Is the Alsvin’s PCV Positive Crankcase Ventilation valve o r engine breather system causing oil to enter the combustion chamber?

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Is the Alsvin’s PCV Positive Crankcase Ventilation valve o r engine breather system causing oil to enter the combustion chamber?

Many excessive oil consumption issues stem from faulty PCV systems. Is this a known weakness in Alsvin’s engine design?

Qalb E Momin asked on 11 Jun 2025 14:01:38 pm

1 Answer

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Car Mechanic Expert - on 11 Jun 2025 14:33:04 pm

This is a likely contributor. A faulty PCV valve can allow oil vapors o r even liquid oil into the intake manifold, where it gets burned during combustion.
Several owners report engine smoking on cold starts, a classic PCV-related symptom. However, Changan has not officially recalled o r revised the PCV design. Periodic inspection and cleaning o r replacement every 30,000–40,000 km is recommended.