Daewoo Musso. Manual - part 260

5A-72  AUTOMATIC TRANSMISSION

Action

Drain and fill with specified ATF.

Check that S5 is fitted correctly, or replace S5.

Inspect band apply and clutch apply regulator

springs. Refit or replace as necessary.

Inspect the ball. Refit or replace as necessary.

Inspect C4 clutch. Replace or repair as neces-

sary.

Check the alignment. ]Realign as necessary.

Inspect wave plate. Replace as necessary.

Inspect S5 and replace as necessary.

Inspect the damper spring and replace as nec-

essary.

Replace spring as necessary.

Check the clearance and adjust as necessary.

Inspect C4. Repair or replace as necessary.

Inspect piston. Repair or replace as necessary.

Inspect and adjust band as necessary.

Replace the plug.

Replace the spring.

Replace the spring/plug.

Refit the ball.

Inspect the clutch. Repair the clutch as neces-

sary.

Inspect and clean C1 feed.

Replace the piston.

Inspect and replace the sealing rings and/or

shaft as necessary.

Inspect and replace the ball.

Inspect and replace the sealing rings and/or

shaft as necessary.

Inspect and repair the C1 clutch as necessary.

Refit the valve.

Replace the ball.

Possible Cause

Incorrect auto transmission fluid (ATF).

S5 faulty won, or incorrectly fitted.

Band apply and clutch apply regulator

springs misplaced.

Over-run clutch (OC)/Low-1st ball

misplaced.

C4 clutch worn or burnt.

C4 wave plate not lined up with the holes

in the piston.

C4 wave plate failed.

S5 worn.

S5 damper spring broken.

Front servo belleville spring broken.

Incorrect C4 pack clearance.

Damaged C4 clutch.

Cracked C2 piston (leaking into C4).

Incorrect band adjustment

Front servo plastic plug missing

B1R spring broken.

B1R spring/plug left out.

C1/B1R ball misplaced.

C1 clutch damaged.

Restriction in C1 feed.

C1 piston check ball jammed.

Overdrive or input shaft sealing rings dam-

aged.

C1/B1R ball misplaced.

Overdrive or input shaft sealing rings dam-

aged.

C1 clutch damaged.

4-3 sequence valve in backwards.

Low-1st check ball misplaced.

Symptom

All Shifts Firm

Manual 4-3-2-1 is

soft delayed or

missing

Firm 1-2 Hot

4th Tied up

Tied up on 2-3

Flare on 2-3

Slips in 4th

Flare on 4-3, Flare

on 3-2

Firm Manual low

shift-high line

press.

AUTOMATIC TRANSMISSION  5A-73

Table 6.2.3 - Shift Quality Faults

Action

Check the resistance. Replace the inhibitor

switch as necessary.

Inspect and replace the sensor as necessary.

Inspect and adjust the band as necessary.

Inspect and replace the’0’rings as necessary.

Inspect, repair or replace S5 as necessary.

Inspect, repair or replace S1 or S4 as  neces-

sary.

Inspect, repair or replace the BAR as neces-

sary.

Inspect and repair as necessary.

Inspect and clean CCCV.

Inspect, repair or replace as necessary.

Possible Cause

Faulty inhibitor switch.

Faulty throttle position sensor.

Incorrect front band adjustment.

Damaged front servo piston’0’rings.

Faulty or damaged variable pressure so-

lenoid (S5).

Faulty S1 or S4 solenoid.

Faulty band apply regulator valve (BAR).

Misassembled front servo return spring.

Jammed converter clutch control valve

(CCCV).

Faulty solenoid 7.

Symptom

Harsh 1-2 shift

stalls when Drive

or Reverse

selected Shudder

on Rolldown

5A-74  AUTOMATIC TRANSMISSION

Action

Inspect, repair C2 and adjust the linkage as neces-

sary.

Repair C2. Inspect, repair or replace S6 as neces-

sary.

Repair C2. Inspect, replace the sealing rings and/

or shaft as necessary.

Repair C2. Inspect, repair or replace the C2 piston

as necessary.

Inspect C4 and repair as necessary.

Inspect and adjust the C4 pack clearance as nec-

essary.

Repair C4. Inspect and replace the wave plate as

necessary.

Repair C4. Inspect and realign the wave plate as

necessary.

Repair C4. Inspect and realign the sealing rings

and/or shaft as necessary.

Repair C4. Inspect and refit the OWC as neces-

sary.

Repair C4. Inspect and replace the C2 piston as

necessary.

Repair C4. Inspect and refit the ball as necessary.

Inspect and repair B1 and replace the spring as

necessary.

Replace sealing ring.

Repair B1. Refit the ball as necessary.

Inspect and repair C1 and replace the spring.

Repair C1. Inspect and replace the sealing tongs

and/or shaft as necessary.

Repair C1. Inspect and replace the C1 piston as

necessary.

Repair C1. Inspect and refit the capsule as neces-

sary.

Repair C1. Inspect and refit the valve as neces-

sary.

Repair C1. Inspect and replace the ball as neces-

sary.

Inspect and adjust the band as necessary.

Inspect and refit the ball as necessary.

Inspect and replace the ‘O’ ring as necessary.

Inspect and refit the valve as necessary.

Inspect and replace the ‘O’ ring as necessary.

Inspect and refit the valve as necessary.

Possible Cause

T-bar linkage out of adjustment.

56 foiled - stuck low.

Overdrive/output shaft sealing rings damaged.

C2 piston cracked.

Incorrect C4 pack clearance.

C4 wave plate broken.

C4 wave plate not lined up properly.

Overdrive or output shaft sealing rings dam-

aged.

3-4 one way clutch (OWC) in backwards.

C2 piston cracked.

Over-run clutch (OC)/low-1st ball misplaced.

B1R spring broken.

Input shaft sealing ring cut.

C1/B1R ball misplaced.

B1R spring left out.

Overdrive or input shaft sealing rings damaged.

C1 piston cracked.

Ball capsule jammed.

4-3 sequence valve in backwards.

Clutch apply feed (CAF)/B1R ball left out.

Rear band incorrectly adjusted or damaged.

Reverse-low/first ball misplaced.

Input shaft ‘O’ ring missing or damaged.

Converter clutch regulator valve in backwards.

Input shaft ‘O’ ring missing or damaged.

C1 bias valve in backwards.

Symptom

C2 burnt

C4 burnt

B1 burnt

C1 burnt

Slips in reverse -

no manual 1st

Firm converter

lock or unlock

No lock up at light

throttle

Table 6.2.4 - After Teardown Faults

AUTOMATIC TRANSMISSION  5A-75

SELF DIAGNOSIS TEST

1. Turn the ignition switch to “OFF” position.

2. Connect the scanner harness connector to the engine

compartment diagnosis socket.

3. Turn the ignition switch to “ON” position.

4. Select “Electronics control vehicle diagnosis” from the

function selection display and press “Enter”.

5. Select “Musso(98 face lift)” from the vehicle model selection

model selection display and press “Enter”.

6. Select “Transmission control unit(TCU)” from the control

system selection and press “Enter”.

7. Select “Self-diagnosis” from diagnosis items.

Notice

Check sensor output value displays if necessary.

8. Determine the fault code and check the detective Items.

Notice

Refer to sefadf3fnosfs list.