Where is the PCV valve located on a 1995 Cadillac Eldorado Northstar engine?

The PCV valve on a 1995 Cadillac Eldorado with the Northstar engine is integrated into the intake manifold. It's not a separate, easily accessible valve like on many other engines. You won't find a readily identifiable, replaceable PCV valve as a distinct component. Instead, the PCV system's functionality is incorporated into the manifold design.