aisin automatic transaxle DAEWOO LACETTI 2004 Service Repair Manual

AISIN AUTOMATIC TRANSAXLE 5A2 – 97
DAEWOO V–121 BL4
MAINTENANCE AND REPAIR
ON–VEHICLE SERVICE
TRANSAXLE FLUID LEVEL
CHECKING PROCEDURE
Notice : Check the fluid level when the transaxle tempera-
ture is 70°C~80°C (158°F~176°F).
Notice : During the fluid level check, the selector lever
must be in position P.
Notice : When adding fluid or making a complete fluid
change, always use ISU DEXRON III. Failure to use the
proper fluid will cause hose and seal damage and fluid
leaks.
1. Make sure the vehicle is level.
2. Shift into all range from ”P” to ”1” and return to ”P”
with engine idling.
3. Remove the transaxle fluid dipstick and check the
transaxle fluid level.
4. The correct fluid level must be between the HOT
MIN and the HOT MAX notches on the dipstick.
5. If the fluid level is below the MIN notch, add trans-
axle fluid through the fluid filler tube and check for
leaks in the transaxle.
6. If the fluid above the MAX notch, the transaxle is
overfilled. Drain some of the fluid through the fluid
pan drain plug. Check the transaxle fluid level.
FLUID DRAIN PROCEDURE
Draining Procedure
1. Raise and support the vehicle. Refer to ”Vehicle
Lifting Procedures,” Section 0B, General Informa-
tion.
2. Place a suitable fluid drainage container under the
transaxle.
3. Remove the fluid drain plug. allow the fluid to drain
completely.
4. Clean the drain plug threads.
5. Install the fluid drain plug.
Tighten
Torque the fluid drain plug to 17 NSm (13 Ib–ft).

5A2 – 98IAISIN AUTOMATIC TRANSAXLE
DAEWOO V–121 BL4
Filling Procedure
1. Remove the drainage container and lower the ve-
hicle.
2. Add three–fourths of the recommended amount of
ISU DEXRON III.
3. Start the engine and allow it to reach normal oper-
ating temperature.
4. Shift the gear selector through all positions.
5. Check the fluid level and add fluid until the dipstick
indicates a safe level.
LOCATING FLUID LEAKS
General Method
1. Verify that the material leaking is transaxle fluid.
2. Thoroughly clean the suspected leak area.
3. Allow the transaxle to reach the normal operating
temperature of 176–194°F (80–90°C).
4. Park the vehicle over a clean paper or a clean card-
board.
5. Turn the engine OFF and look for fluid spots on the
paper.
6. Make the necessary repairs to correct that leak.
Powder Method
1. Thoroughly clean the suspected leak area.
2. Apply an aerosol type powder, such as foot powder,
to the suspected leak area.
3. Allow the transaxle to reach the normal operating
temperature of 176–194°F (80–90°C).
4. Turn the engine OFF.
5. Inspect the suspected leak area and trace the leak
path through the powder to find the source of the
leak.
6. Make the necessary repairs to correct the leak.
Once the leak point is found, the source of the leak must
be determined and repaired.
CASE PORSITY REPAIR
1. Determine the leak area. Refer to ”Locating Fluid
Leaks” in this section.
2. Clean the leak area with the solvent. Air dry.
CAUTION : Epoxy cement may cause skin irritations
and eye damage. Read and follow all information on
the container label as provided by the manufacturer.
3. Mix a sufficient amount of epoxy cement following
the manufacturer’s recommendations.
4. While the transaxle case is hot, apply epoxy ce-
ment with a clean, dry soldering acid brush.
5. Allow the epoxy cement to dry for 3 hours before
starting the engine.

AISIN AUTOMATIC TRANSAXLE 5A2 – 99
DAEWOO V–121 BL4
FLUID COOLER FLUSHING
Flushing Procedure
1. Drain the fluid from the transaxle and refill the
transaxle with new transaxle fluid. Refer to ”Fluid
Drain Procedure” in this section.
2. Let the engine idle for 5 minutes.
3. Drain the fluid from the transaxle and refill the
transaxle with new transaxle fluid. Refer to ”Fluid
Drain Procedure” in this section.
CONTROL CABLE ADJUSTMENT
Adjustment Procedure
The various shift control cable positions must match at the
shift control lever in the vehicle and at the selector lever
on the transaxle to provide proper transaxle shifting.
Place the shift control lever in the PARK position and
check the selector lever connection to verify that it is in the
forward most position. If it is not, the following adjustment
must be performed:
1. Disconnect the negative battery cable.
2. Remove the floor console. Refer to Section 9G,
Interior Trim.
3. Place the shift control lever in the PARK position.
4. Loosen the control cable adjusting nut.
5. Move the Transmission Range (TR) switch lever
counterclockwise until stopping the lever.

