manual transaxle DAEWOO LACETTI 2004 Service Workshop Manual

5A2 – 4IAISIN AUTOMATIC TRANSAXLE
DAEWOO V–121 BL4
FASTENER TIGHTENING SPECIFICATIONS
ApplicationNSmLb–FtLb–In
Drain Plug1713–
Control Cable Adjusting Nut8–71
Shift Control Lever Assembly Mounting Bolts8–71
Manual Valve Lever Shaft Nut12–106
Transmission Range (TR) Switch Bolts5.4–48
Input Speed Sensor Retaining Bolt5.4–48
Output Speed Sensor Retaining Bolt7.4–65
TCM Retaining Bolts5–44
Fluid Cooler Inlet Pipe Fitting Nut3526–
Fluid Cooler Inlet Pipe Bolt9–80
Inlet Pipe Union Bolt3526–
Fluid Cooler Rear Outlet Pipe Fitting Nut3526–
Fluid Cooler Rear Outlet Pipe Clip Bolt9–80
Front Outlet Pipe Union Bolt3526–
Lower Transaxle–to–Engine Retaining Bolts (a)7354–
Lower Transaxle–to–Engine Retaining Bolts (b)3123–
Lower Transaxle–to–Engine Retaining Bolts (c)2115–
Upper Transaxle–to–Engine Mounting Bolts7354–
Upper Transaxle Mounting Bracket Bolts6044–
Rear Mounting Bracket Bolts6044–
Damping Block Connection Nut and Bolt8059–
Torque Converter Bolts4543–
Screw Plugs7.4–65
Transaxle Apply Clamp Bolt5.4–48
Oil Reservoir Lock Plate Bolts5.4–48
Transaxle Case Plate Bolt9.8–87
Transaxle Housing Bolts2922–
Manual Detent Spring Bolt9.8–87
Parking Lock Pawl Bracket Bolts7.4–65
Planetary Ring Gear Nut (Standard)9.8–87
Planetary Ring Gear Nut (Maximum)2922–
Transaxle Rear Cover Bolts2518–
Oil Pump Bolts2518–
Valve Body Bolts11–97
Oil Strainer Bolts9.8–87
Oil Pan Bolts7–62
Unions2518–
Stator Shaft Bolts2518–
Shift Solenoid Valve Bolts11–97
Differential Case–to–Differential Ring Gear Bolt10275–

5A2 – 20IAISIN AUTOMATIC TRANSAXLE
DAEWOO V–121 BL4
1. Transaxle Housing
2. Oil Seal
3. Oil Reservoir Plate
4. Transaxle Oil Apply Pipe
5. Differential Gear Oil Apply Pipe
6. Transaxle Oil Apply Pipe Clamp
7. Spring
8. Check Valve Pipe Clamp
9. Apply Gasket
10. Brake Drun Gasket
11. Transaxle Wire
12. O–ring
13. Valve Body
14. Parking Lock Pawl
15. Parking Lock Pawl Shaft
16. Torsion Spring
17. Manual Valve lever Shaft
18. Manual Valve Lever
19. Parking Lock Rod
20. Parking Lock Pawl Bracket
21. Manual Detent Spring
22. Pin
23. Spacer24. Oil Seal
25. Transmission Range (TR) Switch
26. Lock Washer
27. Control Lever
28. Washer
29. Gasket
30. Oil Strainer
31. Oil Pan
32. Gasket
33. Magnet
34. Direct Clutch Accumulator Piston
35. O–ring
36. Spring
37. O–ring
38. Forward Clutch Accumulator Piston
39. O–ring
40. Spring
41. O–ring
42. Overdrive Brake Accumulator Piston
43. O–ring
44. O–ring
45. Spring

5A2 – 30IAISIN AUTOMATIC TRANSAXLE
DAEWOO V–121 BL4
Manual Shifting Test
Manual shifting test is to determine whether failure symp-
tom is within electrical failure or mechanical failure.
1. Disconnect wire harness of shift solenoid, check
the range and gear positions correspond with below
table when driving by manual shifting.
Range
Gear
D3rd gear
RReverse
Notice : Make sure to disconnect only wire harness of shift
solenoid.
UNIT INSPECTION
Drive Plate Deflection
S Inspect drive plate deflection if within standard
value.
Standard Value
within 0.2mm (0.008 in)
Action :
Standard value is not within the specified value, replace
drive plate.
When ”abnormal wear” or ”stick” on torque converter
sleeve or oil pump is found, replace torque converter and
A/T.
Notice :
S When assembling torque converter and drive plate.
Be sure to use correct bolt with correct length. The
bolt pushes up torque converter front cover, and it
damages lock–up clutch lining. As a result, it cause
major failure ”No move”.
S Do not tighten the bolts by using impact wrench.
Cooler Pipe Bending and Choke
S Inspect it whether there is abnormal pipe bending in
the cooler pipe, pipe deformation and small cross–
section area of pipe line.
Action : Replace failure parts.S Apply compressed air of 2kg/cm
2 from cooler pipe
inlet side, inspect whether there is not cooler pipe
choke by confirming air flow smooth.
Action : Remove foreign particles and clean inside of pipe
line.
Normal
Vehicle Speed Sensor
1. Remove the connector of vehicle speed sensor,
connect 12V power supply and voltmeter to the ter-
minal.(Do not mistake polarity)
2. Check voltage change from approx. 0V to 12V with
vehicle speed sensor driven gear rotated.
Notice : The voltage change should be 4 times for 1 revo-
lution of the vehicle speed sensor driven gear.
Action : If the result of inspection is bad, replace the ve-
hicle speed sensor.

