Since 1996, the purge control valve has been a standard component on all vehicles, playing an important role in managing your car´s emission. The purge valve regulates when hydrocarbons can enter the engine from the vapor canister. A malfunctioning purge valve can be dangerous to the proper functioning of your engine. Your car will alert you to a malfunctioning purge valve by illuminating the "Check Engine" light. Your car will also have a rough idle in the event of a failing purge valve. A failing purge valve must be removed as soon as possible to ensure safe driving.
Remove the ground cable from the battery negative lead with a socket wrench. Locate the air filter, located on the side of the air box in the engine compartment. Loosen the clips that hold the air filter to the side of the air box and then remove the filter and set it aside.
Locate the power steering tank below the alternator, in the engine compartment. Use a screwdriver to remove the screws that hold the tank to the frame of the car and move the tank to the side, allowing access to the purge valve.
Locate the purge valve on the side of the engine, underneath the power steering tank. Remove the hoses that attach to the purge valve from the engine. Push on the safety clip located on the side of the engine to remove the bigger hose and simply pull the smaller hose out from the purge valve. With the two hoses removed from the purge valve, use a screwdriver to remove the valve mounting screws and pull it out of the engine compartment.