5A2 – 100IAISIN AUTOMATIC TRANSAXLE
DAEWOO V–121 BL4
6. Pull the shift control cable until it is tight and tighten
the control cable adjusting nut.
Tighten
Tighten the control cable adjusting nut to 8 NSm (71
Ib–in).
7. Install the floor console. Refer to Section 9G, Interi-
or Trim.
8. Connect the negative battery cable.
SHIFT CONTROL LEVER ASSEMBLY
Removal Procedure
1. Disconnect the negative battery cable.
2. Remove the floor console. Refer to Section 9G,
Interior Trim.
3. Disconnect the wiring harness connectors from the
shift control lever.
4. Loosen the control cable adjusting nut.
5. Disconnect the control cable from the shift control
lever assembly.
6. Remove the shift control lever assembly mounting
bolts and nuts.
7. Remove the shift control lever assembly.

AISIN AUTOMATIC TRANSAXLE 5A2 – 101
DAEWOO V–121 BL4
Installation Procedure
1. Install the shift control lever assembly and mount-
ing bolts and nuts.
Tighten
Tighten the shift control lever assembly mounting
bolts and nuts to 8 NSm (71 Ib–in).
2. Connect the control cable to the shift control lever
assembly.
3. Tighten the control cable adjusting nut.
Tighten
Tighten the control cable adjusting nut to 8 NSm (71
Ib–in).
4. Connect the harness connector.
5. Adjust the control cable. Refer to ”Control Cable
Adjustment” in this section.
6. Install the floor console. Refer to Section 9G, Interi-
or Trim.
7. Connect the negative battery cable.
TRANSMISSION RANGE (TR)
SWITCH
Removal Procedure
1. Disconnect the negative battery cable.
2. Disconnect the Transmission Range (TR) switch
electrical connector from the wiring harness.

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.

AISIN AUTOMATIC TRANSAXLE 5A2 – 103
DAEWOO V–121 BL4
6. Aligh the groove with the neutral basic line, then
install the 2 bolts.
Tighten
Tighten the 2 bolts to 5.4 NSm (48 Ib–in).
7. Using a screw driver, stake the nut with the lock
washer.
8. Install the control lever, washer and nut.
Tighten
Tighten the nut to 12 NSm (106 Ib–in).
9. Connect the control cable to TR switch.
10. Connect the TR switch electrical connector.
11. Adjust the control cable. Refer to ”Control Cable
Adjustment” in this section.
12. Install the control cable adjusting nut.
Tighten
Tighten the control cable adjusting nut to 8 NSm (71
Ib–in).
13. Connect the negative battery cable.

5A2 – 104IAISIN AUTOMATIC TRANSAXLE
DAEWOO V–121 BL4
SHIFT CONTROL CABLE
Removal Procedure
1. Disconnect the negative battery cable.
2. Remove the floor console. Refer to Section 9G,
Interior Trim.
3. Remove the cable adjusting nut.
4. Disconnect the shift control cable from the shift
control lever assembly.
5. Remove the shift control cable retaining E–ring.
6. Disconnect the shift control cable from the TR
switch.
7. Remove the E–ring from the shift control cable
bracket and disconnect the shift control cable.
8. Disconnect the shift control cable from the shift
control cable fastener.
9. Remove the shift control cable from the vehicle.
Installation Procedure
1. Install the shift control cable to the vehicle.
2. Connect the shift control cable to the shift control
cable fastener.
3. Install the E–ring to the shift control cable bracket
and connect the shift control cable.

AISIN AUTOMATIC TRANSAXLE 5A2 – 105
DAEWOO V–121 BL4
4. Connect the shift control cable to the TR switch.
5. Install the shift control cable retaining E–ring.
6. Connect the shift control cable to the shift control
lever assembly.
7. Install the cable adjusting nut.
Tighten
Tighten the cable adjusting nut to 8 NSm (71 Ib–in).
8. Install the trim panel to the floor console. Refer to
Section 9G, Interior Trim.
9. Connect the negative battery cable.
SHIFT SELECT COVER
Removal Procedure
1. Disconnect the negative battery cable.
2. Remove the floor console. Refer to Section 9G,
Interior Trim.
3. Remove the shift select lever knob.
4. Disconnect the connectors.
5. Remove the shift select cover from the shift select
housing.

5A2 – 106IAISIN AUTOMATIC TRANSAXLE
DAEWOO V–121 BL4
Installation Procedure
1. Connect the connectors to the shift select cover.
2. Install the shift select cover to the housing.
3. Install the shift select lever knob.
4. Install the floor console. Refer to Section 9G, Interi-
or Trim.
5. Connect the negative battery cable.
INPUT SHAFT SPEED (ISS) SENSOR
Removal Procedure
1. Disconnect the negative battery cable.
2. Disconnect the input shaft speed (ISS) sensor elec-
trical connector.
3. Remove the ISS sensor retaining bolt.
4. Remove the ISS sensor from the transaxle.