transmission ISUZU TROOPER 1995 Workshop Manual

7A-156 AUTOMATIC TRANSMISSION (4L30-E)
SELECTOR LEVER
B REMOVAL
Preparation:
• Disconnect negative (-) battery cable.
(}-
2. Front console
)3
1. Knob
Fig. 7A-16
1. Transfer control lever knob
2. Front console
3. Selector
lever
assembly
• Disconnect wiring harness connectors.
3. Selector lever assembly
• Disconnect shift lock cable from the selector
lever assembly
side (Fig.7A-16a).
• Disconnect wiring harness connectors.
• Disconnect shift control rod from the
selector lever assembly side (Fig.7A-16b).
Fig. 7A-16a Fig.
7A-16b
I••IINSTALLATION
To install, follow the removal steps in the reverse
order,
notin!~ the following points;
Adjustment of select lever and control rod (Fig.
7A-16c)
(1) Set sele1ct lever in the "N" position.
(2) Push select lever forward and secure it (using a
rubber band, etc.) so that pin comes into
contact with the wall of detent plate.
(3) Turn nut CD by hand until it comes into contact
with boss@.
(4) With nut CD fixed with an appropriate tool, turn
nut®.
~~~ Torque N·mOb·ft) I 27 (20)
(5) Install clip @ and tighten with nut @.
~~~ Torque N·m(lb·in) I 7 (61)
w NOTE:
Clean the rod threads and do not apply oil to
the threaded portions.
(6) After adjustment, operate select lever on a trial
basis to make sure of its smooth operation and
no
abnormal indication in each position.
.......
..._.
II

Rubber band
Fig. 7A-16c
Adjustment of shift lock cable (Fig. 7A-16d)
(1) Set IGN key in "LOCK" position and selector
lever
in "P" position.
(2)
Adjust cable screw cap on selector lever side to
provide a gap (slack for cable) of 2.0 ± O.Smm
between rod on steering lock side and stopper.
Adjust cap as follows:
CD Hand turn nut (A) until it comes in contact
with bracket while pulling screw cap in
® Then turn nut (A) 2 reverse turns (2 mm) to
give slack to inner cable.
@ Lock inner cable by turning nut (8) while
holding nut (A) in place.
~~~ Torque N-m(lb-in) j 4 (35)
W NOTE:
Clean the cable threads and do not apply oil to
the threaded portions.
AUTOMATIC TRANSMISSION (4L30·E) 7A-157
Fig. 7A-16d
(3) Make sure of proper operation of shift lock
through checks as follows:
CD Selector lever shall not be moved out of "P"
position with IGN key in "Lock" position.
® Selector lever can be moved out of "P"
position with IGN key in "ON" position only
when brake pedal is depressed.
@ IGN key can be turned to "LOCK" position
only when selector lever is in "P" position
(key can be
pulled out).
If CD and @ fail, readjust cable. If ® fails, readjust
connector
wiring and brake pedal switch.
MODE SWITCH
1++1 REMOVAL
Preparation:
• Disconnect negative (-) battery cable.
• Place selector lever
in neutral.
~3. Heat protector
2. Selector lever
6. Mode switch
1. Cover
~
Fig. 7A-17

7A-158 AUTOMATIC TRANSMISSION (4L30-E)
1. Mode switch cover
2.
Selector lever
• Disconnect selector lever from the mode
switch.
3. Heat protector
• Remove heat protector from the converter
housing. (Fig. 7A-18).
Fig. 7A-18
4. Air cleaner assembly
5. Harness connector
• Disconnect mode switch connector from the
engine harness.
• Disconnect harness clip from the clip
bracket ofthe engine (Fig. 7A-19).
6. Mode switch
• Remove two mode switch bolts.
Mode switch
connector
(Black)
(Radiator)
(Engine)
Fig. 7A-19
I••! INSTALLATION
To install, follow the removal steps in the reverse
order,
noting the following points;
1. Torque
~~~ Mode switch bolt
Heat protector bolt
Selector lever nut
N·m Ob·in)
13(113)
6 (52)
23 ( 17 lb·ft)
2. Mode switch setting procedure
Perform either
of the following adjustment
procedures:
1. (Fig. 7A-19a)
a. Place selector lever in neutral.
b. Remove selector lever from the mode
switch.
c. Remove the mode switch cover.
d. Loosen the
two 10 mm screws.
e. Rotate the mode switch until the slot in
the mode switch housing aligns with the
selector shaft bushing, and insert a 3/32
in. (2.4
mm) drill bit or punch into the
sllot.
f. Tighten the screws to 13 N·m (113 lb·in).
g. After completing adjustment, snap the
mode switch cover into place.
h. Reinstall the selector lever.
2. (Fig. 7 A.-19b)
a. Place selector lever in neutral.
b. Disconnect mode switch connector from
vehicle harness.
c. Connect multimeter (resistance mode) to
terminals 1(E) and 4(H) on mode switch
connector.
d.
Loosen two mounting screws.
e. Rotate mode switch slightly in both
diirections to determine the range
(approx.
5 degrees) of electrical contact.
f. Position
mode switch in middle of
contact range.
g. Tighten
two mounting screws.
h. Remove multimeter and reconnect
harness.
Fig. 7A-19a
..
•

