October 30: LEMON manuals on a temporary server, it is slow and having issues, download the manuals you need! Later in November we will switch back to the fast server.
System Inspection
- Warm engine to normal operating temperature, and operate it at idle. Disconnect Positive Crankcase Ventilation (PCV) valve with vent hose attached to valve cover. Block PCV valve opening and check for vacuum. If no vacuum is felt, check for collapsed line and blockage.
- Note direction of valve installation. Remove PCV valve. Blow air into upper port of valve. Air should not flow through valve from lower port. Blow air into lower port of valve. Air should flow from upper port. Replace valve as necessary.