2023 20222023
- Peterbilt 567 2022-2023 20222023
- Peterbilt 365 2022-2023 20222023
- Kenworth W990 2022-2023 20222023
- Peterbilt 367 2022-2023 20222023
VIN decoder
See the problems and recalls for an exact car
Buying a used Kenworth T680?
Check the exact car before you pay: accidents, salvage or flood titles, odometer readings and previous owners.
Check its history