Kia Optima Hybrid: Crankcase Emission Control System / Positive Crankcase Ventilation (PCV) Valve Description and Operation

Kia Optima Hybrid (TF HEV) 2016-2020 Service Manual / Emission Control System / Crankcase Emission Control System / Positive Crankcase Ventilation (PCV) Valve Description and Operation

Operation Principle

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. Run the engine at idle, then put a finger over the open end of ...

Positive Crankcase Ventilation (PCV) Valve Repair procedures

Removal 1. Disconnect the vapor hose (A). 2. Remove the PCV valve (B). Inspection 1. Insert a thin stick (A) into the PCV valve (B) from the threaded side to check that the plunger movement.     ...

Other information:

Kia Optima Hybrid (TF HEV) 2016-2020 Service Manual: Description and Operation


Description Back view camera will activate when the backup light is ON with the ignition switch ON and the shift lever in the R position. This system is a supplemental system that shows behind the vehicle through the AV monitor while backing-up.     This system is a supplementary function only. ...

Kia Optima Hybrid (TF HEV) 2016-2020 Service Manual: Repair procedures


On-vehicle Inspection     • Check that the auxiliary 12V battery cables are connected to the correct terminals. • Disconnect the auxiliary 12V battery cables when the battery is given a quick charge. • Never disconnect the auxiliary 12V battery while the engine is running. Check The Auxiliary ...

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