1998 ISUZU TROOPER Service Repair Manual

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Page 2193 of 3573

ISUZU TROOPER 1998 Service Repair Manual 7A±39 AUTOMATIC TRANSMISSION (4L30±E)
8. Connect wiring harness to band control and shift
solenoids.
9. Install roller and spring assembly to manual detent.
Install two 13 mm screws, and tighten th

Page 2194 of 3573

ISUZU TROOPER 1998 Service Repair Manual 7A±40
AUTOMATIC TRANSMISSION (4L30±E)
Valve Body Assembly (Adapter Case)
Removal
1. Raise the vehicle and support it on jack stands.
2. Disconnect battery ground cable.
3. Drain fluid.
4. Remove tra

7A±40
AUTOMATIC TRANSMISSION (4L30±E)
Valve Body Assembly (Adapter Case)
Removal
1. Raise the vehicle and support it on jack stands.
2. Disconnect battery ground cable.
3. Drain fluid.
4. Remove transfer and exhaust protectors.
5. Remove exhaust pipe and disconnect oxygen sensor
connector.
6. Remove twelve 10 mm adapter case oil pan fixing
screws, adapter case oil pan, and gasket.
NOTE: Oil pan still contains transmission fluid. Place a
large drain container under the oil pan.
Drain the fluid carefully.
7. Disconnect wiring harness from force motor solenoid
and converter clutch solenoid. Pull only on
connectors, not on wiring harness.
8. Remove seven 13 mm screws from adapter case
valve body assembly, then remove transfer plate, two
gaskets, and adapter case valve body.
Installation
1. Inspect electrical 5 pin connector and seal of adapter
case. Replace if necessary.2. Install gasket, transfer plate, and gasket.
3. Install adapter case valve body and seven 13 mm
screws. Tighten the screws to the specified torque.
Torque: 20 Nwm (2.0 kg´m/15 lb ft)
4. Connect wiring harness assembly to converter clutch
solenoid and force motor.
5. Install oil pan gasket, oil pan, and twelve 10 mm
screws. Tighten the screws to the specified torque.
Torque: 11 Nwm (1.1 kg´m/96 lb in)
6. Install exhaust pipe and connect oxygen sensor
connector. Tighten the bolts to the specified torque.
Exhaust pipe flange bolt torque:
43 Nwm (4.4 kg´m/32 lb ft)
7. Install transfer and exhaust protectors. Tighten the
bolts to the specified torque.
Torque: 37 Nwm (3.8 kg´m/27 lb ft)
8. Fill transmission through the overfill screw hole of oil
pan, using ATF DEXRON)±III. Refer to Changing
Transmission Fluid in this section.
9. Connect battery ground cable.
Powertrain Control Module (PCM)
Removal
1. Disconnect battery ground cable.
2. Remove front console.
3. Disconnect PCM wiring harness connectors from
PCM.
4. Remove three PCM retaining screws.
5. Remove two brackets from PCM.
826RV006
Installation
1. Install two brackets to PCM.
2. Install three PCM retaining screws.
3. Connect PCM wiring harness connectors to PCM.
4. Install front console.
5. Connect battery ground cable.

Page 2195 of 3573

ISUZU TROOPER 1998 Service Repair Manual 7A±41 AUTOMATIC TRANSMISSION (4L30±E)
Speed Sensor (Extension Housing)
Removal
1. Disconnect battery ground cable.
2. Remove front console.
3. Remove selector lever assembly.
4. Disconnect speed se

Page 2196 of 3573

ISUZU TROOPER 1998 Service Repair Manual 7A±42
AUTOMATIC TRANSMISSION (4L30±E)
Installation
1. Connect ground wire to converter clutch solenoid
wiring harness connector of the wiring harness
assembly.
2. Install wiring harness assembly to

Page 2197 of 3573

ISUZU TROOPER 1998 Service Repair Manual 7A±43 AUTOMATIC TRANSMISSION (4L30±E)
Rear Oil Seal (Extension Housing)
Removal
1. Remove transfer case assembly from the vehicle.
Refer to Transfer Case in Drive Line/Axle section.
2. Remove rear o

Page 2198 of 3573

ISUZU TROOPER 1998 Service Repair Manual 7A±44
AUTOMATIC TRANSMISSION (4L30±E)
6. Remove seven 13mm adapter case valve body (6)
fixing screws, adapter case valve body assembly,
transfer plate, and two gaskets.
Remove wiring harness and 5

Page 2199 of 3573

ISUZU TROOPER 1998 Service Repair Manual 7A±45 AUTOMATIC TRANSMISSION (4L30±E)
242RW006
16. Rotate transmission to horizontal position, pan side
down.
Remove one 10mm screw, and speed sensor (18)
with ªOº ring.
17. Remove seven 8mm exte

Page 2200 of 3573

ISUZU TROOPER 1998 Service Repair Manual 7A±46
AUTOMATIC TRANSMISSION (4L30±E)
241RW004
24. Remove fourth clutch retainer (26).
25. Grasp turbine shaft and lift out the overrun clutch
housing assembly (27) and fourth clutch plates (28).
26

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