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February 27, 2023 Service bulletin

Certain Engine Model Year 2018 PACCAR MX-11 engines must have the crankcase pressure sensor replaced due...

Peterbilt technical service bulletin E298 for 2018-2019 Peterbilt 579, 2018-2019 Peterbilt 567 and 2018-2019 Peterbilt 520 and others.

Bulletin number
E298
Component
Engine and engine cooling: exhaust system: emission control: crankcase (PCV)
Summary
Certain Engine Model Year 2018 PACCAR MX-11 engines must have the crankcase pressure sensor replaced due to contamination during assembly.

Owners of these vehicles have filed 2 complaints in the engine category.

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