PCV Valve
WARNING: This page is about a different car, the 1994 Plymouth Laser and 1994 Eagle Talon. However, it is still accessible from the selected car via links, so may be relevant.
Disconnect hose from PCV valve. Remove PCV valve from valve cover. Reconnect hose to PCV valve. Start engine and let idle. Put finger over opening of PCV valve. Ensure a vacuum is felt with finger. If vacuum is not felt, clean or replace PCV valve as necessary.