Kia Optima: Repair procedures - Crankcase Emission Control 
		System - Emission Control System - Kia Optima TF 2011-2023 Service ManualKia Optima: Repair procedures

Inspection

1. After disconnecting the vapor hose from the PCV valve, remove the PCV valve. Visually check for a collapsed vapor hose or hose leaks.
2. Reconnect the PCV valve to the vapor hose.
3. Run the engine at idle, then put a finger over 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.

4. If the vacuum is not felt inspect PCV operation, if operating correctly clean or replace the vapor hose.

Schematic Diagrams
Schematic Diagram ...

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

See also:

Troubleshooting
Troubleshooting 1. The lamp switch inputs can be checked using the GDS. 2. To check the input value of lamp switch, select option "Body Control Module". ...

Side Airbag (SAB) Module. Components and Components Location
Components ...

Smart key
With a smart key, you can lock or unlock a door and even start the engine without inserting the key. The functions of the buttons on a smart key are similar to the remote keyless entry. (Refer ...

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