Where is the PCV valve located on 98 Ford Explorer with a 4.0L engine single overhead cam?
On a 1998 Ford Explorer 4.0L SOHC engine, the PCV valve is typically located on the valve cover. It's usually a small, round valve with a hose attached to it. It's often near the back of the valve cover, but its exact position can vary slightly. You'll likely need to consult a repair manual or look at diagrams online specific to your engine to pinpoint its precise location on your particular vehicle. A visual inspection of the valve cover and surrounding hoses is your best bet.