Daewoo MUSSO Service Manual page 1050

Table 6.2.2 - Faulty Shift Patterns
Symptom
1st,2nd and 4th Inhibitor switch fault, 1-2-3 only.
only or 1st,2nd,
and 3rd (tied up in 3-4 shift valve jammed.
3rd)
Jammed band 1 release valve.
Harsh 2-3 shift
Faulty S3 or S2 solenoid.
Faulty clutch apply regulator valve.
Missing or damaged clutch apply feed ball.
Damaged input shaft sealing rings.
Damaged C1 piston 'O' rings.
Damaged or dislodged C1 piston bleed
ball.
Faulty S1 or S4 solenoid.
Harsh 3-4 shift
Jammed band 1 release valve.
Incorrect front band adjustment.
Damaged front servo piston 'O' rings.
Faulty or damaged variable pressure
solenoid (S5).
Faulty band apply regulator valve.
Possible Cause
AUTOMATIC TRANSMISSION 5A-71
Action
Inspect inhibitor switch. Repair or replace as
necessary.
Inspect the 3-4 shift valve. Repair or replace
as necessary.
Inspect the release valve. Repair or replace as
necessary.
Inspect S3 or S2. Repair or replace as neces-
sary.
Inspect the regulator valve. Repair or replace
as necessary.
Inspect the ball. Refit or replace as necessary.
Inspect the sealing rings. Refit or replace as
necessary.
Inspect the 'O' rings. Refit or replace as neces-
sary.
Inspect the bleed ball. Refit or replace as nec-
essary.
Inspect S1 or S4. Repair or replace as neces-
sary.
Inspect the release valve. Repair or replace as
necessary.
Inspect the band. Adjust as necessary.
Inspect the 'O' rings. Refit or replace as neces-
sary.
Inspect S5. Repair or replace as necessary.
Inspect the regulator valve. Repair or replace
as necessary.