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Receive Up To 30% Off Your Online Purchase Of Select Parts And Accessories
Use promotional code MMJ30 at checkout to receive 30% off the following categories: Select Brake Parts, Select Hi-Performance and Truck Accessories, Batteries, Water Pumps, Belts, A/C Parts, Starters, Alternators, Fuel Pumps, Radiators, Radiator Fans, Thermostats, Caps & Clamps, Clutches, Spark Plugs, Plug Wires, Chassis, CV Axles, Batteries, Battery Chargers & Booster Cables, OE Locks, Rack & Pinons, Window Motors, RainX Wipers, Appearance Chemicals, Car Wash Accessories, Floor Mats, Lift Equipment, Hand Tools, Travel Accessories, Outdoor Lifestyle, Towing, Car Covers, Seat Covers, Wheel Covers, Body Repair, Collectibles and Apparel.

Use promotional code MMJ20 at checkout to receive 20% off the following categories: Shocks & Struts, Ignition, Air Filters, Oil Filters, Bearings & Seals and Engine Parts.

Offers not valid in combination with any other discounts, promotions or items already on sale. Not valid on gift cards, special orders, installed merchandise, commercial or fleet purchases. Those products that are included in these offers will be displayed in product search results and product detail pages. Excludes the following brands: Champion, Powerstop, Razor, Traxxas, Superchips, Hypertech, Edge, Bully Dog, Diablo, Edelbrock, Holley, NOS, Proform, Specialty Auto, Autometer, Accel, K&N, Kenwood, Pioneer, Sony, Thule, Thule Karrite, JVC, Flowmaster, Hurst, B&M, MSD, Moog, Wagner, Philips and BBK Performance. Valid online until 2:59 am EST on 8/8/17.

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PCV Valve

 

PCV Valves

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.

What is a PCV Valve and how does it work

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 the Symptoms of Failure?

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

What are the Implications of Failure?

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

How Difficult is the Install?

Difficulty Rating:

Note:

  • Installation difficulty varies by vehicle

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