1998 ISUZU TROOPER Service Repair Manual

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Page 2185 of 3573

ISUZU TROOPER 1998 Service Repair Manual 7A±31 AUTOMATIC TRANSMISSION (4L30±E)
Transmission (With Transfer Case)
Transmission And Associated Parts
240RW027
Legend
(1) Transfer Control Lever Knob
(2) Front Console
(3) Selector Lever Assembl

Page 2186 of 3573

ISUZU TROOPER 1998 Service Repair Manual 7A±32
AUTOMATIC TRANSMISSION (4L30±E)
4. Disconnect shift lock cable from the selector lever
assembly side.
256RW012
5. Disconnect wiring harness connectors.
6. Disconnect shift control rod from the

Page 2187 of 3573

ISUZU TROOPER 1998 Service Repair Manual 7A±33 AUTOMATIC TRANSMISSION (4L30±E)
27. Remove transmission assembly (18).
Installation
1. Slowly raise transmission jack until front of the
transmission is aligned with rear of the engine, then
i

Page 2188 of 3573

ISUZU TROOPER 1998 Service Repair Manual 7A±34
AUTOMATIC TRANSMISSION (4L30±E)
5. Install the flywheel under cover (3 pieces), and tighten
the bolts to the specified torque.
Torque: 8 Nwm (0.8 kg´m/69 lb in)
6. Install the starter, and ti

Page 2189 of 3573

ISUZU TROOPER 1998 Service Repair Manual 7A±35 AUTOMATIC TRANSMISSION (4L30±E)
17. Install harness protector.
815RW002
18. Install the front propeller shaft, and tighten the bolts to
the specified torque.
Torque: 63 Nwm (6.4 kg´m/46 lb ft

Page 2190 of 3573

ISUZU TROOPER 1998 Service Repair Manual 7A±36
AUTOMATIC TRANSMISSION (4L30±E)
Solenoid (Main Case Valve Body)
Removal
1. Raise the vehicle and support it on jack stands.
2. Disconnect battery ground cable.
3. Remove transfer and exhaust

7A±36
AUTOMATIC TRANSMISSION (4L30±E)
Solenoid (Main Case Valve Body)
Removal
1. Raise the vehicle and support it on jack stands.
2. Disconnect battery ground cable.
3. Remove transfer and exhaust protectors.
4. Drain fluid.
5. Remove exhaust pipe and disconnect oxygen sensor
connector.
6. Support transfer case with a jack and remove third
crossmember.
7. Remove sixteen 10 mm screws, main case oil pan,
magnet, and gasket.
8. Remove three 13 mm screws, oil filter.
9. Disconnect wiring harness from band control
solenoid and shift solenoids. Pull only on connectors,
not on wiring harness.
10. Remove spring pin for shift solenoid A, shift solenoid
B, and band control solenoid respectively, using
suitable pliers taking care not to damage solenoids.
210RW010
244RW003
11. Remove shift solenoid A, shift solenoid B, band
control solenoid, and gaskets from main case valve
body. Do not pull on wiring harness. Remove
solenoids by grasping the metal tip.
Installation
1. Install shift solenoid A, shift solenoid B, band control
solenoid with new gaskets to main case valve body
respectively.
2. Carefully install spring pin with hammer to avoid
damage to valve body, etc.
243RW004
3. Connect wiring harness to solenoids.
4. Install oil filter with a new gasket and the three 13 mm
screws. Tighten the screws to the specified torque.
Torque: 20 Nwm (2.0 kg´m/15 lb ft)
5. Install magnet, main case oil pan with new gasket,
sixteen 10 mm screws. Tighten the screws to the
specified torque.
Torque: 11 Nwm (1.1 kg´m/96 lb in)
6. Install third crossmember and rear mount nuts.
Tighten the nuts and bolts to the specified torque.
Third crossmember bolt: 50 Nwm
(5.1 kg´m/37 lb ft)
Rear mount nut: 50 Nwm (5.1 kg´m/37 lb ft)
7. 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)
8. Install the transfer and exhaust protectors. Tighten
the bolts to the specified torque.
Torque: 37 Nwm (3.8 kg´m/27 lb ft)
9. Fill transmission through the overfill screw hole of oil
pan, using ATF DEXRON)±III. Refer to Changing
Transmission Fluid in this section.
10. Connect the battery ground cable.

Page 2191 of 3573

ISUZU TROOPER 1998 Service Repair Manual 7A±37 AUTOMATIC TRANSMISSION (4L30±E)
Solenoid (Adapter Case Valve Body)
Removal
1. Raise the vehicle and support it on jack stands.
2. Disconnect battery ground cable.
3. Drain fluid.
4. Remove tr

Page 2192 of 3573

ISUZU TROOPER 1998 Service Repair Manual 7A±38
AUTOMATIC TRANSMISSION (4L30±E)
Valve Body Assembly (Main Case)
Removal
1. Raise the vehicle and support it on jack stands.
2. Disconnect battery ground cable.
3. Remove transfer and exhaust p

7A±38
AUTOMATIC TRANSMISSION (4L30±E)
Valve Body Assembly (Main Case)
Removal
1. Raise the vehicle and support it on jack stands.
2. Disconnect battery ground cable.
3. Remove transfer and exhaust protectors.
4. Drain fluid.
5. Remove exhaust pipe and disconnect oxygen sensor
connector.
6. Support transfer case with a jack and remove third
crossmember.
7. Remove sixteen 10 mm screws, main case oil pan,
magnet and gasket.
8. Remove three 13 mm oil filter fixing screws, then
remove oil filter.
9. Remove two 13 mm manual detent fixing screws,
then remove roller and spring assembly.
10. Disconnect wiring harness from band control
solenoid and shift solenoids. Pull only on connectors,
not on wiring harness.
11. Remove four 13 mm servo cover fixing screws, then
remove servo cover and gasket.
12. Remove seven 13 mm valve body fixing screws.
Disconnect the ground wire from the main case
valve body.
13. Remove main case valve body with manual valve link
and transfer plate. Note the position of the link (long
end into valve, short end into range selector lever).
14. Remove transfer plate gasket from main case.
15. Remove two check balls from main case.
Installation
1. Install two check balls to main case.
244RW002
2. Inspect electrical 4 pin connector and seal of main
case. Replace if necessary.3. Use two 5±8840±0022±0 (J±25025±B) guide pin to
install main case.
Install valve body assembly and manual valve link.
NOTE: Valve must be extended as the short end of
manual valve link is connected to the range selector lever.
Long end of link goes into valve.
4. Install seven 13 mm screws, and tighten them to the
specified torque.
Torque: 20 Nwm (2.0 kg´m/15 lb ft)
243RS008
5. Install 8.5 mm connector of ground wire the head of
this valve body bolt and reinstall it. Tighten the bolt to
the specified torque.
Torque: 20 Nwm (2.0 kg´m/15 lb ft)
244RW001
6. Remove two guide pins from main case.
7. Install servo cover gasket, cover, and four 13 mm
screws. Tighten the screws to the specified torque.
Torque: 25 Nwm (2.6 kg´m/18 lb ft)

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