How To Replace The PCV Valve On Your Vehicle
Every vehicle built over the last several years has a positive crankcase ventilation (PCV) valve. This plastic valve prevents toxic vapors from corroding the components under the hood, and from polluting the atmosphere. As great as this little part is, it does wear out. If your vehicle is leaking oil, making a whistling or whining noise, it may be time to replace the valve. If you want to start working on your car yourself, this guide explains how to replace the PCV valve in your vehicle.
Step 1: Collect the Needed Materials
Go to the auto parts store or the car dealership to pick up a new PCV valve according to your vehicle's specifications. Grab a set of needle nose pliers out of your garage. If you don't have any, go to the hardware store to pick up a pair.
Step 2: Find the Valve
Make sure that the engine is cool, by waiting to change the PCV valve for a couple hours after you turn off the vehicle. Lift the hood on your vehicle and secure it in place. Find the PCV valve on the crankcase. It is a plastic piece with a hose attached to it. On most vehicles, the valve is located on the top of the crankcase, near the manifold. However, some may have the valve installed on the sides.
Step 3: Take Off the Valve
Detach the hose and remove the valve cover with your fingers. Grasp the set of needle nose pliers with one hand. Use them to grab the valve and then pull it off.
Step 4: Put on the New Valve
Attach the hose to the new valve. Then push the valve into place with your fingers. If the valve is located in a difficult to reach area, use the needle nose pliers as an extension to push it into place, by grasping the valve between the pointy ends.
Dab a little bit of motor oil on the valve if it is stubborn and won't push into place. When you feel the valve snap into place, replace the valve cover.
Have the PCV valve checked occasionally by a professional. They can tell whether it is wearing out or needs replaced immediately. A good time to have this valve inspected is during an oil change or other routine maintenance at a place like John's Automotive Service. Share this with others who want to perform this car repair task on their own.