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Home >> Mercury >> 1989 >> Tracer 2D Hatchback, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> System/Component Tests - EFI >> Emission Systems & Sub-Systems >> PCV

Emission Systems & Sub-Systems: PCV

Warm engine to normal operating temperature. Run engine at idle. Disconnect PCV valve together with ventilation hose from cylinder head cover. Block PCV valve opening with a finger and verify engine speed drops.