Kia Optima: Repair procedures - Crankcase Emission Control 
		System - Emission Control System - Kia Optima TF 2011-2026 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:

Compass Mirror. Description and Operation
Function 1. Push the A button lower of the rear view mirror to turn on the function of the compass mirror so that displays a sign of a direction on the small board in the upper-righ ...

Installation
1. Hold the timing chain, and place the intake CVVT & camshaft assembly. 2. Place the exhaust CVVT & camshaft assembly after releasing the ratchet of the timi ...

Rear parking assist system
The rear parking assist system assists the driver during backward movement of the vehicle by chiming if any object is sensed within a distance of 120 cm (47 in.) behind the vehicle. This system ...

Copyright www.kiopman.com 2026