Kia Optima: Inspection - Positive Crankcase Ventilation (PCV) Valve. Repair procedures - Crankcase Emission Control 
		System - Emission Control System - Kia Optima TF 2011-2025 Service ManualKia Optima: Inspection

1. Insert a thin stick (A) into the PCV valve (B) from the threaded side to check that there is the plunger movement.

If the plunger does not move (PCV valve is clogged), clean or replace the valve.


Removal
1. Disconnect the vapor hose (A). 2. Remove the PCV valve (B). ...

Installation
1. Installation is reverse of removal. PCV Valve installation: 1.9 ~ 2.8 N.m (0.19 ~ 0.29 kgf.m, 1.4 ~ 2.1 lb-ft) ...

See also:

Removal
1. Turn the ignition switch OFF and disconnect the battery negative (-) cable. 2. Disconnect the crankshaft position sensor connector (A). ...

Inspection
1. Immerse the thermostat in water and gradually heat the water. 2. Check the valve opening temperature. Valve opening temperature: 82 ± 1.5°C (17 ...

Disassembly
1. Disconnect the negative (-) battery terminal. 2. Remove the front tire (A) from hub assembly. Tightening torque : 10~15N.m (9~11kgf.m, 7.37~11lbf.ft ...

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