Where is the PCV valve in a 1991 2.5 Jeep wrangler?
The PCV valve on a 1991 Jeep Wrangler 2.5L is located on the valve cover. It's usually a small, round valve with a hose attached to it. You'll need to look closely at the valve cover; it's typically near the back (firewall side) but its exact position might vary slightly.