The procedure has been updated to include additional steps for verifying the software level on the vehicle...
Kenworth technical service bulletin 43-088 for 2020-2025 Kenworth T680, 2020-2025 Peterbilt 579 and 2020-2025 Peterbilt 389 and others.
- Bulletin number
- 43-088
- Component
- Engine
- Summary
- The procedure has been updated to include additional steps for verifying the software level on the vehicle electronic control unit (VECU2) and digital display (DD). Steps have also been added to the PACCAR Common Rail Injection 2 (PCI2) software verification.
Owners of these vehicles have filed 4 complaints in the engine category.
Vehicles covered
- Kenworth T680 2020-2025 202020212022202320242025
- Peterbilt 579 2020-2025 202020212022202320242025
- Peterbilt 389 2020-2025 202020212022202320242025
- Kenworth T880 2020-2025 202020212022202320242025
- Peterbilt 567 2020-2025 202020212022202320242025
- Peterbilt 520 2020-2025 202020212022202320242025
- Peterbilt 365 2020-2025 202020212022202320242025
- Kenworth W990 2020-2025 202020212022202320242025
- Peterbilt 367 2020-2025 202020212022202320242025
- Kenworth L770 2024-2025 20242025
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