2004 SUBARU FORESTER Service Repair Manual

technical specifications oil type winter tyres bonnet seat memory key

Page 2345 of 2870

SUBARU FORESTER 2004 Service Repair Manual 4AT-33
AUTOMATIC TRANSMISSION
Stall Test
5. Stall Test
A: INSPECTION
NOTE:
The stall test is of extreme importance in diagnos-
ing the condition of the automatic transmission and
the engine. It shoul

4AT-33
AUTOMATIC TRANSMISSION
Stall Test
5. Stall Test
A: INSPECTION
NOTE:
The stall test is of extreme importance in diagnos-
ing the condition of the automatic transmission and
the engine. It should be conducted to measure the
engine stall speeds in “R” and “2” ranges (when
HOLD switch is ON).
Purposes of the stall test:
To check the operation of the automatic trans-
mission clutch.
To check the operation of the torque converter
clutch.
To check engine performance.
1) Check that the throttle valve opens fully.
2) Check that the engine oil level is correct.
3) Check that the coolant level is correct.
4) Check that the ATF level is correct.
5) Check that the differential gear oil level is cor-
rect.
6) Increase ATF temperature to 70 — 80°C (158 —
176°F) by idling the engine for approximately 30
minutes (with select lever set to “N” or “P”).
7) Place the wheel chocks at the front and rear of
all wheels and engage the parking brake.
8) Shift the manual linkage to ensure it operates
properly, then shift the select lever to the “2” range
and turn the HOLD switch to ON.
9) While forcibly depressing the foot brake pedal,
gradually depress the accelerator pedal until the
engine operates at full throttle.
10) When the engine speed is stabilized, record
that speed quickly and release the accelerator ped-
al.
11) Shift the select lever to “N” range, and cool
down the engine by idling it for more than one
minute.12) If the stall speed in “2” range (with HOLD switch
ON) is higher than specifications, low clutch slip-
ping and “2-4 brake slipping” may occur. To identify
it, conduct the same test as above in “R” range.
13) Perform the stall tests with the select lever in
the “D” range.
NOTE:
Do not continue the stall test for more than five
seconds at a time (from closed throttle, fully open
throttle to stall speed reading). Failure to follow this
instruction causes the engine oil and ATF to deteri-
orate and the clutch and brake to be adversely af-
fected.
Be sure to cool down the engine for at least one
minute after each stall test with the select lever set
in the “P” or “N” range and with the idle speed lower
than 1,200 rpm.
If the stall speed is higher than the specified
range, attempt to finish the stall test in as short a
time as possible, in order to prevent the automatic
transmission from sustaining damage.
Stall speed (at sea level):
2.0 L NON-TURBO MODEL
2,000 — 2,500 rpm
2.0 L TURBO MODEL
2,600 — 3,300 rpm
2.5 L NON-TURBO MODEL
2,100 — 2,600 rpm
2.5 L TURBO MODEL
2,700 — 3,200 rpm
(A) Brake pedal
(B) Accelerator pedal
(A) (B)
P
R
N
D
3
2
1
AT-00449

Page 2346 of 2870

SUBARU FORESTER 2004 Service Repair Manual 4AT-34
AUTOMATIC TRANSMISSION
Stall Test
Stall speed (at sea level) Range Cause
Less than standard2 (Hold switch ON),
R Throttle valve not fully open
Erroneous engine operation
Torque converter

Page 2347 of 2870

SUBARU FORESTER 2004 Service Repair Manual 4AT-35
AUTOMATIC TRANSMISSION
Time Lag Test
6. Time Lag Test
A: INSPECTION
NOTE:
If the select lever is shifted while the engine is
idling, there will be a certain time elapse or lag be-
fore the sho

Page 2348 of 2870

SUBARU FORESTER 2004 Service Repair Manual 4AT-36
AUTOMATIC TRANSMISSION
Line Pressure Test
7. Line Pressure Test
A: MEASUREMENT
NOTE:
If the clutch or the brake shows a sign of slippage or
shifting sensation is not correct, the line pressure

4AT-36
AUTOMATIC TRANSMISSION
Line Pressure Test
7. Line Pressure Test
A: MEASUREMENT
NOTE:
If the clutch or the brake shows a sign of slippage or
shifting sensation is not correct, the line pressure
should be checked.
Excessive shocks during upshifting or shifting
takes place at a higher point than under normal cir-
cumstances, may be due to the line pressure being
too high.
Slippage or inability to operate the vehicle may,
in most cases, be due to insufficient oil pressure for
the operation of the clutch, brake or control valve.
1) Line pressure measurement (under no load):
(1) Before measuring line pressure, jack-up all
wheels.
(2) Maintain the temperature of ATF at approx.
70 — 80°C (158 — 176°F) during measurement.
(ATF will reach the above temperature after
idling the engine for approx. 30 minutes with the
select lever in “N” or “P”.)
2) Line pressure measurement (under heavy load):
(1) Before measuring line pressure, apply both
foot and parking brakes with all wheels chocked
(Same as for “stall” test conditions).
(2) Measure the line pressure when the select
lever is in “D”, “2” (HOLD switch ON) with engine
under stall conditions.
(3) Measure the line pressure within 5 seconds
after shifting the select lever to each position. (If
the line pressure needs to be measured again,
allow the engine to idle and cool it down more
than 1 minute.)
(4) Maintain the ATF temperature at approx. 70
— 80°C (158 — 176°F) during measurement.
(ATF will reach the above temperature after
idling the engine for approx. 30 minutes with the
select lever in “N” or “P”.)3) Temporarily attach the ST to a suitable place in
the driver’s compartment, remove the blind plug lo-
cated in front of the toe board and pass the hose of
the ST to the engine compartment.
ST 498575400 OIL PRESSURE GAUGE
ASSY
4) Remove the test plug and install the ST instead.
ST 498897200 OIL PRESSURE GAUGE
ADAPTER
5) Connect ST1 with ST2.
ST1 498897200 OIL PRESSURE GAUGE
ADAPTER
ST2 498575400 OIL PRESSURE GAUGE
ASSY
(A) Pressure gauge hose
(B) Hole in toe board (blank cap hole)
(C) Brake pedal
(A) Test plug
AT-00019
(A)(B)
(C)
AT-00020(A)

Page 2349 of 2870

SUBARU FORESTER 2004 Service Repair Manual 4AT-37
AUTOMATIC TRANSMISSION
Line Pressure Test
6) Check for duty ratio changes by opening and
closing the throttle valve using the Subaru Select
Monitor.
NON-TURBO MODEL
TURBO MODEL
Standard lin

Page 2350 of 2870

SUBARU FORESTER 2004 Service Repair Manual 4AT-38
AUTOMATIC TRANSMISSION
Transfer Clutch Pressure Test
8. Transfer Clutch Pressure
Test
A: INSPECTION
Check the transfer clutch pressure in accordance
with the following steps in the same manne

Page 2351 of 2870

SUBARU FORESTER 2004 Service Repair Manual 4AT-39
AUTOMATIC TRANSMISSION
Automatic Transmission Assembly
9. Automatic Transmission As-
sembly
A: REMOVAL
1) Set the vehicle on a lift.
2) Fully open the front hood and support with the
hood stay.

Page 2352 of 2870

SUBARU FORESTER 2004 Service Repair Manual 4AT-40
AUTOMATIC TRANSMISSION
Automatic Transmission Assembly
13) Disconnect the hose from lower portion of ATF
cooler (with warmer function), and then secure the
ATF cooler to vehicle using string, e

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