1997 SUBARU LEGACY service

G3M0283
2. DIFFERENTIAL GEAR OIL LEVEL
1) Ensure the vehicle is in safe condition.
NOTE:
Do not check the oil level nor add oil to the case with the
front end of the vehicle jacked-up; this will result in an
incorrect reading of the oil level.
2) Check whether the oil level is between the upper (F)
and lower (L) marks. If it is below the lower limit mark, add
oil until the level reaches the upper mark.
G3M0854
3. OIL LEAKAGE
It is difficult to accurately determine the precise position of
a oil leak, since the surrounding area also becomes wet
with oil. The places where oil seals and gaskets are used
are as follows:
Jointing portion of the case
Transmission case and oil pump housing jointing portion
Torque converter clutch case and oil pump housing joint-
ing portion
Transmission case and transmission cover jointing por-
tion (FWD)
Transmission case and extension case jointing portion
(AWD)
G3M0855
Torque converter clutch case
Engine crankshaft oil seal
Torque converter clutch impeller sleeve oil seal
ATF cooler pipe connector
Torque converter clutch
Torque converter clutch case
Axle shaft oil seal
O-ring on the outside diameter of axle shaft oil seal
holder
O-ring on the differential oil gauge
Differential oil drain plug
Speedometer cable mounting portion
Location of steel balls
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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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3-2SERVICE PROCEDURE
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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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3-2SERVICE PROCEDURE
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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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3-2SERVICE PROCEDURE
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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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3-2SERVICE PROCEDURE
2. On-Car Service