1999 SUBARU LEGACY Engine cooling

Automatic
transmis-
sionTransmis-
sionSelector positionP (Park)Transmission in
neutral, output mem-
ber immovable, and
engine start possible
R (Reverse)Transmission in
reverse for backing
N (Neutral)Transmission in
neutral, and engine
start possible
D (Drive)Automatic gear
change
1st
¬
®2nd¬
®3rd¬
®4th
3 (3rd)Automatic gear
change
1st
¬
®2nd¬
®3rd
¬4th
2 (2nd)2nd gear locked
(Deceleration pos-
sible 4th®3rd®
2nd)
1 (1st)1st gear locked
(Deceleration pos-
sible 4th®3rd®
2nd®1st)
Control method Hydraulic remote control
Oil pumpType Trochoid constant-displacement pump
Driving method Driven by engine
Number of teethInner rotor 9
Outer rotor 10
Hydraulic
controlTypeElectronic/hydraulic control [Four forward speed changes by electri-
cal signals of vehicle speed and accelerator (throttle) opening]
Fluid Dexron II or Dexron III type Automatic transmission fluid
Fluid capacity2200 cc 8.4 Ð 8.7(8.9 Ð 9.2 US qt, 7.4 Ð 7.7 Imp qt)
2500 cc 9.3 Ð 9.6(9.8 Ð 10.1 US qt, 8.2 Ð 8.4 Imp qt)
Lubrica-
tionLubrication system Forced feed lubrication with oil pump
Oil Automatic transmission fluid (above mentioned.)
Cooling Cooling system Liquid-cooled cooler incorporated in radiator
HarnessInhibitor switch 12 poles
Transmission harness 17 poles
TransferTransfer clutch Hydraulic multi-plate clutch
Plate number of transfer clutchDrive plate & driven
plate2200 cc 4
2500 cc 5
Control method Electronic, hydraulic type
LubricantThe same Automatic Transmission
Fluid used in automatic transmission.
1st reduction gear ratio 1.000 (53/53)
3
[S1A0]3-2SPECIFICATIONS AND SERVICE DATA
1. Automatic Transmission and Differential

F: CLEARANCE TABLE
CAUTION:
This table lists various clearances that must be
correctly adjusted to ensure normal vehicle
driving without interfering noise, or any other
faults.
LocationMinimum
allowance
mm (in)LocationMinimum
allowance
mm (in)
(1) Crossmember Ð Pipe 5 (0.20) (6) Exhaust pipe Ð Pipe 15 (0.59)
(2) DOJ Ð Shaft or joint 14 (0.55) (7) Exhaust pipe Ð Gearbox bolt 15 (0.59)
(3) DOJ Ð Valve housing 11 (0.43) (8) Side frame Ð Hose A and B 15 (0.59)
(4) Pipe Ð Pipe 2 (0.08) (9) Cruise control pump Ð Hose A and B 15 (0.59)
(5) Stabilizer Ð Pipe 5 (0.20) (10) Pipe portion of hose A Ð Pipe portion of
hose B1.5 (0.059)
(11)AT cooling hose Ð Joint 20 (0.79)
B4M0565B
G: BREAKAGE OF HOSES
CAUTION:
Although surface layer materials of rubber
hoses have excellent weathering resistance,
heat resistance and resistance for low tem-
perature brittleness, they are likely to be dam-
aged chemically by brake fluid, battery
electrolyte, engine oil and automatic transmis-
sion fluid and their service lives are to be very
shortened. It is very important to keep thehoses free from before mentioned fluids and to
wipe out immediately when the hoses are
adhered with the fluids.
Since resistances for heat or low temperature
brittleness are gradually declining according to
time accumulation of hot or cold conditions for
the hoses and their service lives are shortening
accordingly, it is necessary to perform careful
inspection frequently when the vehicle is used
in hot weather areas, cold weather area and/or
a driving condition in which many steering
operations are required in short time. Particu-
76
4-3[K1F0]DIAGNOSTICS
1. Power Steering

Condition Probable cause Corrective action
FAULTY CONDENSER
G4M0680
No cooling action;
Engine may overheat.
Suction line is very hot.Condenser is often
found not functioning
well.ICheck condenser
cooling fan.
ICheck condenser for
dirt accumulation.
ICheck engine cooling
system for overheat.
ICheck for refrigerant
overcharge.
If pressure remains
high in spite of all
above actions taken,
remove and inspect
the condenser for
possible oil clogging.
HIGH-PRESSURE LINE BLOCKED
G4M0681
Insufficient cooling;
Frosted high-pressure
liquid line.Drier is clogged, or
restriction in high- pres-
sure line.(1) Discharge system.
(2) Remove receiver
drier or strainer and
replace it.
(3) Evacuate and
charge system.
FAULTY COMPRESSOR
G4M0682
Insufficient cooling Internal problem is in
compressor, or dam-
aged gasket and valve.(1) Discharge system.
(2) Remove and check
compressor.
(3) Repair or replace
compressor.
(4) Check oil level.
(5) Replace receiver
drier.
(6) Evacuate and
charge system.
37
[K200]4-7DIAGNOSTICS
2. Performance Test Diagnosis