On a 1993 Ford Ranger with a 4.0L engine, the PCV (Positive Crankcase Ventilation) valve is typically located on the
valve cover. It's usually a small, usually black, plastic or metal valve with a hose connected to it. It's often near the back of the valve cover, but the exact position can vary slightly.
To be sure, you should consult a repair manual specific to your 1993 Ford Ranger 4.0L. A diagram showing the location of the PCV valve will greatly assist you. You can find these manuals online or at auto parts stores.
