Purpose/Function
The oil pump generates hydraulic pressure in the oil line of the automatic transaxle together with supplying lubrication to powertrain related parts.
Construction
The oil pump has adopted a gear type with built-in outer and inner rotors.
The inner rotor engages with the torque converter and rotates in conjunction with the rotation of the torque converter.

Operation
When the inner rotor in the oil pump rotates, vacuum is generated in the outer rotor. As a result, ATF in the oil pan is suctioned to the oil pump. Further rotation of the inner rotor causes the inner rotor blades to push the ATF and discharge it from the oil pump.
The ATF discharge flow amount increases or decreases in proportion to the rotation speed of the inner rotor.

Oil Pump Removal/Installation [Skyactiv G 2.0]
Oil Pump [Skyactiv G 2.0]Manual Transaxle Removal/Installation [C66 M R]
Removal
1. Disconnect the negative battery cable..
2. Remove the plug hole plate..
3. Remove the front under cover No.2..
4. Remove the front under cover No.1..
5. Remove the splash shield..
6. Drain the manual transaxle oil..
7. Disconnect and/or remove the following parts in the engin ...
Lumber Support Motor Inspection
WARNING:
Handling a side air bag improperly can accidentally operate (deploy) the
air bag, which may seriously injure you. Read the service warnings/cautions
in the Workshop Manual before handling the front seat (side air bag integrated)..
1. Disconnect the negative battery cable ...
Rear Shock Absorber Removal/Installation
1. Remove in the order indicated in the table.
2. Install in the reverse order of removal.
1
Rear shock absorber upper nut
(See Rear Shock Absorber Upper nut Installation Note.)
2
Rear shock absorber lower bolt
3
...