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May 26, 2022 Service bulletin

Use for new vehicles (US21+OBD22

Mack technical service bulletin KC-2131 for 1990-1999, 2001 Mack Mack, 2016-2022 Mack Anthem (An) and 2018-2023 Mack Granite (GR) and others.

Bulletin number
KC-2131
Component
Engine and engine cooling
Summary
USE FOR NEW VEHICLES (US21+OBD22 Emissions) - Intermittent Diagnostic Trouble Codes U02A3, U029D, U029E

Owners of these vehicles have filed 12 complaints in the engine category.

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