Kia Optima Hybrid: Hydraulic System / Valve Body Components and Components Location

Component Location

1. Automatic transaxle
2. Valve body assembly

Component

1. Pressure Control Valve(PCV) adjust screw
8. Underdrive Brake Control Solenoid Valve(UD/B)
2. Solenoid valve bracket
9. 26 Brake Control Solenoid Valve(26/B)
3. Oil temperature sensor
10. 35R Clutch Control Solenoid Valve(35R/C)
4. Line Pressure Control Solenoid Valve
11. Torque Converter Control Solenoid Valve (T/CON)
5. SS-A Solenoid Valve(ON/OFF)
12. LR/B pressure flow hole
6. SS-B Solenoid Valve(ON/OFF)
13. UD/B pressure flow hole
7. Overdrive Clutch Control Solenoid Valve(OD/C)
14. Accumulator 

Valve Body Flow

1. To cooler
9. Lubrication (Front)
2. From cooler 
10. 35R clutch pressure
3. Lubrication (Rear)
11. 26 brake pressure
4. Overdrive pressure
12. From oil pump
5. Reducing pressure (red2)
13. To oil pump
6. Reducing pressure (red1)
14. Underdrive pressure
7. Engine clutch pressure
15. Low & reverse pressure
8. Lubrication (Engine clutch)
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Valve Body Description and Operation

Description The valve body is essential to automatic transaxle control and consists of various valves used to control the oil feed from the oil pump. Specifically, these valves consist of pressure regulator ...

Valve Body Repair procedures

Removal     • 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 ...

Other information:

Kia Optima Hybrid (TF HEV) 2016-2020 Service Manual: Transaxle Control Module (TCM) Repair procedures


Inspection TCM Problem Inspection Procedure 1. TEST TCM GROUND CIRCUIT: Measure resistance between TCM and chassis ground using the backside of TCM harness connector as TCM side check point. If the problem is found, repair it. Specification: Below 1? 2. Test TCM Connector: Disconnect the TCM connector ...

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


Description The Rain sensing windshield wiper system is a wiper system that, in addition to providing normal wiper functions off, mist, manual low speed, manual high speed, and wash, provides automatic control of automatic intermittent automatic low, and automatic high speeds. When the ignition key is ...

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