Kia Rio: Engine And Transaxle Assembly / Engine And Transaxle Assembly

Kia Rio 2017-2020 YB Service Manual / Engine Mechanical System / Engine And Transaxle Assembly / Engine And Transaxle Assembly

Repair procedures

Use fender covers to avoid damaging painted surfaces.

To avoid damage, unplug the wiring connectors carefully while holding the connector portion.


Mark all wiring and hoses to avoid misconnection.

To release the fuel system pressure before removing the engine assembly, start the engine with the fuel pump relay removed. And then turn off the ignition switch after engine stops.


Remove the engine cover.

(Refer to Engine And Transaxle Assembly - "Engine Cover")


Remove the air cleaner assembly.

(Refer to Intake and Exhaust System - "Air Cleaner")


Remove the battery and battery tray.

(Refer to Engine Electrical System - "Battery")


Remove the engine room under cover.

(Refer to Engine and Transaxle Assembly - "Engine Room Under Cover")


Drain the engine coolant.

(Refer to Cooling System - "Coolant")


Recover the refrigerant and then disconnect the suction line and discharge line from the compressor.

(Refer to Heating, Ventilation Air conditioning - "Compressor")


Remove the transaxle wire harness connectors and control cable from the transaxle.

(Refer to Manual Transaxle System - "Manual transaxle")


Disconnect the fuel hose (A), purge control solenoid valve (PCSV) hose (B).


Disconnect the radiator upper hose (A).


Disconnect the radiator lower hose (A).


Disconnect the brake booster vacuum hose (A) and heater hoses (B).


Disconnect the automatic transaxle fluid (ATF) cooler hoses. (A/T only)


Disconnect the control wiring harness connectors and fasteners and remove the wiring harness protectors from the engine and transaxle.


Disconnect the fuse box wiring cable (A) and front connector (B).


Disconnect the transaxle ground cable (A).


Remove the front muffler.

(Refer to Intake And Exhaust System - "Muffler")


Remove the roll rod bracket (A).

Tightening torque

Bolt (B) :

49.0 - 63.7 N·m (5.0 - 6.5 kgf·m, 36.2 - 47.0 lb·ft)

Bolts (C) :

107.9 - 127.5 N·m (11.0 - 13.0 kgf·m, 79.6 - 94.0 lb·ft)


Remove the roll rod mounting support bracket (A).

Tightening torque :

49.0 - 68.6 N·m (5.0 - 7.0 kgf·m, 36.2 - 50.6 lb·ft)


Remove the sub frame.

(Refer to Suspension system - "Sub frame")


Support the engine and transaxle assembly with a lift table.


Disconnect the engine ground cable (A).


Remove the engine mounting support bracket (A).

Tightening torque

Nut (B) :

88.2 - 107.8 N·m (9.0 - 11.0 kgf·m, 65.1 - 79.5 lb·ft)

Bolt and nuts (C) :

58.8 - 73.5 N·m (6.0 - 7.5 kgf·m, 43.3 - 54.2 lb·ft)


Remove the service cover (A).


Remove the transaxle mounting bolts (A).

Tightening torque :

107.9 - 127.5 N·m (11.0 - 13.0 kgf·m, 79.6 - 94.0 lb·ft)


Remove the engine and transaxle assembly (A) by lifting vehicle.


When remove the engine and transaxle assembly, be careful not to damage any surroundings parts or body components.


Install the other parts in reverse order of removal.

Perform the following :

Adjust a shift cable.

Refill engine with engine oil.

Refill a transaxle with fluid.

Refill a radiator and a reservoir tank with engine coolant.

Place a heater control knob on "HOT" position.

Clean battery posts and cable terminals and assemble.

Inspect for fuel leakage.

After assemble the fuel line, turn on the ignition switch (do not operate the starter) so that the fuel pump runs for approximately two seconds and fuel line pressurizes.

Repeat this operation two or three times, then check for fuel leakage at any point in the fuel line.

Bleed air from the cooling system.

Start engine and let it run until it warms up. (until the radiator fan operates 3 or 4 times.)

Turn Off the engine. Check the level in the radiator, add coolant if needed. This will allow trapped air to be removed from the cooling system.

Engine Mounting
Components and components location Components 1. Engine mounting bracket 2. Engine mounting support bracket 3. Roll rod bracket 4. Transaxle mounting brac ...

Intake And Exhaust System

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