lexus Workshop Repair Guides

Lexus Workshop Service and Repair Manuals

Sensors and Switches - Emission Control Systems > < Positive Crankcase Ventilation Valve|Locations
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Positive Crankcase Ventilation Valve: Testing and Inspection

PCV Testing

- Remove PCV valve.
- Blow air into valve from cylinder head side.
- Air should flow freely.

PCV Testing

- Blow air through manifold side of valve.
- Air should flow with high resistance.
- Replace valve if desired results are not achieved, or if there is visible damage.

Sensors and Switches - Emission Control Systems > < Positive Crankcase Ventilation Valve|Locations