torque ISUZU AXIOM 2002 Service Repair Manual

7A±48
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 adapter case oil pan twelve fixing 10 mm
screws, adapter case oil pan, and gasket.
NOTE: Oil pan still contains transmission fluid. Place a
large drain container under the oil pan and drain the fluid
carefully.
5. Disconnect wiring harness from force motor solenoid
and converter clutch PWM solenoid. Pull only on
connectors, not on wiring harness.
6. Remove 11 mm bolt, bracket and converter clutch
PWM solenoid with two O±rings.
210RY001
7. Remove 11 mm bolt, retainer, and force motor
solenoid.
210R100002
Installation
1. Install force motor solenoid, retainer, and 11 mm bolt
to adapter case valve body. Tighten the bolt to the
specified torque.
Torque: 10 Nwm (87 lb in)
2. Install converter clutch PWM solenoid with two O±
rings, bracket, and 11 mm bolt to adapter case valve
body. Tighten the bolt to the specified torque.
Torque : 10 Nwm (87 lb in)
3. Connect wiring harness assembly to solenoids.
4. Install adapter case oil pan, new gasket, and twelve
10 mm screws. Tighten the screws to the specified
torque.
Torque : 11 Nwm (96 lb in)
5. Fill transmission through overfill screw hole oil pan,
using ATF DEXRON)±III. Refer to
Changing
Transmission Fluid in this section.
6. Connect battery ground cable.

7A±49 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 protector (4y4).
4. Drain fluid.
5. Support transfer case with a jack and remove third
crossmember.
6. Remove sixteen 10 mm screws, main case oil pan,
magnet and gasket.
7. Remove three 13 mm oil filter fixing screws, then
remove oil filter.
8. Remove two 13 mm manual detent fixing screws,
then remove roller and spring assembly.
9. Disconnect wiring harness from band control
solenoid and shift solenoids. Pull only on connectors,
not on wiring harness.
10. Remove four 13 mm servo cover fixing screws, then
remove servo cover and gasket.
11. Remove seven 13 mm valve body fixing screws.
12. 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).
13. Remove transfer plate gasket from main case.
14. Remove two check balls from main case.
Installation
1. Install two check balls to main case.
244RW002
2. Inspect electrical 7 way connector and seal of main
case. Replace if necessary.
3. Use two 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 (15 lb ft)
243RS008
5. Remove two guide pins from main case.
6. Install servo cover gasket, cover, and four 13 mm
screws. Tighten the screws to the specified torque.
Torque: 25 Nwm (18 lb ft)
7. Connect wiring harness to band control and shift
solenoids.
8. Install roller and spring assembly to manual detent.

Install two 13 mm screws, and tighten them to the
specified torque.
Torque: 20 Nwm (15 lb ft)
9. Install oil filter and three 13 mm screws. Tighten the
screws to the specified torque.
Torque : 20 Nwm (15 lb ft)
10. Install oil pan gasket, magnet, oil pan and sixteen 10
mm screws. Tighten the screws to the specified
torque.
Torque: 11 Nwm (96 lb in)
11. Install third crossmember and rear mount. Tighten the
bolts and nuts to the specified torque.
Torque
Third crossmember bolt: 116 Nwm (85 lb ft)
Rear mount nut: 50 Nwm (37 lb ft)
12. Install transfer protector. Tighten the bolts to the
specified torque (4y4).
Torque: 37 Nwm (27 lb ft)
13. Fill transmission through overfill screw hole of oil pan,
using ATF DEXRON)±III. Refer to
Changing
Transmission Fluid in this section.
14. Connect battery ground cable.

7A±50
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 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.
5. Disconnect wiring harness from force motor solenoid
and converter clutch solenoid. Pull only on
connectors, not on wiring harness.
6. 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 4 way 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 (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 (96 lb in)
6. Fill transmission through the overfill screw hole of oil
pan, using ATF DEXRON)±III. Refer to
Changing
Transmission Fluid in this section.
7. Connect battery ground cable.
Powertrain Control Module (PCM)
Removal
1. Disconnect battery ground cable.
2. Disconnect PCM wiring harness connectors from
PCM.
3. Remove PCM from bracket.
825R100018
Installation
1. Install PCM to bracket.
2. Connect PCM wiring harness connectors to PCM.
3. Connect battery ground cable.

7A±51 AUTOMATIC TRANSMISSION (4L30±E)
Speed Sensor (Extension Assembly)
Removal
1. Raise the vehicle and support on jack stands.
2. Disconnect battery ground cable.
3. Disconnect speed sensor harness connector from
speed sensor.
4. Remove one 10 mm screw and speed sensor with
O±ring.
Sensor Location (4y4)
241R200002
Sensor Location (4y2)
241R200001
Installation
1. Inspect the speed sensor O±ring, and replace it if
necessary.
2. Install speed sensor assembly and 10 mm screw.
Torque: 9 Nwm (78 lb in)
3. Connect speed sensor harness connector to speed
sensor.
4. Connect battery ground cable.

