toyota Workshop Repair Guides

Toyota Workshop Service and Repair Manuals

Positive Crankcase Ventilation > < Vacuum Check Valve, EGR|Testing and Inspection
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Vacuum Delay Valve: Testing and Inspection

1.

Ensure that air flows freely toward vacuum source side of valve and with resistance in reverse direction.

2.

If valve fails to perform properly, replace valve.

Positive Crankcase Ventilation > < Vacuum Check Valve, EGR|Testing and Inspection