A testing procedure has been created for the coolant level sensor on model 520.
Peterbilt technical service bulletin 45-066 for 2017-2024 Peterbilt 579 and 2022-2023 Peterbilt 520.
- Bulletin number
- 45-066
- Component
- Engine and engine cooling
- Summary
- A testing procedure has been created for the coolant level sensor on model 520.
Owners of these vehicles have filed 2 complaints in the engine category.
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