D21 Hardbody SE King Cab 4WD L4-2389cc 2.4L SOHC MFI (KA24E) (1997)
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Positive Crankcase Ventilation Valve: Testing and Inspection
PCV (Positive Crankcase Ventilation) VALVE
With engine running at idle, remove PCV valve from breather separator. A properly working valve makes a hissing noise as air passes through it. A
strong vacuum should be felt immediately when a finger is placed over the valve inlet.