2009 SUBARU TRIBECA automatic transmission

5AT-30
Stall Test
AUTOMATIC TRANSMISSION
5. Stall Test
A: INSPECTION
NOTE:
The stall test is extremely important in diagnosing
the condition of an automatic transmission and en-
gine. It should be conducted to measure the engine
stall speeds in “R” and “2nd of manual mode”.
Purposes of the stall test:
•Operational check of the automatic transmission
clutch
•Operational check of the torque converter clutch
•Engine performance check
1) Check that the throttle valve fully opens.
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) Raise the ATF temperature to 70 to 80°C (158 to
176°F) by driving a distance of 5 to 10 km (3 to 6
miles). Confirm the ATF temperature on Subaru
Select Monitor. RENT DATA, OPERATION, Subaru Select Moni-
tor.>
7) Place the wheel chocks at the front and rear of
all wheels and apply the parking brake.
8) Move the select lever to ensure it operates prop-
erly, and then set to the “2nd gear of manual
mode”.
9) While stepping hard on the brake pedal, gradu-
ally step on the accelerator pedal.
10) When the engine speed is stabilized, quickly
record the engine speed and release accelerator
pedal.
11) Shift the select lever to “N” range, and cool
down the engine by idling it for more than one
minute.
12) Perform the procedure for “R” range in the
same way as “2nd on manual mode”.
NOTE:
•Do not continue the stall test for MORE THAN
FIVE SECONDS at a time (from fully closed throttle
to fully open throttle until stall speed reading). Do-
ing so will make the engine oil and ATF deteriorate
and the clutch and brake to be adversely affected.
•After performing the stall test, be sure to cool
down the engine for at least one minute with the se-
lect lever set in “P” or “N” range, and at an idle
speed of 1,200 rpm or less.
•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):
2,300 — 2,800 rpm
AT-03297
Stall speed (at sea level) Range Possible faulty part
Below specified value R•Engine
•One-way clutch of torque converter clutch
Over specified value
2nd gear of manual
mode
•Line pressure too low
•Forward brake
•Forward brake one-way clutch
•Direct clutch
•3rd one-way clutch
R•Line pressure too low
•Reverse clutch

5AT-31
Time Lag Test
AUTOMATIC TRANSMISSION
6. Time Lag Test
A: INSPECTION
NOTE:
When the select lever is shifted while the engine is
idling, there will be a certain time elapse or lag be-
fore shock is felt. Using this, check the condition of
forward brake, reverse brake, 1st one-way clutch,
forward one-way clutch and 3rd one-way clutch.
•Perform the test at normal operation fluid tem-
perature of 70 — 80°C (158 — 176°F).
•Be sure to allow a one minute interval between
tests.
•Make three measurements and take the average
value.
1) Fully apply the parking brake.
2) Start the engine.
Check the idle speed (A/C OFF).
3) Shift the select lever from “N” to “D” range. Using
a stop watch, measure the time-lag from shifting
the lever until the shock is felt.
Time-lag
Specification: 1.2 sec. or less
If “N” → “D” time-lag is longer than specification:
•Line pressure too low
•Forward brake worn
•One–way clutch not operating properly
4) In the same manner, measure the time lag of “N”
→ “R”.
Time-lag
Specification: 1.5 sec. or less
If “N” → “R” time lag is longer than specification:
•Line pressure too low
•Reverse brake worn

