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How do you fix an evaporative emission control system leak in Toyota Sienna?

Anonymous

∙ 11y ago

Updated: 8/1/2025

To fix an evaporative emission control system (EVAP) leak in a Toyota Sienna, first, conduct a thorough inspection of the EVAP system, including hoses, connectors, and the gas cap for any visible damage or loose fittings. Use a diagnostic scanner to identify trouble codes related to the EVAP system, which can help pinpoint the source of the leak. If a specific component is found to be faulty, such as a damaged hose or a failing purge valve, replace it. After repairs, clear any codes and perform a leak test to ensure the system is functioning properly.

AnswerBot

∙ 3d ago

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