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

Expert DIY instructions for replacing the PCV valve. Maintain critical engine ventilation and avoid common performance issues.

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.

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 …

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 …

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 …

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

Jun 8, 2024 · Save precious time and money by learning how to DIY the replacement of a failing PCV valve through this informative guide.

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.

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.