Part 1
Transmission Assembly: Disassembly
Part 1
CAUTION:
Do not disassemble parts behind Drum Support. Refer to [Cross-Sectional View] Cross-Sectional View.
1) Drain A/T fluid through drain plug.
2) Remove torque converter by holding it firmly and turning while pulling straight out.
3) Check torque converter one-way clutch using a check tool as shown.
a) Insert a check tool into the groove of bearing support built into one-way clutch outer race.
b) While holding bearing support with a check tool, rotate one-way clutch spline using suitable tool.
c) Make sure that inner race rotates clockwise only. If not, replace torque converter assembly.
4) Remove bolts and converter housing from transmission case.
CAUTION:
Do not scratch converter housing.
- Self-sealing bolt (A)
5) Remove O-ring from input clutch assembly.
CAUTION:
Do not reuse O-ring.
6) Remove oil pump assembly to transmission case bolts.
7) Remove the oil pump assembly evenly from the transmission case using Tools.
CAUTION:
- Fully tighten the sliding hammer screws.
- Make sure that bearing race is installed to the oil pump assembly edge surface.
8) Remove O-ring from oil pump assembly.
CAUTION:
Do not reuse O-ring.
9) Remove bearing race from oil pump assembly.
10) Remove needle bearing from front sun gear.
11) Remove front sun gear assembly from front carrier assembly.
NOTE:
Remove front sun gear by rotating it left and right.
12) Remove seal rings from input clutch assembly.
13) Remove front carrier assembly (with input clutch assembly and rear internal gear) from rear carrier assembly.
CAUTION:
Do not remove it with needle bearing.
14) Loosen lock nut and remove band servo anchor end pin from transmission case.
15) Remove brake band from transmission case.
CAUTION:
- To prevent brake linings from cracking or peeling, do not stretch the flexible band unnecessarily. When removing the brake band, always secure it with a clip as shown.
- Check brake band facing for damage, cracks, wear or burns.
16) Remove mid carrier assembly and rear carrier assembly as a unit.
17) Remove mid carrier assembly from rear carrier assembly.
18) Remove needle bearing (front side) from mid carrier assembly.
19) Remove needle bearing (rear side) from mid carrier assembly.
20) Remove bearing race from rear carrier assembly.
21) Remove needle bearing from rear carrier assembly.
22) Remove mid sun gear assembly, rear sun gear assembly and high and low reverse clutch hub as a unit.
CAUTION:
Remove them with bearing race and needle bearing.
23) Remove high and low reverse clutch assembly from direct clutch assembly.
CAUTION:
Make sure that needle bearing is installed to the high and low reverse clutch assembly edge surface.
24) Remove needle bearing from drum support.
25) Remove direct clutch assembly from reverse brake.
26) Remove snap ring from A/T assembly harness connector.
27) Push A/T assembly harness connector.
CAUTION:
Do not damage connector.
28) Remove oil pan and oil pan gasket. Refer to [Oil Pan: Removal and Installation] Service and Repair.
29) Check foreign materials in oil pan to help determine causes of malfunction. If the A/T fluid is very dark, smells burned, or contains foreign particles, the frictional material (clutches, band) may need replacement. A tacky film that will not wipe clean indicates varnish build up. Varnish can cause valves, servo, and clutches to stick and can inhibit pump pressure.
- If frictional material is detected, perform A/T fluid cooler cleaning. Refer to [A/T Fluid Cooler Cleaning] Procedures.
30) Remove magnets from oil pan.
31) If an A/T fluid temperature sensor 2 is attached, disconnect the A/T fluid temperature sensor 2 connector as shown below.
a) Disconnect A/T fluid temperature sensor 2 connector (A).
CAUTION:
Do not damage connector.
b) Straighten terminal clips () to free terminal cord assembly and A/T fluid temperature sensor 2 harness.
32) Disconnect output speed sensor connector (1).
CAUTION:
Do not damage connector.
33) Straighten terminal clip () to free output speed sensor harness.
34) Remove bolts (A), (B) and (C) from control valve with TCM.
35) Remove control valve with TCM from transmission case.
CAUTION:
When removing, be careful with the manual valve notch and manual plate height. Remove it vertically.
36) Remove the A/T fluid temperature sensor 2 or plug as shown below.
a) A/T fluid temperature sensor 2
i) Remove A/T fluid temperature sensor 2 with bracket from control valve with TCM.
ii) Remove bracket from A/T fluid temperature sensor 2.
b) Plug
i) Remove plug (1) with bracket (2) from control valve with TCM.
ii) Remove bracket (1) from plug (2).
iii) Remove O-ring (1) from plug (2).
CAUTION:
Do not reuse O-ring.
37) Remove O-ring from A/T assembly harness connector.
CAUTION:
Do not reuse O-ring.
38) Disconnect TCM connectors.
CAUTION:
Do not damage connectors.
39) Remove A/T assembly harness connector from control valve with TCM using suitable tool.
40) Disconnect TCM connector (1) and transmission range switch connector (2).
CAUTION:
Do not damage connectors.
41) Remove rear extension assembly (2WD models) or adapter case assembly (4WD models) according to the following procedures.
a) 2WD models
i) Remove tightening bolts for rear extension assembly and transmission case.
- Bracket (1)
- Bracket (2)
- Self-sealing bolts (3)
- Bolt (A)
ii) Tap rear extension assembly with soft hammer.
iii) Remove rear extension assembly (with needle bearing) from transmission case.
b) 4WD models
i) Remove adapter case to transmission case bolts and terminal bracket (2).
- ; Front (1)
- Self-sealing bolt (3)
ii) Tap adapter case assembly using suitable tool.
iii) Remove adapter case assembly (with needle bearing) from transmission case.
iv) Remove gasket from transmission case.
