Daewoo Korando. Manual — part 257
AUTOMATIC TRANSMISSION 5A-71
Table 6.2.2 - Faulty Shift Patterns
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.
Possible Cause
Inhibitor switch fault, 1-2-3 only.
3-4 shift valve jammed.
Jammed band 1 release valve.
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.
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.
Symptom
1st,2nd and 4th
only or 1st,2nd,
and 3rd (tied up in
3rd)
Harsh 2-3 shift
Harsh 3-4 shift
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
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст