transmission fluid ISUZU TROOPER 1995 Owner's Guide

... ......,.
AUTOMATIC TRANSMISSION (4L30-E) 7A-155
ON-VEHICLE SERVICE
CHECKING TRANSMISSION FLUID
LEVEL
1. Park the vehicle on level ground.
2. Apply the parking brake.
3. Place the automatic transmission in "Park" and
start the engine.
Allow the engine to idle for
two minutes.
4. With the brakes applied, move the shifter lever
through all the gear ranges, ending in "Park".
5. Remove the dipstick, Carefully touch the
dipstick with your finger to determine the
temperature of the fluid. (Fig. 7A-14)
• If the fluid is cool or warm (approximately
room temperature) or slightly higher (but
not too hot to touch), the fluid level should
be within the "Cold" range.
• If the fluid is hot, the fluid level should be
(A; within the "Hot" range.
6.
Cold Hot
Fig. 7A-14
• If the vehicle has just been driven for a long
period of time at highway speeds or in city
traffic in hot weather, wait 30 minutes for
the fluid to cool down before checking fluid
level.
If fluid level is low, add enough DEXRON®-m
Automatic transmission fluid to bring trans­
mission
to its proper fluid level through the
transmission oil filler tube.
NOTE:
The automatic transmission fluid level must be
checked
with the vehicle at normal AfT oil
operating temperature: 75 TO 85°C (167 TO
185°F)
measured with TECH1 scan tool.
Overfilling or underfilling could result in
damage
to the transmission.
• If fluid level is low, inspect the area around
the oil pan for leakage.
•
If the fluid smells burnt or is black, replace
it.
CHANGING TRANSMISSION FLUID
There is no need to change the transmission fluid
unless the transmission is used under one or more
of the following heavy duty conditions.
A: Repeated
short trips
B: Driving on rough roads
C: Driving on dusty roads
D: Towing a trailer
If the vehicle is used under these conditions,
change the fluid every 20,000 miles (32,000 km.)
There is
no drain plug in the oil pan. Oil should be
extracted
with suitable suction device through the
filler tube. Alternately the fluid can be drained by
carefully removing the oil pan. Place a large drain
pan
under the oil pan, remove 13 bolts on the right,
left and front sides of the oil pan and loosen 3 bolts
on the rear side.
Drain
the fluid carefully.
Hold
the pan horizontally, remove the remaining 3
bolts and remove pan and gasket. Clean the oil pan
and
reinstall it . with a new gasket. It is also
recommended to replace the fixing bolts. Tighten
16 fixing bolts to 11 N·m (8 lb·ft.) torque.
MANUAL LINKAGE
~ INSPECTION
1. Make sure that when the shifter control lever is
shifted
from "P" to "L", a "clicking" can be felt
at each shift position. Make sure that the gear
corresponds
to that of the position plate
indicator.
2. Check to see if the shifter lever can be shifted
as
shown in Fig. 7A-15. jQ
~ Button must be pressed.
~ Button need not be pressed.
Fig. 7A-15

2. Exhaust and transfer protectors
~~~ Torque N-m(lb.ft) 37 (27)
1. Skid plate
• Connect negative (-) battery cable.
• Install
engine hood.
• Adjust shift lock cable.
Refer to "Selector lever" in this section.
SOLENOID VALVE
(MAIN CASE VALVE BODY)
l••l REMOVAL
Preparation:
• Disconnect negative {-) battery cable.
•
Remove exhaust protector and exhaust pipe.
1. Main case oil pan
• Remove sixteen 10 mm screws, main case
oil pan, magnet, and gasket.
• Drain fluid.
Refer to "CHANGING TRANSMISSION
FLUID".
2. Oil filter
• Remove three 13 mm screws, oil filter.
3. Wiring harness
• Disconnect wiring harness from band control
solenoid,
shift solenoids and main case 4 pin
connector.
Pull only on connectors, not on
wiring harness.
4. Spring pin (Fig. 7 A-29b and 7 A-29c)
• Remove spring pin for 1-2/3-4 shift solenoid,
2-3 shift solenoid, and band control solenoid
respectively,
using suitable pliers taking care
not to damage solenoids.
