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 » Vehicles Car Parts & Maintenance

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 »

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 » Vehicles Car Parts & Maintenance

The tools required to change the Dodge aftermarket headlights include needle nose pliers, a small straight blade screwdriver, a headlamp screwdriver, wire ties, masking tape and wire connectors. Use the masking tape to m... More » Science Physics Motion & Mechanics

An EGR valve helps to improve the performance and economy of a vehicle while reducing emissions by directing exhaust gases back into the cylinders of the vehicle for a second burn. The valve reduces nitrous oxide emissio... More »

To clean an idle air sensor control motor (often called the idle air sensor control valve), open the vehicle hood, unscrew the motor and remove it. Next, soak it in gasoline for approximately 5 minutes, then dry it with ... More » Vehicles Car Parts & Maintenance

A fuel injector is a valve equipped with electronic controls that receive data from a vehicle's computer. A fuel injection system changes the amount of fuel sent to a car's motor to prevent wasting gasoline. More » Vehicles Car Parts & Maintenance