Learn how to replace a PCV valve, prevent engine issues, and ensure smooth performance with AutoZone.

Learn how to diagnose and replace a failing PCV valve in your car, truck, or SUV with these step-by-step instructions from O’Reilly Auto Parts.

Jun 13, 2025 · Learn what a PCV valve is, how it works, where it's located, and the symptoms of a bad or clogged PCV valve. Find out when to replace it and how much it costs.

Dec 12, 2025 · Replacing a bad PCV valve won’t be too costly, and many owners can replace this part on their own. The part itself costs about $10 or $20, while the labor costs to replace the valve will be …

Jun 8, 2025 · Although some maintenance schedules include an interval for replacing the positive crankcase ventilation, or PCV, valve, others may not. In the latter case, a general recommendation is …

The customer wanted to replace the PCV valve and Spark plugs. I'll first show you how to replace the PCV valve without removing the intake manifold.

Jan 3, 2026 · Prevent costly engine damage. Our four-step guide makes replacing your PCV valve easy, ensuring proper engine ventilation and performance.

Oct 8, 2024 · The PCV (positive crankcase ventilation) valve is a one-way valve that recycles crankcase gases back into the engine to burn. A plugged PCV valve can result in a rough idle and poor mileage.

Oct 31, 2015 · Learn how to replace a PCV valve using my step-by-step guide. Get your up and running smoothly again.

Nov 28, 2025 · PCV valve replacement explained with signs when it goes bad, the best way to test it, and how to swap it out.