Hyundai Santa Cruz Owners & Service Manuals

Hyundai Santa Cruz: Crankcase Emission Control System / Positive Crankcase Ventilation (PCV) Valve

- Description Pressure Regulating Valve (PRV) is installed to prevent the over pressure of combustion gas through the piston ring and onto the crankcase.

- Operation Principle
Engine ConditionStopIdle or DecelerationNormal operating conditionAccelerating in the high load area
Intake manifold pressure0HighAppropriateLow
PRV (Diaphragm)Full openA little openAppropriate openConsiderable open
Amount of blow-by gas0A littleMiddleA lot
Diaphragm component part


- Removal

1.Remove the cylinder head cover.(Refer to Engine Mechanical System - "Cylinder Head Cover")

- Installation

1.Install in the reverse order of removal.

    Schematic Diagrams
    - Schematic Diagram A : Crankcase pressure regulating valve (PRV)B : Breather hoseC : Intake hoseD : Air flowE : Intake manifoldF : Cylinder block ① Blow-by gas flow② Blow-by gas inflow to ...

    Crankcase Check Valve
    - Removal and Installation 1.Disconnect the battery (-) terminal. 2.Remove the engine room under cover.(Refer to Engine And Transaxle Assembly - "Engine Room Under Cover") 3.Remove the drive be ...

    Other information:

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