2004 ISUZU TF SERIES Workshop Manual

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Page 4169 of 4264

ISUZU TF SERIES 2004 Workshop Manual ON-VEHICLE SERVICE (JR405E) 7A3-17
Remove or Disconnect
1. Block the wheels.
2. Disconnect the negative battery cable.
3. Drain the fluid.
Refer to “ATF CHANGE” in this section.
4. Rem

ON-VEHICLE SERVICE (JR405E) 7A3-17
Remove or Disconnect
1. Block the wheels.
2. Disconnect the negative battery cable.
3. Drain the fluid.
Refer to “ATF CHANGE” in this section.
4. Remove the 19 bolts and oil pan.
5. Inspect the bottom of the oil pan and strainer netting
for foreign material (clutch facing and metal
shavings).
If there is an excessive accumulation of foreign
material, the oil strainer must be replaced.
Further inspection is required to determine the
source of the foreign material.
6. Remove the harness assembly (including oil
temperature sensor).
7. Remove the 11 bolts and the solenoid fixing plate.
8. Remove the 6 solenoids and 3 oil pressure switchs.

Inspect
Oil pressure switch
Apply compressed air (392 kPa/4.0 kg/cm2) to the oil
pressure switch to check the oil pressure switch
continuity between the connector and screw.

Oil temperature sensor (harness assembly)
Check the oil temperature sensor resistance between
harness terminals 7 and 6 (ground).
Oil temperature sensor resistance:
2,400~2,600 ohms (20
C)
244L300011

Solenoid
Measure the resistance of each solenoid.
Resistance:
Brown connector – 3.0~3.4 ohms (20
C)
Gray connector – 12.0~13.2 ohms (20
C)
White connector – 12.2~13.4 ohms (20
C)
Install or connect
1. Install the O-rings to each of the solenoids.
2. Install the 6 solenoids and 3 oil pressure switchs.
Line pressure solenoid bolt torque:
8 N·m (69 lb·in)
Oil pressure switch bolt torque:
4.4 N·m (39 lb·in)
3. Install the solenoid fixing plate together with the
harness brackets.

Number Length (Color)
Solenoid fixing plate bolt
(A)
(B)
4
7
16 mm (0.63 in) (Gold)
45 mm (1.77 in) (Silver)

Bolt torque : 8 N·m (69 lb·in)
4. Install the harness assembly.
5. If removed, install the oil strainer.

Number Length (Color)
Oil strainer bolt
(C)
(D)
9
4
13 mm (0.51 in) (Silver)
45 mm (1.77 in) (Silver)

Bolt torque : 8 N·m (69 lb·in)
6. Install the new gasket and oil pan.
Bolt torque : 8 N·m (69 lb·in)
7. Fill the fluid.
Refer to “ATF CHANGE” in this section.
8. Connect the negative battery cable.
9. Remove the wheel blocks.

Page 4170 of 4264

ISUZU TF SERIES 2004 Workshop Manual 7A3-18 ON-VEHICLE SERVICE (JR405E)
CONTROL VALVE ASSEMBLY
244L300001
Remove or Disconnect
1. Block the wheels.
2. Disconnect the negative battery cable.
3. Drain the fluid.
Refer to “AT

Page 4171 of 4264

ISUZU TF SERIES 2004 Workshop Manual ON-VEHICLE SERVICE (JR405E) 7A3-19
Install or Connect
1. Align the manual valve and the manual plate of the
transmission case.
43ASSY119
2. Install the control valve assembly and tighten the 12

ON-VEHICLE SERVICE (JR405E) 7A3-19
Install or Connect
1. Align the manual valve and the manual plate of the
transmission case.
43ASSY119
2. Install the control valve assembly and tighten the 12
fixing bolts to the specified torque.

Number of bolts Length Color
10 (A) 40 mm (1.57 in) Gold
2 (B) 30 mm (1.18 in) Gold

Bolt torque : 8 N·m (69 lb·in)
3. Connect the 2 harness connectors.
4. If removed, install the oil strainer.
Refer to “Solenoids, Oil Pressure Switch and Oil
Temperature Sensor” previously in this section.
5. Install the new gasket and oil pan.
Bolt torque : 8 N·m (69 lb·in)
6. Fill the fluid.
Refer to “ATF CHANGE” in this section.
7. Connect the negative battery cable.
8. Remove the wheel blocks.

FLUSHING THE TRANSMISSION FLUID COOLER AND LINE
The fluid cooler and lines may be flushed under the
following condition. This will help prevent more trouble
after the transmission is repaired.
1. When the abnormal amount of debris are found.
2. When the abnormal wear or chips on gears and
shafts are found while overhauling.
3. When the abnormal clutch facing wear and oil
contamination are found.

Procedures
1. Block the wheels.
2. Disconnect negative battery cable.
3. Raise vehicle and support with suitable safety
stands.
4. Disconnect fluid cooler lines at transmission case
and fluid cooler.
5. Flush and back-flush the fluid cooler and lines using
solvent and compressed air.
Note:
DO NOT exceed 197 kPa (29 psi) air pressure or
damage may result to oil cooler.

6. Remove all remaining solvent from the system with
compressed air.
7. Flush the cooling system again with Automatic
Transmission Fluid (ATF).
After the final flush, connect all lines.
Cooler line joint connector torque :
44 N·m (33 lb·ft)
8. Replenish ATF
9. Start engine to test the system for the free flow o
f
fluid. If the flow is restricted, the cooler assembly o
r
lines must be replaced.
Repeated cleaning and flushing may not remove all
debris from the fluid cooler circuit.
Move the select lever through the various ranges and
return to neutral.
Check for fluid level.
If the fluid level is below the specified range, ATF
must be added.
10. Connect negative battery cable.
11. Remove safety stands.
12. Remove wheel blocks.

Page 4172 of 4264

ISUZU TF SERIES 2004 Workshop Manual 7A3-20 ON-VEHICLE SERVICE (JR405E)
TRANSMISSION ASSEMBLY
RTW37ALF001401
Legend
1. Shift Cable
2. Propeller Shaft
3. Engine Harness
4. ATF Level Dipstick
5. Under Cover
6. Bolt

7. ATF P

Page 4173 of 4264

ISUZU TF SERIES 2004 Workshop Manual ON-VEHICLE SERVICE (JR405E) 7A3-21
4. Remove the shift cable from the transmission.
P1010068
5. Remove the rear propeller shaft assembly.
6. Loosen (do not remove) the nuts securing the
exhaust

Page 4174 of 4264

ISUZU TF SERIES 2004 Workshop Manual 7A3-22 ON-VEHICLE SERVICE (JR405E)

4. Install the 3rd crossmember.
Bolt and Nut torque : 67 N·m (49 lb·ft)
Bolt torque : 50 N·m (37 lb·ft)
5. Install the automatic transmission fluid

Page 4175 of 4264

ISUZU TF SERIES 2004 Workshop Manual UNIT REPAIR (JR405E) 7A4-1
SECTION 7A4
UNIT REPAIR (JR405E)
TABLE OF CONTENTS
PAGE
Automatic Transmission Disassembly ..................................................................... 7A4

Page 4176 of 4264

ISUZU TF SERIES 2004 Workshop Manual 7A4-2 UNIT REPAIR (JR405E)

AUTOMATIC TRANSMISSION
DISASSEMBLY
Cleaning the automatic transmission
1. Use compressed steam and /or cleaning oil to thoroughly
clean the outside of the transmis

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