Kia Optima Hybrid: Engine Mechanical System / Cylinder Head Assembly

Timing Chain Repair procedures

Removal     • Use fender covers to avoid damaging painted surfaces. • To avoid damage, unplug the wiring connectors carefully while holding the connector portion.     Mark all wiring ...

Valve Clearance Adjustment

Valve Clearance Inspection And Adjustment     Inspect and adjust the valve clearance when the engine is cold (Engine coolant temperature : 20°C (68°F)) and cylinder head is installed on the ...

Other information:

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

Description Windshield deicer system prevent windshield wiper from freezing in the winter season. It consists of deicer in the lower part of windshield, switch and relay. Body control module receives an input signal from the deicer switch, then controls relay. Operating condition is the same that of ...

Kia Optima Hybrid (TF HEV) 2016-2020 Service Manual: Heated Oxygen Sensor (HO2S) Description and Operation

Description Heated Oxygen Sensor (HO2S) consists of zirconium and alumina and is installed both upstream and downstream of the Catalytic Converter. It varies in accordance with the air/fuel ratio. The sensor must be hot in order to operate normally. To keep it hot, the sensor has a heater which is controlled ...