Positive Crankcase Ventilation: Testing and Inspection

1. Check all hoses for general condition, restriction and routing. If a hose is oil saturated, cracked, hard from heat, restricted or mis-routed, repair/replace or rerout as needed.
2. Blow through hoses (7 and 7a) and orifice (8). Be sure all passages are open. Repair/replace any blocked passage.