8 (A)
4 (H)
3 (G)
Mode switch connector
Fig. 7A-19b
1(E)
2 (F)
AUTOMATIC TRANSMISSION (4L30-E) 7A-159

7A-160 AUTOMATIC TRANSMISSION (4L30-E)
TRANSMISSION (WITH TRANSFER CASE)
6
I
10 i
'
17 22
Removal steps
1. Skid plate 10. Front crossmember
2. Exhaust and transfer pretectors 11. Oil level gauge and guide tube
3. Rear propeller shaft
12. Stiffener
4. Front propeller shaft 13. Heat protector
5. Exhaust pipe
14. Starter
6. Front console
15. Flywheel under cover
7.
Selector lever assembly 16.
Air cleaner assembly
8. Transfer control lever
17. Harness
9. Transmission
oil cooler pipe
Fig. 7A-20
""' 19
8
7
7
20
18. Flywheel· Torque converter bolt 19. Rear mount nut 20. Third crossmember
21. Engine-transmission bolt
22. Transmission assembly
Installation steps
To
install, follow the removal
steps in the reverse order.
-A
•

1••1 REMOVAL
Preparation:
• Remove engine hood.
• Disconnect negative (-) battery cable.
1. Skid plate
2. Exhaust and transfer protectors
3. Rear propeller shaft
4. Front propeller shaft
5. Exhaust pipe
• Remove pre-catalytic converter, center pipe
and
front pipe.
• Disconnect Oxygen Sensor (025) sensor
connector
from the transmission harness
connector (Fig.
7A-21).
Fig. 7A-21
6. Front console
• Remove transfer control lever knob.
• Disconnect wiring harness connectors.
7. Selector lever assembly
• Disconnect shift lock cable from the selector
lever assembly
side (Fig. 7 A-22).
• Disconnect wiring harness connectors.
• Disconnect shift control rod from the
selector lever assembly side (Fig. 7 A-23).
Fig. 7A-22
AUTOMATIC TRANSMISSION (4L30·E) 7A-161
Fig. 7A-23
8. Transfer control lever
9. Transmission oil cooler
pipe
• Disconnect transmission oil cooler pipe
from AfT side.
• Remove oil pipe clamp bracket from engine
stiffener (Fig.
7 A-24).
• Loosen oil pipe clamp bolt at the engine
mount side.
Fig.
7A-24
10. Front crossmember
11.
Oil level gauge and guide tube
• Disconnect breather hoses from guide tube.
12.
Stiffener
• Remove five stiffener bolts.
13. Heat protector (Fig. 7A-25}
14.
Starter

