Hyundai Equus: Repair procedures - Crankcase Emission Control System - Emission Control System - Hyundai Equus VI 2009-2021 Service ManualHyundai Equus: Repair procedures

After disconnecting the vapor hose from the PCV valve, remove the PCV valve.
Reconnect the PCV valve to the vapor hose.
Run the engine at idle, and put a finger on the open end of the PCV valve and make sure that intake manifold vacuum can be felt.
The plunger inside the PCV valve will move back and forth at vacuum.

If the vacuum is not felt, clean or replace the vapor hose.
    Schematic Diagrams
    Schematic Diagram ...

    Positive Crankcase Ventilation (PCV) Valve Description and Operation
    Operation Principle ...

    See also:

    Opening the Hood

    Detecting sensor
    The sensors are located inside of the rear bumper. Always keep the rear bumper clean for the system to work properly. ...

    Rear Differential Carrier Repair procedures
    Replacement 1. Drain off oil from Rear differential carrier. 2. Remove the propeller shaft. (Refer to Propeller Shaft Assembly - "Propeller Shaft") 3. Remove the rear drive shaft. (Re ...


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