5A2 – 102IAISIN AUTOMATIC TRANSAXLE
DAEWOO V–121 BL4
3. Remove the E–ring.
4. Disconnect the shift control cable from the TR
switch lever.
5. Remove the retaining nut and then remove the
washer and the control lever.
6. Using a driver, unstake the lock washer and re-
move the nut.
Installation Procedure
1. Install the Transmission Range (TR) switch onto the
manual valve lever shaft and temporarily install the
2 adjusting bolts.
2. Install the new lock washer and nuts.
Tighten
Tighten the nuts to 12 NSm (106 Ib–in).
3. Temporarily install the control lever.
4. Turn the lever counterclockwise until it stops, then
turn it clockwise 2 notches.
5. Remove the control lever.

5A2 – 120IAISIN AUTOMATIC TRANSAXLE
DAEWOO V–121 BL4
22. Disconnect the manual valve control rod from the
manual valve lever, then remove the valve body
assembly.
23. Remove the check valve and spring.
24. Remove the brake drum gasket.
25. Remove the apply gasket.

5A2 – 130IAISIN AUTOMATIC TRANSAXLE
DAEWOO V–121 BL4
65. Remove the planetary ring gear nut using planetary
ring gear nut removal/installation socket DW
260–041.
Notice : Remove the nut without unstaking the planetary
ring gear. If chisel or other tool is used to unstake the plan-
etary ring gear, such impact may damage the bearing.
66. Remove the 2 bolts and parking lock pawl bracket.
67. Remove the parking lock pawl shaft, torsion spring
and parking lock pawl.
68. Remove the bolt and manual detent spring.

AISIN AUTOMATIC TRANSAXLE 5A2 – 131
DAEWOO V–121 BL4
69. Using a chisel and hammer, unstake and remove
the spacer.
70. Using a pin punch and hammer, drive out the pin.
71. Remove the manual valve lever shaft and manual
valve lever.
72. Remove the parking lock rod from the manual valve
lever.

5A2 – 146IAISIN AUTOMATIC TRANSAXLE
DAEWOO V–121 BL4
41. Install the parking lock rod to the manual valve le-
ver.
42. Install a new spacer to the manual valve lever.
43. Install the manual valve lever shaft and manual
valve lever.
44. Using a pin punch and hammer, drive in a new pin.

AISIN AUTOMATIC TRANSAXLE 5A2 – 147
DAEWOO V–121 BL4
45. Turn the spacer and lever shaft to align the small
hole for locating the staking position in the spacer
with the staking position mark on the lever shaft.
46. Using a pin punch, stake the spacer through the
small hole.
47. Check that the spacer does not turn.
48. Install the manual detent spring with the bolt.
Tighten
Tighten the bolts to 9.8 NSm (87 lb–in).
49. Install the parking lock shaft, torsion spring and
parking lock pawl.
Notice : Check that the edge of torsion spring fits into the
groove securely.

5A2 – 162IAISIN AUTOMATIC TRANSAXLE
DAEWOO V–121 BL4
114. Connect the manual valve control rod to the
manual valve lever as shown in the illustration.
115. Install the valve body assembly to the trans-
axle case.
Tighten
Tighten the bolts to 11 NSm (97 lb–in).
Notice : When installing the valve body to the transaxle
case, do not let each of accumulator pistons B1,C1,and
C2 incline. When installing the valve body to the transaxle
case, do not hold the solenoids.
116. Connect the transaxle wire connector and har-
ness to the valve body assembly.
117. Connect the 5 connectors.
a. Lock–up control solenoid
b. Pressure control solenoid.
c. No.2 shift solenoid.
d. No.1 shift solenoid.
e. Timing solenoid
118. Install the TFT sensor with clamp.
Notice : Make sure that the transaxle wire does not come
out from the oil pan installation surface.
119. Install a new gasket to the oil strainer.