toyota Workshop Repair Guides

Toyota Workshop Service and Repair Manuals

Positive Crankcase Ventilation|Testing and Inspection|Page 2175 > < Leak Detection Solenoid, Evaporative System|Testing and Inspection|Page 2171
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Positive Crankcase Ventilation: Testing and Inspection

INSPECTION

1. INSPECT PCV VALVE

a. Remove the PCV valve.

1. Disconnect the PCV hose from the PCV valve.
2. Remove the PCV valve.

b. Install a clean hose to the PCV valve.

c. Inspect the PCV valve operation.

1. Blow air into the cylinder head cover side, and check that air passes through easily.

CAUTION:  Do not suck air through the valve. Petroleum substances inside the valve are harmful.

2. Blow air into the air intake chamber side, and check that air passes through with difficulty.

d. Remove the clean hose from the PCV valve.
e. Reinstall the PCV valve.

Positive Crankcase Ventilation|Testing and Inspection|Page 2175 > < Leak Detection Solenoid, Evaporative System|Testing and Inspection|Page 2171