5AT-32
Line Pressure Test
AUTOMATIC TRANSMISSION
7. Line Pressure Test
A: MEASUREMENT
NOTE:
If the clutch or brake shows a sign of slippage, or
shifting interval is not correct, check the line pres-
sure.
•Excessive shock during up-shift may be due to
the line pressure being too high.
•Slippage or inability to operate the vehicle may,
in most cases, be due to loss of oil pressure for the
operation of clutch, brake or control valve.
1) Set the vehicle on a lift.
2) Remove the under cover.
3) Remove the test plug and install the ST.
ST 498897200 OIL PRESSURE ADAPTER
4) Set the ST1 and ST2.
ST1 498897200 OIL PRESSURE ADAPTER
ST2 498575400 OIL PRESSURE GAUGE
5) Lower the vehicle, and pull ST1 and ST2 into the
vehicle.
ST1 498897200 OIL PRESSURE ADAPTER
ST2 498575400 OIL PRESSURE GAUGE
6) Connect the Subaru Select Monitor to the data
link connector and read the current data. 5AT(diag)-15, READ CURRENT DATA, OPERA-
TION, Subaru Select Monitor.>
7) Perform the line pressure test.
NOTE:
•Do not perform the line pressure test for more
than 5 seconds at a time. Doing so will make the
engine oil and ATF deteriorate and the clutch and
brake to be adversely affected.
•After performing the line pressure test, be sure to
cool down the engine for at least one minute with
the select lever set in “P” or “N” range and with the
idle speed at 1,200 rpm or less.
•Adjust the throttle valve angle in order to match
the “P/L Solenoid Pressure” displayed on the Sub-
aru Select Monitor.
AT-01752
Range of the
selector lever
Throttle opening
angle
AT F t e m p e r a t u r e
condition
“P/L Solenoid Pressure” dis-
played on the Subaru Select
Monitor
kPa
Standard line pressure
kPa (kg/cm2, psi)
D
Full closed
45 — 55°C
(104 — 131°F)
490385 — 555
(3.93 — 5.66, 55.8 — 80.5)
Full open 1,3701,235 — 1,475
(12.59 — 15.04, 179.1 — 213.9)
RFull closed 1,3701,530 — 1,925
(15.60 — 19.6, 221.9 — 279.2)

5AT-33
Transfer Clutch Pressure Test
AUTOMATIC TRANSMISSION
8. Transfer Clutch Pressure
Test
A: INSPECTION
1) Lift-up the vehicle.
2) Remove the bolts holding the heat shield cover,
and move the heat shield cover to the rear.
3) Remove the test plug and install the ST.
CAUTION:
Be careful not to cut yourself on the heat shield
cover when removing the test plugs and setting
the ST.
ST 498897700 OIL PRESSURE ADAPTER
ST 498897800 ADAPTER SET
4) Set the ST.
ST 498575400 OIL PRESSURE GAUGE
5) Lower the vehicle, and pull ST3 into the vehicle.
ST1 498897700 OIL PRESSURE ADAPTER
ST2 498897800 ADAPTER SET
ST3 498575400 OIL PRESSURE GAUGE
6) Connect the Subaru Select Monitor to the data
link connector and read the current data. 5AT(diag)-15, READ CURRENT DATA, OPERA-
TION, Subaru Select Monitor.>
7) Perform the transfer clutch pressure test.
NOTE:
•Do not perform the transfer clutch pressure test
for more than 5 seconds at a time. Doing so will
make the engine oil and ATF deteriorate and the
clutch and brake to be adversely affected.
•After performing the transfer clutch pressure test,
be sure to cool down the engine for at least one
minute with the select lever set in the “P” or “N”
range, and at an idle speed of 1,200 rpm or less.
•Adjust the throttle valve angle in order to obtain
the “T/F Solenoid Pressure” displayed on the Sub-
aru Select Monitor.
8) Remove the ST and install the test plug.
9) Install the heat shield cover.
AT-03275
Range of the
selector lever
Throttle opening
angle
AT F t e m p e r a t u r e
condition
“T/F Solenoid Pressure” displayed on
the Subaru Select Monitor
kPa
Standard line pressure
kPa (kg/cm2, psi)
D
Full open
45 — 55°C
(104 — 131°F)
900800 — 915
(8.16 — 9.33, 116.0 — 132.7)
Par tial throttle 500400 — 535
(4.08 — 5.46, 58.0 — 77.6)
NFull closed 00 — 50
(0 — 0.51, 0 — 7.3)

5AT-34
Automatic Transmission Assembly
AUTOMATIC TRANSMISSION
9. Automatic Transmission As-
sembly
A: REMOVAL
1) Set the vehicle on a lift.
2) Open the front hood and support with the hood
stay.
3) Disconnect the ground cable from battery.
4) Remove the collector cover.
5) Remove the air intake chamber. IN(H6DO)-6, REMOVAL, Air Intake Chamber.>
6) Remove the air breather hose. REMOVAL, Air Breather Hose.>
7) Remove the starter. MOVAL, Starter.>
8) Disconnect the front oxygen (A/F) sensor and
transmission harness connector.
9) Disconnect the engine harness connectors, and
then remove the engine hanger rear.
10) Remove the vacuum pipe & hose assembly
and the brake vacuum pump. MOVAL, Brake Vacuum Pump.>
11) Remove the throttle body securing bolts to and
slide the throttle body over.
12) Separate the torque converter from drive plate.
(1) Remove the service hole plug.
(2) Remove the bolts which hold torque con-
verter to drive plate.
(3) Remove the four bolts by rotating the clamp
pulley a little at a time.
(4) Make sure the torque converter moves free-
ly by rotating with finger through the starter in-
stallation hole.
CAUTION:
Be careful not to drop bolts into converter
housing.
13) Install the ST to the converter case.
ST 498277200 STOPPER SET
14) Remove the pitching stopper.
(A) Front oxygen (A/F) sensor
(B) Transmission harness connectors
(A) Engine harness connectors
(B) Engine hanger rear
(A)
(B)
AT-03239
(B)
(A)
(A)
AT-02023
AT-01366
AT-00103
ST
AT-03240

