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East Coast Auto Sport

PCV Valve

Check the system that controls crankcase ventilation.

Engine inspection with diagnostic equipment
Service illustration · PCV Valve

Service overview

WHAT TO KNOW

The positive crankcase ventilation system routes combustion gases from the crankcase back into the intake to be burned. A restricted or leaking valve, diaphragm or hose can affect crankcase pressure and engine operation. Some engines integrate these parts into the valve cover.

When to have it checked

  • Whistling or rough idle
  • Oil leaks or increased oil use
  • Related check engine faults

Planning your service

Use the maintenance guidance for your engine. Oil leaks and rough running have several possible causes and should be diagnosed before replacing parts.

Step by step

WHAT TO EXPECT.

A typical pcv valve visit follows these steps. The exact work depends on your vehicle and inspection findings; repairs are discussed before proceeding.

  1. Inspect ventilation parts

    Check accessible crankcase ventilation hoses and connections.

  2. Assess the fault

    Test or inspect the valve, diaphragm or restrictions as appropriate.

  3. Repair the affected part

    Replace confirmed faulty components after approval.

  4. Recheck operation

    Verify connections, leaks and relevant running symptoms.

READY TO
GET STARTED?

Ask about pcv valve. Tell us your vehicle’s year, make, model, mileage and what you’ve noticed.

Call 973-485-6900 Text 973-390-0763