Fig. 7A-29b
AUTOMATIC TRANSMISSION (4L30 .. E) 7A-165
Fig. 7A-29c
5. Solenoids
• Remove 1-2/3-4 shift solenoid, 2-3 shift
solenoid, band control solenoid, and gaskets
from main case valve body. Do not pull on
wiring harness. Remove
· solenoids by
grasping the
metal tip.
I••! INSTALLATION
To install, follow the removal steps in the reverse
order,
noting the following points;
5. Solenoids
• Install 1-2/3-4 shift solenoid, 2-3 shift
solenoid, band control solenoid with new
gaskets to main case valve body respectively.
4. Spring pin (Fig. 7 A·29d)
• Carefully install spring pin with hammer to
avoid damage to valve body etc.
3. Wiring harness
• Connect wiring harness to solenoids and
main case 4 pin connector.
2. Oil filter
• Install oil filter with new gasket, three 13 mm
screws.
~~~ Torque N·m(lb.ft) 20 (15)
1. Main case oil pan
•
Install magnet, main case oil pan with new
gasket, sixteen 10 mm screws.
1~1 Torque N·m(lb·in) J 11 (96)
• Fill transmission through the oil filler tube,
using ATF DEXRQN®-m.
• Install exhaust protector and exhaust pipe.
• Connect negative (-) battery cable.

7A-166 AUTOMATIC TRANSMISSION (4l30-E)
Fig. 7A-29d
SOLENOID VALVE
(ADAPTER CASE VALVE BODY)
l++l REMOVAL
Preparation:
• Disconnect negative(-) battery cable.
• Remove exhaust protector and exhaust pipe.
• Drain fluid.
• Refer to "CHANGING TRANSMISSION FLUID".
1. Adapter case oil pan
• Remove twelve 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.
Drain
the fluid carefully.
2. Wiring harness
• Disconnect wiring harness from force motor
solenoid, converter clutch solenoid and 5
pin
connector of adapter case. Pull only on
connectors,
not on wiring harness.
Fig. 7A-29e Fig.
7A-29f
3. Solenoid (fig. 7 A-29e and 7 A-29f)
• Remove 11 mm bolt and converter clutch
solenoid
with two 0-rings.
• Remove 11 mm bolt, retainer, and force
motor solenoid.
1••1 INSTALLATION
To install, follow the removal steps in the reverse
order,
noting the following points;
3. Solenoid
• Install force motor solenoid, retainer, and 11
mm bolt to adapter case valve body.
~~~ Torque N-m(lb-in) I 10 (87)
• Install converter clutch solenoid with two 0-
rings, and 11 mm bolt to adapter case valve
body.
~~~ Torque N-mOb·in) 10 (87)
2. Wiring harness
• Connect w1nng harness assembly to
solenoids and 5 pin connector of adapter
case.
1. Adapter case oil pan
• Install adapter case oil pan, new gasket, and
twelve 10 mm screws.
~~~ Torque~ N·mOb·in) I 11 (96)
• Fill transmission through the oil filter tube,
usin~1 ATF DEXRON®-111.
• Install exhaust protector and exhaust pipe.
• Connect negative (-) battery cable.
•

VALVE BODY ASSEMBLY (MAIN CASE)
1••1 REMOVAL
Preparation:
• Disconnect negative (-) battery cable.
• Remove exhaust protector and exhaust pipe.
1. Main case oil pan
• Remove sixteen 10 mm screws, main case
oil pan,
magnet and gasket.
• Drain fluid.
Refer
to "CHANGING TRANSMISSION
FLUID".
2. Oil filter
•
Remove three 13 mm screws, oil filter.
3. Manual detent
• Remove two 13 mm screws, roller and
spring assembly.
4. Wiring harness
• Disconnect wiring harness from band control
solenoid, shift solenoids and main
case 4 pin
connector.
Pull only on connectors, not on
wiring harness.
5.
Servo cover
• Remove four 13 mm screws, servo cover
and gasket.
6. Main case valve body
• Remove seven 13 mm valve body screws.
• Remove main valve body assembly with
manual valve link and transfer plate.
NOTE:
Note the position of link, with the long end into
valve, short end into range selector lever.
• Remove transfer plate gasket from main
case.
