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To unclog a PCV (Positive Crankcase Ventilation) system, start by inspecting and cleaning the PCV valve, which can often get stuck or clogged with sludge. If the valve is defective, replace it with a new one. Additionally, check the hoses connected to the PCV system for blockages or cracks, and clean or replace them as necessary. Regular maintenance, including oil changes, can help prevent future clogs.

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7mo ago

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