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Buick TSB #21-NA-124

2004 Buick Century

TSB Document:

MC-10228888-0001.pdf

Affected Component: ENGINE AND ENGINE COOLING

Summary: This service bulletin provides diagnostic tips/steps on testing for possible EVAP leaks in the system to correct a customer concern of an MIL Illuminated with DTCs P0442 and/or P0455 Set.

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Date Published: DEC 14, 2022
NHTSA TSB #: 10228888

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