• Remove two check balls from main case.
I••IINSTALLATION
To install, follow the removal steps in the reverse
order,
noting the following points;
6. Main
case valve body
• Install two check balls (Fig. 7 A-29g).
• Inspect electrical 4 pin connector and seal of
main case. Replace if necessary.
• Install two guide pins into main case.
1®.1 Guide pin: J-25025-B
• Install
valve body complete 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.
AUTOMATIC TRANSMISSION (4L30-E) 7A-167
• Install seven 13 mm screws (Fig. 7A-29h).
~~~ Torque N·m(lb·ft) I 20 (15)
5.
4.
• Remove two guide pins.
Fig. 7A-29g
Fig. 7A-29h
Servo cover
Check ball
• Install servo cover gasket, cover and four 13
mm screws.
Torque
N·mOb·ft) I 25 (18)
Wiring harness
• Connect harness to band control and shift
solenoids.
• Connect 4 pin connector to main case
connector.

7A-168 AUTOMATIC TRANSMISSION (4L30-E)
3. Manual detent
• Install roller and spring assembly.
• Install
two 13 mm screws.
~~~ Torque N·m(lb.ft) I 20 (15)
2. Oil filter
• Install oil filter and three 13 mm screws.
~~~ Torque N-m(lb.ft) I 20 (15)
1. Main case oil pan
• Install oil pan gasket, magnet, oil pan and
sixteen
10 mm screws.
~~~ Torque N·m(lb-in) I 11 (96)
• Fill transmission through the oil filler tube,
using ATF
DEXRON®-111.
• Install exhaust pipe and exhaust protector.
• Connect negative (-) battery cable.
VALVE BODY ASSEMBLY (ADAPTER CASE)
1++1 REMOVAL
Preparation:
• Disconnect negative (-) battery cable.
•
Remove exhaust protector and exhaust pipe.
• Drain fluid.
•
Refer to "CHANGING TRANSMISSION FLUID".
1. Adapter case oil pan
• Remove twelve 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.
Drain the
fluid carefully.
2. Wiring harness
• Disc;:mnect wiring harness from force motor
solenoid, converter clutch solenoid and 5
pin
connector of adapter case. Pull only on
connectors,
not on wiring harness.
• Remove wiring harness.
3. Adapter case valve body
• Seve~n 13 mm screws, adapter case valve
body assembly, transfer plate and two
gaskets.
1++1 INSTALLATION
To install, follow the removal steps in the reverse
order,
notin~r the following points;
3. Adapter case valve body
• Inspect electrical 5 pin connector and seal of
adapter case. Replace if necessary.
• Install wiring harness assembly in bottom
of adapter case.
• Install gasket, transfer plate and gasket.
• Install adapter case valve body complete
and seven 13 mm screws.
~~~ Torque1 N·mOb·ft) 20 (15)
2. Wiring harness
• Connect harness assembly to converter
clutch solenoid and force motor.
1. Adapter case oil pan
• Instal!! oil pan gasket, oil pan and twelve 10
mm screws.
~~~ Torque N-m(lb-in) I 11 (96)
• Fill transmission through the oil filter tube,
using1 ATF DEXRON®-m.
• Install exhaust pipe and exhaust protector. ~
• Connect negative (-) battery cable.
•

7 A-170 AUTOMATIC TRANSMISSION (4L30-E)
TRANSMISSION OIL TEMPERATURE
SENSOR (ADAPTER CASE)
1•+1 REMOVAL
Preparation:
• Disconnect negative (-) battery cable.
•
Remove exhaust protector and exhaust pipe.
• Drain fluid.
•
Refer to "CHANGING TRANSMISSION FLUID".
1. Adapter case oil pan
• Remove twelve 10 mm screws, adapter case
oil pan and gasket (Fig. 7 A-29k).
NOTE:
Oil
pan still contains transmission fluid. Place a
large drain container under the oil pan.
Drain the
fluid carefully.
Fig. 7A-29k
2. Wiring harness
• Disconnect wiring harness from force motor
solenoid, converter clutch solenoid and 5
pin connector
of adapter case. Pull only on
connectors,
not on wiring harness.
• Remove wiring harness assembly (trans­
B mission oil temperature sensor).
