Escort L4-116 1.9L VIN 9 TBI (1987)
Positive Crankcase Ventilation: Testing and Inspection
PCV 2 - Low Speed PCV Check
^ Remove crankcase vent connector from side of air cleaner.
^ Place a stiff piece of paper over crankcase vent connector nipple. Wait for one minute.
^ Does vacuum hold paper in place?
YES -- Low-speed PCV system is OK.
NO -- GO to PCV3. See: PCV 3 - Crankcase Vent Connector Check