Kia Optima: Emission Control System / Crankcase Emission Control System

Kia Optima DL3 2019-2020 Service and Repair Manual / Emission Control System / Crankcase Emission Control System

Schematic diagrams
Schematic Diagram

Repair procedures
Inspection
1.

After disconnecting the vapor hose from the PCV valve, remove the PCV valve.

2.

Reconnect the PCV valve to the vapor hose.

3.

Inspect the PCV valve operation.

(1)

Run the engine at idle.

(2)

Put a finger on the open end of the PCV valve.

(3)

Make sure that intake manifold vaccum can be felt.

  

The plunger inside the PCV valve will move back and forth at vacuum.

4.

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

Emission Control System
Service data Specifications Purge Control Solenoid Valve (PCSV) ▷ Specification Item Specification Coil Resistance (Ω) 22. ...

Positive Crankcase Ventilation (PCV) Valve
Description and operation Operation Principle Repair procedures Removal 1. Disconnect the vapor hose (A). 2. Remove the PCV val ...

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