INSTALLATION
To install, follow the removal steps in the reverse
order, noting the
following points;
2.
Wiring harness
• Install harness assembly to converter clutch
solenoid,
force motor and 5 pin connector
of adapter case.
1. Adapter case oil pan
• Install oil pan gasket, oil pan and twelve 10
mm screws.
~~~ Torque N·mOb·in) I 11 (96)
• Fill transmission through the oil filter tube,
using ATF
DEXRON®-111.
• Install exhaust pipe and exhaust protector.
• Connect negative (-) battery cable.
FRONT OIL SEAL (CONVERTER HOUSING)
l++l REMOVAL
Preparation:
• Removt~ engine hood.
• Disconnect negative (-) battery cable.
1. Transmission assembly
•
Remove transmission assembly with
transfer case from the vehicle.
Refer to "TRANSMISSION (WITH TRANS­
FER CASE)".
2. Torque converter
• Remove torque converter from converter
housing.
3.
Oil seal ring (Fig. 7 A-291)
• Remove three screws.
• Remove oil seal ring from converter
housing.
Fig.
7A-291
I++IINSTALLATION
To install, follow the removal steps in the reverse
order, noting the
following points;
3. Oil seal ring
• Apply clean ATF to the new oil seal ring lip.
• Install oil seal
ring to converter housing.
~~~ Torque N·mOb·in) I 3 (26)
2. Torque converter
• Install torque converter to converter housing.
1. Transmission assembly
• Install
transmission assembly with transfer
case
to the vehicle.
Refer to "TRANSMISSION (WITH TRANSFER
CASE I".
• Connoct negative (-) battery cable.
• Install
engine hood.
• Adjust shift lock cable.
Refer to "Selector lever" in this section.
• Inspect transmission fluid level.
•

REAR OIL SEAL (EXTENSION HOUSING)
l••l REMOVAL
Preparation:
• Disconnect negative (-) battery cable.
1. Transfer case assembly
• Remove transfer case assembly from the
vehicle.
Refer to "SECTION 70 TRANSFER CASE
(AfT')".
2. Rear oil seal
• Remove rear oil seal from transmission
extension housing (Fig. 7A-29m).
Fig. 7A-29m
I••IINSTALLATION
To install, follow the removal steps in the reverse
order,
noting the following points;
2. Rear oil seal
• Install rear oil seal to transmission exten­
sion housing.
1®..1 Extension housing oil seal installer: J-36797
1. Transfer case assembly
• Install transfer case assembly to the vehicle.
Refer to "SECTION 70 TRANSFER CASE
(AfT')".
• Connect negative (-) battery cable.
• Inspect
transmission fluid level.
AUTOMATIC TRANSMISSION (4L30·E) 7A-171

7A-174 AUTOMATIC TRANSMISSION (4L30·E)
1•!•1 biSASSEMBLV
During the disassembly and reassembly of the
following components, 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
with new parts.
• When assembling the components, apply
DEXRON®-m Automatic Transmission Fluid
(ATF)
to each seal, rotating part and sliding
part.
• Do not dip those parts having a facing, such as
drive plate for clutch or brake, in the cleaner
when washing it with solvent.
Also, always wash
it with new ATF two or
three times after cleaning with solvent.
1. Torque converter (Fig. 7A-30)
l"i:\1 • Drain fluid from torque converter.
~ • Attach holding fixture to the transmission
and set it on holding fixture base (Fig. 7A-
31).
Holding fixture: J-8763-02
Fixture base: J-3289-20
w NOTE:
Do
not overtighten the tool, as case damage
may result.
Fig. 7A-31
2. 0-ring (Fig. 7 A-30)
•
Remove 0-ring from turbine shaft.
3. Mode switch and transmission harness (Fig.
7A-30)
•
Remove two 10mm screws, cover and
mode switch.
• Remove transmission harness.
4.
5.
6.
7.
8.
9.
10.
11.
12.
Adapter case oil pan (Fig. 7 A-30)
•
Remove twelve 10mm screws, adapter oil
pan, and gasket.
• Remove oil filler tube.
Wiring harness (Fig. 7 A-30)
•
Disconnect electrical connections from
solenoids. Pull on connectors only, not on
wiring harness.
