The PCV valve on a 1999 Pontiac Grand Am 2.4L is typically located on the
valve cover. However, the exact position on the valve cover can vary slightly. It's usually a small, plastic valve with a hose connected to it. You'll likely need to look closely at the valve cover for a small, capped fitting or a hose leading to the intake manifold.
To be certain, consult a repair manual specific to your 1999 Pontiac Grand Am 2.4L. A diagram in the manual will pinpoint its location. You can often find these online (some are free, some are paid) or at auto parts stores.