7A±52
AUTOMATIC TRANSMISSION (4L30±E)
Transmission Oil Temperature Sensor (Main Case)
Removal
1. Raise the vehicle and support it on jack stands.
2. Disconnect battery ground cable.
3. Drain fluid.
4. Remove sixteen 10 mm main case oil pan fixing
screws, main case oil pan, and gasket.
5. Disconnect wiring harness from shift solenoids, band
apply solenoid, and 7 way connector of main case.
Pull only on connectors, not on wiring harness.
6. Remove wiring harness assembly with transmission
oil temperature sensor.
244RY001
Installation
1. Install wiring harness assembly with transmission oil
temperature sensor to band apply solenoid, shift
solenoids, and 7 way connector of main case.
2. Install oil pan gasket, oil pan, and sixteen 10 mm
fixing screws. Tighten the screws to the specified
torque.
Torque: 11 Nwm (96 lb in)
3. Fill transmission through the overfill screw hole of oil
pan, using ATF DEXRON)±III.
Refer to
Changing Transmission Fluid in this section.
4. Connect battery ground cable.

7A±53 AUTOMATIC TRANSMISSION (4L30±E)
Front Oil Seal (Converter Housing)
Removal
1. Remove transmission assembly from the vehicle.
Refer to
Transmission Assembly in this section.
2. Remove torque converter from converter housing.
3. Remove three screws and oil seal ring from converter
housing.
241RW008
Installation
1. Apply clean ATF to the new oil seal ring lip.

Install oil seal ring to converter housing. Tighten the
screws to the specified torque.
Torque: 3 Nwm (26 lb in)
2. Install torque converter to converter housing.
3. Install transmission assembly to the vehicle. Refer to
Transmission Assembly in this section.
Rear Oil Seal (Extension Assembly)
Removal
1. Remove transfer case assembly (4y4) or extension
assembly (4y2) from the vehicle. Refer to
Transfer
Case in Drive Line/Axle section (4
y4).
2. Remove rear oil seal from transmission extension
assembly.
241RW005
Installation
1. Use J±36797 extension assembly oil seal installer,
and install the rear oil seal to the transmission
extension assembly.
2. Install the transfer case assembly (4y4) or extension
assembly (4y2) to the vehicle. Refer to
Transfer Case
in Drive Line/Axle section (4
y4).

7A±54
AUTOMATIC TRANSMISSION (4L30±E)
Transmission (4L30±E)
Disassembly
NOTE: During the disassembly and reassembly, perform
the following:

Wash each part thoroughly, and blow air through each
oil passage and groove to eliminate blockage.

Seal rings, roll pins, and gaskets should be replaced.

When assembling the components, apply
DEXRON)±III Automatic Transmission Fluid (ATF)
to each seal, rotating part, and sliding part.

Do not dip part facings, such as clutch or brake drive
plates, in cleaner when washing it.
Also, always coat parts with new ATF two or three
times after cleaning with solvent.
1. Remove torque converter (1).

Drain fluid from torque converter.

Attach J±8763±02 holding fixture to the
transmission and set it on J±3289±20 holding
fixture base.
NOTE: Do not overtighten the tool, as case damage may
result.
420RW021
2. Remove O±ring (2) from turbine shaft.
3. Remove two 10mm mode switch screws, selector
lever nut, cover, and mode switch (3).
4. Remove twelve 10mm adapter case oil pan (4) fixing
screws, adapter oil pan, and gasket.
5. Disconnect electrical wiring connections (5) from
solenoids and 4 way connector of adapter case. Pull
on connectors only, not on wiring harness.
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 4 way connector.
7. Remove sixteen 10mm main case oil pan (7) fixing
screws, main oil pan, magnet, and gasket.
8. Remove three 13mm oil filter (8) fixing screws and oil
filter.9. Remove two 13mm manual detent (9) fixing screws,
roller and spring, and manual detent.
10. Disconnect wiring harness assembly (10) from band
apply solenoid, shift solenoids, and main case 7 way
connector.
Pull on connectors only, not on wiring harness.
11. Remove four 13mm servo cover (11) fixing screws,
servo cover, and gasket.
12. Remove seven 13mm valve body screws from main
case.

Remove wiring harness assembly (5) from the
adapter case side.

Remove main valve body assembly (12) with
manual valve link and transfer plate. Note the
position of the link (long end into valve, short end
into range selector lever).

Remove 7 way connector.

Remove gasket transfer plate from main case.

