PCV Valve: lifespan, maintenance and replacement

Typical lifespan: 20,000–50,000 miles.

Maintenance schedule

• Inspect PCV valve — Every 20,000 miles
• Replace PCV valve — Every 30,000–50,000 miles

Signs it needs replacing

• Rough idle
• Oil leaks
• Increased oil consumption
• Sludge buildup in engine

Tips

A cheap part that prevents expensive problems. Easy DIY replacement on most vehicles.