Kia Rio: Electric Oil Pump: Description

This transaxle has a standard Mechanical Oil Pump (MOP) linked to the input shaft to generates oil pressure when input shaft rotates.

But, this transaxle equipped with ISG system also has an Electric Oil Pump (EOP). Because the ISG system features Auto-Stop which starts and stops the engine as needed. The Auto-Stop feature prevents the Mechanical Oil Pump (MOP) from operating and building enough pressure for the transaxle to operate. When the vehicle comes to a stop with the engine off, Mechanical Oil Pump (MOP) cannot generate sufficient oil pressure during the initial startup or during low speed driving.

For these reasons, the Electric Oil Pump (EOP) takes on this role as an additional device that can generate the required oil pressure when the vehicle comes to a stop or during low speed driving. The Electric Oil Pump (EOP) supplies oil pressure to the Under Drive Brake (UD/B).

Starter: Removal and Installation

1. Disconnect the battery negative terminal. 2. Remove the air duct and air cleaner assembly. (Refer to EM group) 3. ...

Electric Oil Pump: Circuit Diagram

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See also:

Brake Booster Vacuum Pressure Sensor: Inspection
1. Check installation status of BBVPS and Vacuum hose or damage of vacuum hose. 2. Connect GDS to DLC (Data Link Cable). ...

Power Door Lock Switch Installation
1. Install the power window switch module. 2. Install the door trim panel after reconnecting the relevant connectors ...

ISG (Idle stop and go) system
Your vehicle may be equipped with the ISG system, which reduces fuel consumption by automatically shutting down the engine, when the vehicle is at a standstill. (For example : red light, stop sign ...