PCV 2 - PCV System Check

^ START engine and bring to normal operating temperature.

^ Remove the corrugated hose from the oil separator nipple.

^ Place a stiff piece of paper over the nipple end. Wait one minute.

^ Does vacuum hold the paper in place?

YES -- System is OK. Reconnect hose. Go to diagnostic routines for other possible causes of vehicle symptoms.

NO -- System is plugged or Evaporative Emission Valve is leaking (if equipped). Go to PCV3. PCV 3 - Evaporative Emission System Check