Van Wagon 2WD L4-2237cc 2.2L (4Y-E) (1989)
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Positive Crankcase Ventilation: Testing and Inspection
Fig. 10 PCV System Leak Areas
To check PCV valve, remove it from engine and alternately apply air to both sides of valve. Air should flow freely when applied from the crankcase end
of valve. Air should not flow when applied from the intake manifold side.
Check all hoses for deterioration, obstructions, wear or damage. Replace hoses as necessary. Ensure all hoses fit tightly.
