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Hyundai TSB #21-EM-010H-1
2021 Hyundai Sonata
TSB Document:
Affected Component: ENGINE AND ENGINE COOLING
- Summary
- Certain 2020-2021 Sonata (DN8a) vehicles with 1.6T engines may exhibit a check engine light in conjunction with a popping noise, abnormal smell from the engine compartment, rough running, or reduced power due to a misfire.
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