Isuzu Trooper (1998-2002 year). Manual - part 693

7A–64

AUTOMATIC TRANSMISSION (4L30–E)

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 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 5–8840–2270–0 (J–3387–2) guide
pins. 

D

Install two 11mm bolts.

Torque: 13 N

•

m (1.3 kg·m/113 Ib in)

244RW004

D

Install gasket (transfer plate/main case).

7A–65

AUTOMATIC TRANSMISSION (4L30–E)

Adapter Case Valve Body

Disassembled View

243RY001

Legend

(1) Bracket
(2) Converter Clutch PWM Solenoid
(3) Retainer
(4) Force Motor Solenoid
(5) Retainer
(6) Plug
(7) 3/4 Accumulator Valve
(8) 3/4 Accumulator Control Valve

(9) Spring

(10) Retaining Ring

(11) Feed Limit Valve

(12) Plug Retainer
(13) O–Ring
(14) Plug
(15) Force Motor Screen Assembly
(16) Adapter Case Valve Body

Disassembly

1. Remove 11mm bolt from valve body.

D

Remove bracket (1) and converter clutch PWM
solenoid (2).

2. Remove 11mm bolt and retainer (3) from valve body.

D

Remove force motor solenoid (4).

3. Remove retainer (5), plug (6), 3/4 accumulator valve

(7), and 3/4 accumulator control valve (8).

4. Remove spring (9), retaining ring (10), and feed limit

valve (11). 

5. Remove plug retainer (12), O–ring (13), plug (14),

and force motor screen assembly (15). 

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 (15), plug (14),

O–ring (13), and plug retainer (12).

7A–66

AUTOMATIC TRANSMISSION (4L30–E)

2. Install feed limit valve (11), retaining ring (10), and

spring (9).

3. Install 3/4 accumulator control valve (8), 3/4

accumulator valve (7), plug (6), and retainer (5).

4. Install force motor solenoid (4).

D

Place solenoid terminals pointing towards mating
face.

D

Install retainer (3) and bolt.

Torque: 10 N

•

m (1.0 kg·m/87 Ib in)

5. Install converter clutch PWM solenoid (2) with two

O–rings (2) and bracket (1) to valve body.

D

Install bolt.

Torque: 10 N

•

m (1.0 kg·m/87 Ib in)

7A–67

AUTOMATIC TRANSMISSION (4L30–E)

Third Clutch And Sprag Unit

Disassembled View

248RW001

Legend

(1) Retaining Ring
(2) Input Sun Gear and Sprag Unit Assembly
(3) Retaining Washer
(4) Bearing

(5) Thrust Washer
(6) Clutch Plates
(7) Third Clutch Spring Cushion Plate
(8) Third Clutch Drum Assembly

Disassembly

1. Place the third clutch drum and intermediate shaft

assembly upright, using the overdrive internal gear as
a support.

2. Locate the ends of the retaining ring. Depress one

end of the ring using a small screwdriver instead of
the depressor handle provided with the tool
5–8840–2258–0 (J-38450-A). Slide one blade down
between the third clutch drum and the retaining ring.

3. Remove a screwdriver and repeat this step for the

other end of retaining ring.

4. Install the remaining four blades approximately (five)

notches apart using a screwdriver to depress the
retaining ring.

5. Pull up on input sun gear and sprag unit assembly (1

and 2) to release the retaining ring from third clutch
drum assembly (8).

6. Remove the tool blades.

248RW006

7. Remove retaining washer (3), bearing (4), thrust

washer (5), and clutch plates (6 and 7) from the third
clutch drum assembly (8).

Inspection And Repair

Visual Check:

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