7A-162 AUTOMATIC TRANSMISSION (4L30-E)
Fig. 7A-25
15. Flywheel under cover
• Remove flywheel under cover from trans­
mission case.
16. Air cleaner assembly
17. Harness (Fig. 7A-26)
• Disconnect transmission harness connectors
and mode switch harness connector
from
engine harness.
• Disconnect harness clamp from engine clamp
bracket.
• Disconnect ground cable from engine.
Fig. 7A-26
18. Flywheel-Torque converter bolt
• Remove flywheel torque converter fixing
bolts (3 pieces) by turning crankshaft.
19. Rear Mount Nut
• Support transmission with a jack.
• Remove two rear mount nuts from the 3rd
crossmember side (Fig. 7A-27). Fig.
7A-27
20. Third cr·ossmember
• Remove eight third crossmember bolts.
21. Engine-transmission bolt
• Hoist engine with a chain block.
•
Remove engine-transmission bolts
22. Transmission assembly

AUTOMATIC TRANSMISSION (4L30-E) 7A-163
I••IINSTALLALTION
To install, follow the removal steps in the reverse
order,
noting the following points;
22. Transmission assembly
•
Slowly raise transmission jack until front of
the transmission is aligned with rear of the
engine.
21. Engine-transmission
bolt
•
Tighten engine-transmission bolts, to the
specified
torque (Fig. 7A-28).
76/56
21 27 1.2
Cy~Bioc~21ip; Breather Hose
M/Case
68
Stiffener;R H M/Case U/Cover
Fig. 7A-28
45
35 ~ Torque : N·m/lb·ft
Length: mm
40
,---iEJE~I:=ll=1_::76/56
Cyl Blo~ r--1
M/Case J
1
-------e9E~~=~a.l_76/56
~ Cyl. Block M/Case
M/Case

7A-164 AUTOMATIC TRANSMISSION (4L30-E)
20. Third crossmember
~~~ Torque N·m(lb.ft) 50 (37)
19. Rear mount nut
~~~ Torque N·mOb·ft) 41 (30)
18. Flywheel-torque converter bolt
• Align
the flywheel-torque converter bolt boss
with the starter portion of the converter
housing
by turning torque converter.
• Install flywheel-torque converter bolts (3
pieces) by turning crankshaft (Fig. 7 A-29)
~~~ Torque N·mOb·ft) 54 (40)
Fig. 7A-29
17. Harness (fig. 7A-29a)
• Connect transmission and mode switch
harness connectors to engine harness.
• Connect harness clamp to engine harness
clamp bracket and radiator clip.
•
Connect ground harness to engine.
Fig. 7A-29a
16. Air
cleaner assembly
15. Flywheel under cover
~~~ TorqUte N·mOb·in)
14. Starter
~~~ Torqu,e N·m(lb·ft)
13. Heat protector
~~~ Torqu'e N·m(lb·in)
12. Stiffener
N·m(lb·ft)
11. Oil lever gauge and guide tube 6
(52)
40 (30)
6 (52)
48 (35)
• Connect breather hoses to guide tube.
10. Front crossmember
~~~ Torque N·m(lb·ft) I 78 (58)
9. Transmission oil cooler pipe
• Install transmission oil cooler pipe to
transmission.
~~~ Torqwe N·m(lb·ft) I 54 (40)
•
lnsta1ll oil pipe clamp bracket to engine
stiffener. .~
• Tighten oil pipe clamp bolt at engine mount
side.
8. Transfer control lever
7. Selector lever assembly
•
Connect shift control rod to selector lever
assembly.
•
Connect wiring harness connectors.
• Connect shift lock cable to selector lever
assembly.
6. Front cc>nsole
• Connect wiring harness connectors.
• Install transfer control lever knob.
5. Exhaust pipe
I~I ___ T_o_r_q~_ue __________________ 4-N_·_m_(l_b_·ft __ )
Exh. pipe
to exh. manifold 67 (49)
Center pipe
front side bolt 43 (32)
Pre-catalytic converter bolt 43 (32)
• Connect Oxygen Sensor (025) connector to
transmission harness connector.
4. Front propeller shaft
3. Rear propeller shaft
~~~ Torqwe N·mOb·ft) 63 (46)

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.