My 4.0 L V6 2002 Ford Explorer has this plastic casing on top of the intake manifold...some of the hoses (brake booster, etc) are actually connected to the plastic casing, now how can i replace my pcv valve?
The PCV Valve is not connected to your brake booster. If it were, engine oil and other debris would be pulled into the booster diaphragm and contaminate it and destroy it. Your PCV Valve is located on one of your Valve Covers. The Valve Covers are the long metal lids that run the full length of your engine on either side. Normally your oil cap is also located on one of the covers so you can fill your engine with oil when needed. The part that you are looking for is normally made of plastic or metal, and it is seated in a rubber grommet in one of the valve covers. You will normally find a single rubber hose coming from it leading to either your air cleaner or a port on the intake plumbing. Normally located before the throttle body. The PCV Valve itself, is a cylindrical object that is normally about 1/2 inch to 3/4 inch round and about an inch to 1.5 inches tall with a single, (sometimes double) port at the top. There is an object on your intake manifold, and sometimes also located below your throttle body, that does look like a PVC Valve. But its not. Its a simple vacuum port connector for access to manifold vacuum to operate things like your brake booster, and some of the emission control devices. I hope that helps you out. Good Luck!
