SUBARU LEGACY 1997 Service Repair Manual

G3M0856
Oil pump housing
Oil pump housing (Defective casting)
O-ring on the test plugs
Checking blind plugs
Differential gear breather
G3M0857
Automatic transmission case
Transmission case (Defective casting)
Mating surface of oil pan
O-ring on the test plugs
Checking blind plugs (Steel balls)
Oil supply pipe connector
ATF cooler pipe connector and gasket
Oil pan drain plug
O-ring on the transmission harness holder
Oil pump plugs
ATF breather
Shift lever oil seal
G3M0858
Extension case
Extension case (Defective casting)
O-ring on the vehicle speed sensor
Rear drive shaft oil seal
Checking blind plugs (Steel ball)
O-ring on the test plugs
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G3M0859
Transmission cover
Transmission cover (Defective casting)
The point listed above should be checked for fluid leak.
Checking method is as follows:
(1) Place the vehicle in the pit, and check whether the
leaking oil is ATF or not. The ATF is wine red in color,
and can be discriminated easily from engine oil and
gear oil.
(2) Wipe clean the leaking oil and dust from a suspect-
able area, using a non-inflammable organic solvent
such as carbon tetrachloride.
(3) Run the engine to raise the fluid temperature, and
set the selector lever to“D”in order to increase the fluid
pressure and quickly detect a leaking point. Also check
for fluid leaks while shifting select lever to“R”,“2”, and
“1”.
G3M0289
B: ADJUSTMENT
1. BRAKE BAND
If the following abnormal shifting conditions are noted in a
road test, the brake band must be adjusted.
Improper brake band clearances and their symptoms
Clearance Problem
1. Too wide Upshift from 1st directly to 3rd gear occurs.
2. WideEngine rpm increases abruptly while upshifting from 1st
to 2nd gear or 3rd to 4th gear.
Time lag of at least one second occurs during kickdown
operation from 3rd to 2nd gear.
3. Small“Braking”symptom occurs while upshifting from 2nd to 3rd
gear.
4. Too smallUpshifts from 2nd to 4th gear and downshifts from 4th to
2nd gear occur repeatedly.
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G3M0290
Adjustment of the adjusting screw
1) Using a ST, immobilize the end of the 10 mm-screw
projecting on the left side of the transmission case, and
loosen the nut with a double-end wrench.
In the case of occurrence of problems 2. and 3. mentioned
previously, perform the adjustment by loosening or tighten-
ing the nut within a range of 3/4 turn from this state.
ST 398603610 SOCKET WRENCH
CAUTION:
Do not loosen excessively; otherwise, the band strut
on the servo piston will drop off.
G3M0290
2) In case of the occurrence of problems 1. and 4. men-
tioned previously, perform the adjustment as follows:
Adjusting procedure: Tighten adjust screw to 9 N⋅m (0.9
kg-m, 6.5 ft-lb) torque, then back off three turns.
CAUTION:
Do not tighten the adjusting screw with an excessively
large torque.
G3M0289
3) With the adjusting screw immobilized, tighten the lock
nut.
Tightening torque:
26±2 N⋅m (2.7±0.2 kg-m, 19.5±1.4 ft-lb)
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G3M0291
2. INHIBITOR SWITCH
The inhibitor switch allows the back-up lights to turn on
when the select lever is in the R range and the starter
motor to start when the lever is in the N or P range.
When driving condition or starter motor operation is
erroneous, first check the shift linkage for improper opera-
tion. If the shift linkage is functioning properly, check the
inhibitor switch.

(1) Disconnect cable end from select lever.
(2) Disconnect inhibitor switch side connector.
(3) Check continuity in inhibitor switch circuits with
select lever moved to each position.
CAUTION:
Also check that continuity in ignition circuit does not
exist when selector lever is in R, D, 3, 2 and 1 ranges.
NOTE:
If inhibitor switch is inoperative, check for poor contact of
connector on transmission side. (Plastic body type inhibi-
tor switch)
PinNo. 432187651211109
Lead color
B Y Br YG W BY R GW BY BW BW RW
Position
P





R




N




D


3


2


1


Signal sent to AT control unit Ignition circuitBack-up light
circuit
B3H0016A
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G3M0293
(4) Check if there is continuity at equal points when the
select lever is turned 1.5°in both directions from the N
range.
If there is continuity in one direction and the continuity
in the other or if there is continuity at unequal points,
adjust the inhibitor switch.
G3M0294

