Operation CHARM: Car repair manuals for everyone.

Positive Crankcase Ventilation: Testing and Inspection

Crankcase Emission Control System

INSPECTION
1. Remove the positive crankcase ventilation valve.
2. Insert a thin stick into the positive crankcase ventilation valve from the threaded side to check that the plunger moves.




3. If the plunger dose not move, the positive crankcase ventilation valve is clogged. Clean or replace it.

INSTALLATION
Install the positive crankcase ventilation valve and tighten to the specified torque.

Tightening torque PCV valve: 8-12 NM (80-120 kg.cm, 6-8 lb.ft)