Ventilation Valve - Inspection

Lexus IS250 IS220d GSE20 ALE20 4GR-FSE EMISSION CONTROL

VENTILATION VALVE - INSPECTION

1. INSPECT VENTILATION VALVE
Ventilation Valve - Inspection. 4GR-FSE EMISSION CONTROL. Lexus IS250 IS220d GSE20 ALE20

Install a clean hose to the ventilation valve.

Check the ventilation valve operation.

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

  • NOTICE:
  • Do not suck air through the valve. Petroleum substances inside the valve are hazardous to your health.
Ventilation Valve - Inspection. 4GR-FSE EMISSION CONTROL. Lexus IS250 IS220d GSE20 ALE20

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


If the result is not as specified, replace the ventilation valve.

Remove the clean hose from the ventilation valve.