Opel Frontera UE. Manual - part 1011

7A–68

AUTOMATIC TRANSMISSION (4L30–E)

Oil Pump

Disassembled View

241RS014

Legend

(1) Oil Pump Drive Gear
(2) Oil Pump Driven Gear
(3) Pin
(4) Plug
(5) Spring
(6) Converter Clutch Control Valve
(7) Snap Ring
(8) Spring Seat
(9) Spring

(10)

Throttle Signal Accumulator Piston

(11)

Sleeve Pin

(12)

Sleeve

(13)

Boost Valve

(14)

Spring Seat

(15)

Valve Spring

(16)

Spring Seat

(17)

Pressure Regulator valve

(18)

Oil Pump Assembly

Disassembly

1. Remove oil pump drive gear (1) and driven gear (2). 
2. Remove pin (3) from oil pump assembly (18). 
3. Remove plug (4), spring (5), and converter clutch

control valve (6). 

4. Remove snap ring (7) from oil pump assembly (18). 
5. Remove spring seat (8), spring (9), and throttle signal

accumulator piston (10). 

6. Remove sleeve pin (11) from oil pump assembly (18). 
7. Remove sleeve (12), boost valve (13), spring seat

(14), valve spring (15), spring seat (16), and pressure
regulator valve (17). 

Inspection and Repair

Visual Check:

If any damage, deformation or wear is found, replace the
damaged part.

Reassembly

1. Lubricate and preinstall pressure regulator spring

seat (16) on valve (17), with the flat side against
shoulder.

2. Install pressure regulator valve (17) and spring seat

(16) assembly, valve spring (15), and spring seat (14)
with the flat side away from spring to oil pump
assembly (18). 

3. Assemble boost valve (13) into sleeve (12).
4. Install boost valve and sleeve assembly, and sleeve

pin (11) to oil pump assembly (18). 

5. Install throttle signal accumulator piston (10), spring

(9), and spring seat (8), with the flat side away from
the spring, and snap ring (7) to oil pump assembly
(18).

6. Install converter clutch control valve (6), spring (5),

plug (4), and pin (3) to oil pump assembly (18). 

7. Install oil pump driven gear (2) and drive gear (1). 

7A–69

AUTOMATIC TRANSMISSION (4L30–E)

Main Case Valve Body

Disassembled View

244RS010

Legend

(1) Gaskets and Transfer Plate
(2) Manual Valve
(3) Band Control Solenoid
(4) Pin
(5) Waved Washer
(6) Spring Pin
(7) Solenoid A
(8) Retainer
(9) 1–2/3–4 Shift Valve

(10) Spring

(11) Spring Pin

(12) Solenoid B
(13) Retainer
(14) 2–3 Shift Valve

(15) Spring
(16) Spring Pin
(17) Plug
(18) Spring
(19) Low Pressure Control Valve
(20) Spring Pin
(21) Plug
(22) Band Control Screen Assembly
(23) Spring Pin
(24) Plug
(25) 1–2 Accumulator Valve
(26) 1–2 Accumulator Control Valve
(27) Check ball
(28) Main Case Valve Body

7A–70

AUTOMATIC TRANSMISSION (4L30–E)

Disassembly

1. Remove two 11mm bolts from valve body (28), then

remove gaskets and transfer plate (1).

2. Remove manual valve (2). 
3. Push in band control solenoid (3) to compress waved

washer (5), and remove pin (4).

4. Remove band control solenoid (3) and waved washer

(5).

5. Remove spring pin (6) with a 3 mm diameter punch.
6. Remove solenoid A (7) by grasping the metal tip. Do

not grasp the connector housing.

7. Remove retainer (8), 1–2/3–4 shift valve (9) and

spring (10). 

8. Remove spring pin (11) with a 3 mm diameter punch.
9. Remove solenoid B (12) by grasping the metal tip.  Do

not grasp the connector housing.

10. Remove retainer (13), 2–3 shift valve (14), and spring

(15). 

11. Remove spring pin (16), plug (17), spring (18) and low

pressure control valve (19). 

12. Remove spring pin (20), plug (21), and band control

screen assembly (22). 

13. Remove spring pin (23), plug (24), 1–2 accumulator

valve (25), and 1–2 accumulator control valve (26).

14. Remove 1 check ball (27) from valve body (28).

Inspection and Repair

Inspect for the following, and replace any damaged or
worn parts:

1. Damage or wear to each valve.
2. Damage in oil passeges.
3. Cracks or damage to valve body.
4. Valve operations.
5. Spring fatigue.

Reassembly

1. Install 1–2 accumulator control valve (26), 1–2

accumulator valve (25), plug (24), and spring pin (23).

2. Install band control screen assembly (22), plug (21),

and spring pin (20). 

3. Install low pressure control valve (19), spring (18),

plug (17), and spring pin (16). 

4. Install spring (15), 2–3 shift valve (14), retainer (13),

solenoid B (12), and spring pin (11). 

5. Install spring (10), 1–2/3–4 shift valve (9), retainer (8),

solenoid A (7), and spring pin (6). 

6. Install waved washer (5), band control solenoid (3),

and pin (4). 

7. Install manual valve (2). 
8. Install check ball (27) to valve body (28).
9. Install gasket (valve body/transfer plate) and transfer

plate using two  J–3387–2 guide pins. 

D

Install two 11mm bolts.

Torque: 13 N

•

m (113 lb in)

244RS004

D

Install gasket (transfer plate/main case).

7A–71

AUTOMATIC TRANSMISSION (4L30–E)

Adapter Case Valve Body

Disassembled View

243RW001

Legend

(1) Converter Clutch Solenoid Assembly
(2) Retainer
(3) Force Motor Solenoid
(4) Retainer
(5) Plug
(6) 3/4 Accumulator Valve
(7) 3/4 Accumulator Control Valve

(8) Spring
(9) Retaining Ring

(10) Feed Iimit Valve

(11) Plug Retainer

(12)

O-ring

(13) Plug
(14) Force Motor Screen Assembly
(15) Adapter Case Valve Body

Disassembly

1. Remove 11mm bolt from valve body.

D

Remove converter control solenoid assembly  (1).

2. Remove 11mm bolt and retainer (2) from valve body.

D

Remove force motor solenoid (3).

3. Remove retainer (4), plug (5), 3/4 accumulator valve

(6), and 3/4 accumulator control valve (7)

4. Remove spring (8), retaining ring (9), and feed limit

valve (10). 

5. Remove plug retainer (11), O-ring (12), plug (13), and

force motor screen assembly (14). 

D

Use 5 mm bolt to pull plug.

Inspection and Repair

Inspect for the following, and replace any damaged or
worn parts:

1. Damage or wear to each valve.
2. Damage in oil passeges.
3. Cracks or damage to valve body.
4. Valve operations.
5. Spring fatigue.

Reassembly

1. Install force motor screen assembly (14), plug (13),

O-ring (12), and plug retainer (11).

2. Install feed limit valve (10), retaining ring (9), and

spring (8).