Positive Crankcase Ventilation Valve: Testing and Inspection

1NZ-FE EMISSION CONTROL: PCV VALVE (for Hatchback): INSPECTION

1. INSPECT VENTILATION VALVE SUB-ASSEMBLY

(a) Install a clean hose to the ventilation valve sub-assembly.

(b) Check the ventilation valve sub-assembly operation.

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





Text in Illustration





CAUTION:
* Do not suck air through the valve.
* Petroleum substances inside the valve are hazardous to your health.
If the result is not as specified, replace the ventilation valve sub-assembly.

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





Text in Illustration





CAUTION:
* Do not suck air through the valve.
* Petroleum substances inside the valve are hazardous to your health.
If the result is not as specified, replace the ventilation valve sub-assembly.

(c) Remove the clean hose from the ventilation valve sub-assembly.