7A±58
AUTOMATIC TRANSMISSION (4L30±E)
36. Separate second (40) and third clutch (41)
assemblies.
37. Remove thrust washer (42).
38. Remove reverse clutch plates (43 and 44) and
reverse clutch pressure plate (45).
39. Remove bearing (46) and washer (47).
40. Remove planetary carrier assembly (48).
41. Remove thrust bearing (49).
42. Remove reaction sun gear (50)
43. Remove needle bearing (51).
44. Remove brake drum (52).
45. Remove brake band (53).
46. Remove thrust bearing (54).
242RS003
47. Rotate case to horizontal position, valve body side
facing up.

Remove spring pin (55), using cutting pliers, then
remove parking lock and selector lever assembly
(56).NOTE: Insert wire in the center of the spring pin to
prevent it from collapsing during removal. Be aware of pin
height. Protect machined face of main case.
48. Remove parking lock and range selector lever 17 mm
nut (57).
49. Remove parking lock and range selector lever (56),
and actuator assembly.
50. Remove selector shaft (58).
NOTE: Inspect the shaft for burrs before removing to
prevent damaging seal. If necessary, remove burrs by
lightly sanding with an oilstone.
249RS004
Reassembly
1. Inspect selector shaft seal, and replace it if
necessary.
NOTE: Use a seal installer when replacing the seal.

Install selector shaft.
NOTE: Spring pin groove must be positioned inside the
case.
2. Install spring pin. Be sure the selector shaft can move
freely. Do not push the pin flush with the case surface.
Leave enough height for removal.
3. Install actuator assembly (1).
4. Install parking lock and range selector lever (2) and
new 17 mm nut. Tighten the nut to the specified
torque.
Torque: 22 Nwm (16 lb ft)

7A±63 AUTOMATIC TRANSMISSION (4L30±E)
33. Install fourth clutch retainer (31) with the notch facing
up and positioned towards valve body surface.
252RW004
34. Overdrive clutch end play measurement
1. Install the J±23085±A selective washer gauging
tool on the adapter case flange and against the
input shaft.
2. Position the inner shaft of the tool against the
thrust surface of the overrun clutch housing.
3. Tighten thumb screw. Remove the tool.
4. Measure gap. Select appropriate size washer as
shown in the chart.
5. Set selective thrust washer aside.
Selective Thrust Washer
Gap: mm(in)Color
1.53 ± 1.63 (0.060 ± 0.064)Yellow
1.72 ± 1.82 (0.068 ± 0.072)Red
1.91 ± 2.01 (0.075 ± 0.079)Black
2.10 ± 2.20 (0.083 ± 0.087)Natural
2.29 ± 2.39 (0.090 ± 0.094)Green
2.48 ± 2.58 (0.098 ± 0.102)Blue
FOLLOWING THE PROCEDURE SHOULD
RESULT IN FINAL END±PLAY FROM 0.1 mm TO
0.8 mm (0.004 in TO 0.03 in)
252RS005
252RS006
35. Install selective washer (32).
NOTE: Use petroleum jelly to hold selective washer in
place.
36. Install gasket (33).
37. Install converter housing and oil pump assembly (34)
to adapter case.

Fit and tighten seven outer 13 mm screws.
Torque: 39 Nwm (29 lb ft)

7A±64
AUTOMATIC TRANSMISSION (4L30±E)

Ensure free rotation of oil pump using J±23082±01
oil pump rotation tool.
241RW010
38. Overdrive clutch end play measurement
1. Fit J±25022 and J±24773±1 turbine shaft puller
on turbine shaft.
2. Position axial play checking tool on converter
housing mating face.
3. Pull turbine shaft upwards with puller until first
resistance is met. (due to weight of overdrive
assembly).
4. Maintain shaft in this position and set indicator to
zero.
5. Pull turbine shaft further upwards with puller.
Read end play shown on indicator.
End play: 0.1mm ± 0.8mm (0.004 in ± 0.031in)
6. Remove axial play checking tool and puller.NOTE: If end play is not correct, repeat selective washer
selection.
252RW001
39. Inspect extension housing oil seal and replace if
necessary, using J±36797 extension housing oil seal
installer.

Rotate transmission to horizontal position, with
valve body side down.

Inspect parking wheel seal ring. Replace if
necessary.

Install wheel parking lock assembly (35).
40. Install speed wheel (36) and snap ring (37). (4y4)
NOTE: Use extra long, needle-nose pliers.
41. Install flange, O±ring and nut. (4y2)
42. Install gasket onto extension assembly with a thin
coating of oil.

Install extension housing assembly (38), and align
parking pawl shaft.

Install actuator assembly into extension assembly.

Install seven 8 mm hexagon socket head screws.
Torque: 32 Nwm (24 lb ft)