Kia Optima Hybrid: Hydraulic System / Oil Pump Description and Operation

Description
Machanical Oil Pump (MOP)
The oil pump is built in the transaxle as a single unit with the 26 Brake (26/B) chamber. Rotation of the pump builds the hydraulic pressure needed for the lubrication of the various parts of the transaxle and operation of the clutch and brakes. The oil also circulates through the driving motor and the cooler.
Oil pump operation flow

1. Inlet (Oil filter) 
5. 35R/C (35R Clutch) operation pressure
2. Inlet (Valve body) 
6. Lubrication
3. Outlet 
7. E/C (Engine Clutch) Lubrication
4. 26/B (26 Brake) operation pressure
8. E/C (Engine Clutch) Operation pressure

Components and Components Location

Component Location 1. Automatic transaxle assembly 2. Machanical oil Pump assembly (MOP)3. Valve body assembly4. ATF Warmer5. Electric oil pump (EOP) ...

Oil Pump Components and Components Location

Component 1. Flange bolt2. Sleeve3. Reaction shaft support assembly4. Driven gear 5. Sleeve6. Driven gear 7. Oil pump housing ...

Other information:

Kia Optima Hybrid (TF HEV) 2016-2020 Service Manual: Engine Coolant Temperature Sensor (ECTS) Repair procedures


Inspection 1. Turn the ignition switch OFF. 2. Disconnect the ECTS connector. 3. Remove the ECTS. 4. After immersing the thermistor of the sensor into engine coolant, measure resistance between the ECTS terminals 3 and 4. 5. Check that the resistance is within the specification. TemperatureResistance ...

Kia Optima Hybrid (TF HEV) 2016-2020 Service Manual: High Voltage Shut-off Procedures


High Voltage Shut-off Procedures     Be sure to read and follow the “General Safety Information and Caution” before doing any work related with the high voltage system. Failure to follow the safety instructions may result in serious electrical injuries.     • High voltage components: ...

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