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PCV VALVE

PCV valves are key to keeping your vehicle running trouble free. The PCV valve is a spring-loaded valve with a specific orifice size designed to restrict the amount of air that's siphoned from the crankcase into the intake manifold.

INSTALL LEVEL OF DIFFICULTY

EASY

What is it?

  • A Positive Crankcase Ventilation valve is an element of your vehicles emission system.

How Does It Work?

  • The PCV valve connects via a hose to the crankcase.
  • It moderates dirty air and gases from crankcase.
  • The leftover material is then returned to intake manifold to be burned again in the combustion chambers.

How Is It Made?

  • Most are drawn, stamped or molded material that has a valve that controls the flow from the crankcase to the air filter box.

Why Does It Fail?

  • Over a period of time, 12 months or 12,000 miles, the valve can be become clogged and or restrictive.
  • It comes off the crankcase and release fumes that can be corrosive, sticky and or carbon filled. All can lead to restriction and or failure.

What are Symptoms of Failure?

  • Rough idle
  • Tough starting
  • Poor fuel economy
  • Check engine light

What Are the Consequences of Failure?

  • No start
  • Sudden engine failure
  • Poor fuel economy
  • Failed emissions

If you have questions or concerns about pcv valves or any of your vehicle’s components, come into your local Pep Boys where we can answer any question, help you find any part, or perform any vehicle service you might need.