Adapter case valve body (Fig. 7A-30)
• Seven
13mm screws, adapter case valve
body assembly, transfer plate and two
gaskets.
• Remove wmng harness and 5 pin
connector.
Main case oil pan (Fig. 7 A-30)
•
Remove sixteen 10mm screws, main oil
pan, magnet, and gasket.
Oil filter· (Fig. 7 A-30)
•
Remove three 13mm screws, oil filter.
Manual detent (Fig. 7 A-30)
•
Remove two 13mm screws, roller & spring
and manual detent.
Wiring harness (Fig. 7 A-30)
•
Disconnect harness assembly from band
apply solenoid, shift solenoids and main
case 4 pin connector.
• Remove 4 pin connector.
Servo cover (Fig. 7 A-30)
•
Remove four 13mm screws, servo cover
and
~1asket.
Main case valve body (Fig. 7 A-30)
•
Remove seven 13mm valve body screws.
• Remove main valve body assembly with
manual valve link and transfer plate.
NOTE: Note
thE! position of link, with the long end into
valve, short end into range selector lever.
• Remove gasket transfer plate from main
case.
• Remove two check balls from main case.
13.
Servo Piston (Fig. 7A-32)
• Turn transmission to vertical position to drain
fluid. Return back
to horizontal position when
drained.
• Install servo piston spring compressor with
offset to the rear of case.
• Compress servo piston assembly.
• Remove servo piston retaining ring.
• Slowly release servo piston assembly.
• Remove tool.
1®.1 • Remove servo piston assembly, return spring,
and servo apply rod.
Servo piston spring compressor: J-23075
•

7A-188 AUTOMATIC TRANSMISSION (4L30-E)
Fig. 7A-61
2. 0-ring (fig. 7 A-59)
• Install 0-ring on turbine shaft.
1. Torque converter
(fig. 7A-59)
The converter assembly
must be replaced under
any
of the following conditions:
a. Evidence of damage to the pump assembly
b. Metal particles are found after flushing
the
cooler lines
c. External leaks in hub weld area
d. Converter Pilot broken, damaged
or poor fit
into crankshaft
e. Converter hub scored or damaged
f.
Internal failure in stator
g. Contamination
from engine coolant
h. Excess end play.
• Install converter assembly.
Rotate transmission,
bell housing up. Spin
converter
to insure proper fit.
• Fill transmission through the oil filler tube, using
DEXRQN®-111 Automatic transmission fluid.

l•!•l DISASSEMBLY
1. Retaining ring (Fig. 7A·72)
1®.1• Compress spring seat using the tool.
U7 NOTE:
VI Do not over-stress the springs and seat. This will
cause damage to the spring seat.
• Remove retaining ring.
• Release the spring seat.
U7 NOTE:
VI Do not let the spring seat catch in the ring groove.
Spring compressor: J-23075
Adapter: J-23075-12
Fig. 7A-72
2. Spring seat
3. Springs
4. Piston
~ INSPECTION AND REPAIR
Visual check
J-23075-12
J-23075
• If any damage, deformation or local wear is found
in a retaining ring, return spring, piston
seals or
spring seat, replace it.
Operation check
• Shake piston and listen for check ball movement.
Replace piston if check ball is missing or falls out.
AUTOMATIC TRANSMISSION (4L30-E) 7A-197
l•!•l REASSEMBLY
4. Piston (Fig. 7A·73)
r=1 • The lip of the seals must point toward the front
t=J of the transmission. Lubricate the lip seal with
loe:r·l transmission fluid.
~·
Install piston assembly into the third clutch
drum. Use installer to protect the outer seal
during installation.
Third clutch piston installer: J-23084
J-23084
Third clutch----•n drum
Fig. 7A-73
3. Springs
2. Spring seat
1. Retaining ring
• Place retaining ring onto spring seat.
~ • Co~press the piston springs, using the piston
sprmg compressor.
WcAUTION:
Do not over-stress the springs and seat. Do not let the
spring seat catch in the ring groove. This may cause
damage to the spring seat.
• Install spring seat retaining ring.
• Remove the piston spring compressor.
Spring compressor: J-23075
Adapter: J-23075-12