Kia Rio: Hydraulic System / Valve Body

Kia Rio 2017-2020 YB Service Manual / Automatic Transaxle System / Hydraulic System / 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 valves, oil redirection valves, shift valves, and manual valves. The body also features electronic solenoid valves that ensure smooth gear changes.

Repair procedures
Removal
1.

Remove the under cover.

(Refer to Engine Mechanical System - "Engine Room Under Cover").

2.

Remove the ATF drain plug (A), allow the fluid to drain out and then reinstall the drain plug.

Tightening torque :

39.2 - 49.0 N·m (4.0 - 5.0 kgf·m, 28.9 - 36.2 lb·ft)

3.

Remove the valve body cover (A) using the SST (09215-3C000) after loosening the bolts.

4.

Remove the oil filter (A) after loosening the bolts.

5.

Disconnect the main connector (A).

6.

Remove the manual valve assembly after loosen the nut (A).

7.

Remove the valve body assembly (A) with accumulators (B) after loosening the valve body mounting bolts.

Installation
1.

Place the accumulators and springs on the valve body.

Item
Color
Spring
A : UD clutch
Green
2 unit
B : OD clutch
Pink
1 unit
C : 2ND brake
Pink
2 unit
D: LR brake
Pink
1 unit

2.

Install the valve body with accumulators and then tighten the mounting bolts.

Tightening torque:

9.8 - 11.8 N·m (1.0 - 1.2 kgf·m, 7.2 - 8.7 lb·ft)

A : 6×30 ㎜

B : 6×35 ㎜

C : 6×40 ㎜

D : 6×55 ㎜

E : 6×60 ㎜

3.

Install the manual valve assembly by tighten the nut (A).

Tightening torque :

26.5 - 33.3 N·m (2.7 - 3.4 kgf·m, 19.5 - 24.6 lb·ft)

4.

Connect the main connector (A).

5.

Install the oil filter (A).

Tightening torque:

9.8 - 11.8 N·m (1.0 - 1.2 kgf·m, 7.2 - 8.7 lb·ft)

6.

Apply liquid gasket with 0.10 2in (2.6 mm) thickness without a pause as shown in the illustration.

Recommended :

LOCTITE FMD-546 or THREE-BOND TB1281B

7.

Install the valve body cover (A).

Tightening torque :

9.8 - 11.8 N·m (1.0 - 1.2 kgf·m, 7.2 - 8.7 lb·ft)

8.

Install the under cover.

(Refer to Engine Mechanical System - "Engine Room Under Cover").

9.

Refill the automatic transaxle with fluid.

(Refer to Hydraulic System - "Fluid")

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