A PCV valve, or Positive Crankshaft Ventilation valve, is a component of an internal combustion engine that recirculates the air and gasoline which has slipped by the piston uncombusted, collecting in the crankcase. More »

A bad positive crankcase ventilation valve causes various symptoms, including ignition of the check engine light. Other symptoms include odd noises from the engine or oil on the air filter element. More »

To find the positive crankcase ventilation, or PCV, valve, open the hood of your car, and locate the crankcase. Find the fuel-intake manifold on the engine, and look for a black tube that connects it to the crankcase. Pu... More »

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To find the positive crankcase ventilation, or PCV, valve, open the hood of your car, and locate the crankcase. Find the fuel-intake manifold on the engine, and look for a black tube that connects it to the crankcase. Pu... More »

www.reference.com Vehicles Car Parts & Maintenance

When a positive crankcase ventilation, or PCV, valve goes bad, the valve may be plugged and can cause sludge to build in the engine, as well as oil leaks. A PCV valve can also go bad when there is water inside of it caus... More »

Replace the PVC valve on a vehicle by locating the valve and pulling it out with needle nose pliers. Put in the new valve by attaching it to the hose and snapping it into place. More »

www.reference.com Vehicles Car Parts & Maintenance

Flex-fuel technology refers to a type of vehicle that has an internal combustion engine that can run on either gasoline or up to E85 gasoline-ethanol blend. A sensor in the fuel system measures the ethanol content in the... More »

www.reference.com Vehicles Car Parts & Maintenance