(1) Loosen the three inhibitor switch securing bolts.
(2) Shift the select lever to the N range.
(3) Insert ST as vertical as possible into the holes in
the inhibitor switch lever and switch body.
ST 499267300 STOPPER PIN
(4) Tighten the three inhibitor switch bolts.
Tightening torque:
3.4±0.5 N⋅m (0.35±0.05 kg-m, 2.5±0.4 ft-lb)
(5) Repeat the above checks. If the inhibitor switch is
determined to be“faulty”, replace it.
G3M0295
3. SENSOR (IN TRANSMISSION)
Check each sensor, solenoid and ground system for short
circuits.
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Standard values
Part name Terminal Resistance (Ω)
Vehicle speed sensor 1 9—16 450—720
ATF temperature sensor 5—12 [2,100—2,900/20°C (68°F) 275—375/80°C (176°F)]
Duty solenoid A
(Line pressure solenoid)7—4, 8 1.5—4.5
Duty solenoid B
(Lock-up solenoid)6—4, 8 9—17
Shift solenoid 1 3—4, 8 20—32
Shift solenoid 2 2—4, 8 20—32
Shift solenoid 3 1—4, 8 20—32
Duty solenoid C (AWD only)
(Transfer clutch solenoid)11—4, 8 9—17
NOTE:
If part is faulty, its resistance value will be different from the
standard value indicated above.
B3M0112A
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G3M0297
C: REMOVAL AND INSTALLATION
1. SHIFT SOLENOID, DUTY SOLENOID AND VALVE
BODY
1) Removal
(1) Clean transmission exterior.
(2) Drain ATF completely.
NOTE:
Tighten ATF drain plug after draining ATF.
Tightening torque:
25±2 N⋅m (2.5±0.2 kg-m, 18.1±1.4 ft-lb)
G3M0861
(3) Remove oil pan and gasket.
NOTE:
Drain oil into a container.
(4) Disconnect solenoid valve connectors.
Remove connectors from clips and disconnect connec-
tors at 4 places.
G3M0862
(5) Remove oil strainer.
Disconnect oil pipe by removing the two bolts, and
remove four bolts and oil strainer.
NOTE:
Be careful because oil flows from oil strainer.
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G3M0863
(6) Remove control valve body and two brackets.
Remove 6 long bolts (Black) and 11 short bolts (Yellow).
NOTE:
Be careful because oil flows from valve body.
Be careful not to damage accumulator spring at rear of
control valve.
G3M0864
(7) Remove shift solenoids 1, 2, and 3, and duty sole-
noid A.
a length : 16 mm (0.63 in)
b length : 27 mm (1.06 in)
(8) Remove duty solenoid B.
G3M0302
2) Installation
(1) Install duty solenoid B (lock-up).
Tightening torque:
11.3±1.5 N⋅m (1.15±0.15 kg-m, 8.3±1.1 ft-lb)
G3M0864
(2) Install solenoid valves.
Shift solenoids, 1, 2 and 3, and duty solenoid A (line
pressure).
Tightening torque:
8±1 N⋅m (0.8±0.1 kg-m, 5.8±0.7 ft-lb)
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G3M0950
(3) Install valve body and two brackets.
Tightening torque:
8±1 N⋅m (0.8±0.1 kg-m, 5.8±0.7 ft-lb)
NOTE:
Secure accumulator springs using vaseline.
Align manual valve connections.
G3M0862
(4) Install oil strainer.
Also install oil pipe and harness connector bracket.
Tightening torque:
8±1 N⋅m (0.8±0.1 kg-m, 5.8±0.7 ft-lb)
G3M0861
(5) Connect harness connectors at 4 places.
Connect connectors of same color, and secure connec-
tors to valve body using clips.
G3M0865
(6) Install oil pan and gasket.
Tightening torque:
4.9±0.5 N⋅m (0.50±0.05 kg-m, 3.6±0.4 ft-lb)
G3M0282
(7) Add ATF and check level.
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G3M0304
2. DUTY SOLENOID C AND TRANSFER VALVE BODY
1) Removal
(1) Remove pitching stopper.
G3M0297
(2) Raise vehicle and drain ATF.
G3M0305
(3) Remove front exhaust pipe.
Disconnect oxygen sensor connector, and remove
exhaust pipe.
G3M0782
(4) Remove propeller shaft.
NOTE:
Before removing propeller shaft, scribe matching marks on
propeller shaft and rear differential coupling.
G3M0306
(5) Remove rear crossmember.
Support transmission using a transmission jack and
raise slightly.
Remove bolts and nuts as shown in Figure.
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