5AT-35
Automatic Transmission Assembly
AUTOMATIC TRANSMISSION
15) Remove the pitching stopper bracket.
16) Set the ST.
ST1 41099AA010 ENGINE SUPPORT BRACK-
ET
ST2 41099AA020 ENGINE SUPPORT
17) Remove the transmission mounting bolt (upper
side).
18) Lift-up the vehicle.
19) Remove the under cover.
20) Remove the front exhaust pipe, rear exhaust
pipe and muffler. AL, Front Exhaust Pipe.> REMOVAL, Rear Exhaust Pipe.> EX(H6DO)-8, REMOVAL, Muffler.>
21) Remove the heat shield cover.
22) Remove the ATF drain plug to drain ATF.
23) Remove the oil charge pipe.
24) Disconnect the connector from turbine speed
sensor 1.
AT-03241
AT-03242
ST2
ST1
AT-03237
(A) Oil pan
(B) Drain plug
AT-03243
(A)
AT-01361
(B)
AT-01371
AT-01642

5AT-36
Automatic Transmission Assembly
AUTOMATIC TRANSMISSION
25) Remove the turbine speed sensor 1 from the
transmission body.
CAUTION:
Failure to follow this procedure may cause the
interference between vehicle body and sensor
while removing/installing transmission, and re-
sulting in damage.
26) To prevent contamination by foreign objects,
cover the attachment hole for turbine speed sensor
1 with vinyl tape.
27) Remove the propeller shaft. REMOVAL, Propeller Shaft.>
28) Remove the shift select cable. REMOVAL, Select Cable.>
29) Disconnect the hose from the ATF inlet and
outlet pipes.
30) Remove the front crossmember support plate.
Support Plate.>
31) Remove the two clutch housing cover securing
bolts.
32) Remove the front stabilizer clamp. 14, REMOVAL, Front Stabilizer.>
33) Remove the bolts which secure front ball joint
to the housing. Ball Joint.>
34) Pull out the drive shaft from transmission.
35) Set the transmission jack under the transmis-
sion.
36) Remove the rear crossmember.
AT-03363
AT-03246
AT-01373
AT-01374
AT-01376
AT-01377

5AT-37
Automatic Transmission Assembly
AUTOMATIC TRANSMISSION
37) Remove the transmission mounting bolts and
nuts (lower side).
38) Remove the transmission.
NOTE:
•Turn the engine support assembly from the vehi-
cle under body to the left (to shorten the engine
support length), and lower the rear of the engine for
easy disassembly.
•Be careful not to allow breather pipe and etc. to
touch the vehicle body when detaching the auto-
matic transmission assembly by pulling it back-
ward.
B: INSTALLATION
1) Install the ST to converter case.
ST 498277200 STOPPER SET
2) Install the transmission onto the engine.
3) Install the engine mounting bolts and nuts (lower
side).
Tightening torque:
50 N·m (5.1 kgf-m, 36.9 ft-lb)
4) Install the transmission rear crossmember.
Tightening torque:
75 N·m (7.6 kgf-m, 55.3 ft-lb)
5) Remove the transmission jack.
6) Lower the vehicle.
7) Install the engine mounting bolt (upper side).
Tightening torque:
50 N·m (5.1 kgf-m, 36.9 ft-lb)
8) Remove the ST from converter case.
ST 498277200 STOPPER SET
9) Install the torque converter to drive plate.
(1) Install the bolts which hold torque converter
to drive plate.
(2) Install all four bolts by rotating the crank pul-
ley a little at a time.
(3) Install the service hole.
Tightening torque:
25 N·m (2.5 kgf-m, 18 ft-lb)
10) Install the starter. STALLATION, Starter.>
AT-03238
AT-00103
ST
AT-03238
AT-01377
AT-03237