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Home >> Nissan-Datsun >> 1998 >> Sentra Base >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - System & Component Tests >> Emission Systems & Sub-Systems >> Positive Crankcase Ventilation (PCV)

Positive Crankcase Ventilation (PCV)

With engine idling, remove PCV valve with hose connected. If a hissing noise and strong vacuum are not present at valve end, check hose and hose connections for leaks or obstructions. If hose is okay, replace PCV valve.

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