Kia Optima: Valve Body. Description and OperationDescription
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 valves, oil redirection valves, shift valves, and manual valves. The body also features electronic solenoid valves that ensure smooth gear changes.

Replacement
Valve Body. Components and Components LocationSchedule 1 - Normal Maintenance
I: Inspect and, if necessary, adjust, correct, clean or replace.
R: Replace or change. ...
Replacement
1.
Remove the rear wheel & tire.
Tightening torque:88.3
~ 107.9 N.m(9.0 ~ 11.0kgf.m, 65.1 ~ 79.6lb-ft)
...
Shift Lever. Components and Components Location
Components
1. Shift lever knob & boots assembly
2. Shift lever assembly
3. Control cable assembly
4. Manual control lever (T/M side)
...