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The Positive Crankcase Ventilation (PCV) valve is an essential component of your vehicle’s emission control system, responsible for recirculating gases from the crankcase back into the combustion chamber to be burned again. Over time, the PCV valve can become clogged or stuck, leading to increased engine pressure, oil leaks, and reduced engine performance. Regularly inspect the PCV valve for signs of wear or blockage, and replace it as needed according to your vehicle’s maintenance schedule, typically every 30,000 miles. Maintaining a healthy PCV valve ensures efficient engine operation, reduces harmful emissions, and prevents potential engine issues caused by excessive pressure buildup.