Daewoo MUSSO Service Manual page 1051

5A-72 AUTOMATIC TRANSMISSION
Symptom
All Shifts Firm Incorrect auto transmission fluid (ATF).
S5 faulty won, or incorrectly fitted.
Band apply and clutch apply regulator
springs misplaced.
Manual 4-3-2-1 is
Over-run clutch (OC)/Low-1st ball
soft delayed or misplaced.
missing
C4 clutch worn or burnt.
C4 wave plate not lined up with the holes
in the piston.
C4 wave plate failed.
Firm 1-2 Hot S5 worn.
S5 damper spring broken.
Front servo belleville spring broken.
4th Tied up
Incorrect C4 pack clearance.
Damaged C4 clutch.
Cracked C2 piston (leaking into C4).
Tied up on 2-3 Incorrect band adjustment
Front servo plastic plug missing
B1R spring broken.
Flare on 2-3
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.
Slips in 4th C1/B1R ball misplaced.
Overdrive or input shaft sealing rings dam-
aged.
C1 clutch damaged.
Flare on 4-3, Flare
4-3 sequence valve in backwards.
on 3-2
Firm Manual low
Low-1st check ball misplaced.
shift-high line
press.
Possible Cause 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.