SUBARU TRIBECA 2009 1.G Service Workshop Manual

CO(H6DO)-12
Engine Coolant
COOLING
2. PROCEDURE TO ADJUST THE CON-
CENTRATION OF THE COOLANT
To adjust the concentration of coolant according to
temperature, find the proper fluid concentration in
the above diagram and replace the necessary
amount of coolant with an undiluted solution of
SUBARU Genuine Coolant (concentration 50%).
The amount of engine coolant that should be re-
placed can be determined using the diagram.
[Example]
Assume that the engine coolant concentration must
be increased from 25% to 40%. Find point A, where
the 25% line of engine coolant concentration inter-
sects with the 40% curve of the necessary engine
coolant concentration, and read the scale on the
vertical axis of the graph at height A. The quantity
of coolant to be drained is 2.12;(2.2 US qt, 1.8 Imp
qt). Drain 2.1 2(2.2 US qt, 1.8 Imp qt) of coolant
from the cooling system and add 2.1 2(2.2 US qt,
1.8 Imp qt) of the undiluted solution of SUBARU
coolant.
If a coolant concentration of 50% is needed, drain
all the coolant and refill with the undiluted solution
only.
CO-00012
100
1
2
3
(1.1, 0.9)
(2.1, 1.8)
(3.2, 2.6)
10%15%
25%20%
30%
35%40%
45%A
20 30 40 50
Concentration of coolant in vehicieand quantity to be drained
Quantity of coolant to bedrained (US qt, Imp qt)
Necessary Concentrationof coolant
Concentration of coolant inthe vehicie cooling system %

CO(H6DO)-13
Water Pump
COOLING
4. Water Pump
A: REMOVAL
1) Remove the radiator. <Ref. to CO(H6DO)-15,
REMOVAL, Radiator.>
2) Remove the V-belts.
<Ref. to ME(H6DO)-31, REMOVAL, V-belt.>
3) Remove the front chain cover.
<Ref. to ME(H6DO)-42, REMOVAL, Front Chain
Cover.>
4) Remove the timing chain assembly.
<Ref. to ME(H6DO)-44, REMOVAL, Timing Chain
Assembly.>
5) Remove the water pump.
NOTE:
When the water pump cannot be removed easily,
screw-in the bolt (A) to the threaded end to remove
water pump.
B: INSTALLATION
1) Install the water pump to rear chain cover.
NOTE:
Apply engine coolant to O-ring.
Tightening torque
6.4 N·m (0.65 kgf-m, 4.7 ft-lb)
NOTE:
•Use new O-rings.
•Apply engine coolant to O-ring to install water
pump easier.
2) Install the timing chain assembly.
<Ref. to ME(H6DO)-45, INSTALLATION, Timing
Chain Assembly.>
3) Install the front chain cover.
<Ref. to ME(H6DO)-42, INSTALLATION, Front
Chain Cover.>
4) Install the V-belts.
<Ref. to ME(H6DO)-31, INSTALLATION, V-belt.>
5) Install the radiator. <Ref. to CO(H6DO)-17, IN-
STALLATION, Radiator.>
6) Fill engine coolant. <Ref. to CO(H6DO)-10,
FILLING OF ENGINE COOLANT, REPLACE-
MENT, Engine Coolant.>
C: INSPECTION
1) Check the water pump bearing for smooth rota-
tion.
2) Check the water pump sprocket for abnormali-
ties.
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(A)
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CO(H6DO)-14
Thermostat
COOLING
5. Thermostat
A: REMOVAL
1) Set the vehicle on a lift.
2) Lift-up the vehicle.
3) Remove the under cover.
4) Drain engine coolant completely.
<Ref. to CO(H6DO)-10, DRAINING OF ENGINE
COOLANT, REPLACEMENT, Engine Coolant.>
5) Disconnect the radiator hose from thermostat
cover.
6) Remove the thermostat cover, and then remove
the thermostat.
B: INSTALLATION
1) Install a gasket to thermostat.
NOTE:
Use a new gasket.
2) Install the thermostat and thermostat cover.
NOTE:
The thermostat must be installed with the jiggle pin
facing to the up side.
Tightening torque:
6.4 N·m (0.65 kgf-m, 4.7 ft-lb)
3) Connect the radiator hose to thermostat cover.
4) Install the under cover.
5) Lower the vehicle.
6) Fill engine coolant. <Ref. to CO(H6DO)-10,
FILLING OF ENGINE COOLANT, REPLACE-
MENT, Engine Coolant.>
C: INSPECTION
Replace the thermostat if the valve does not close
completely at an ambient temperature or if the fol-
lowing test shows unsatisfactory results.
•Inspection method
Immerse the thermostat and a thermometer in wa-
ter. Raise water temperature gradually, and mea-
sure the temperature and valve lift when the valve
begins to open and when the valve is fully opened.
During the test, agitate the water for even temper-
ature distribution. The measured value should
meet the specification.
Starting temperature to open:
80 — 84°C (176 — 183°F)
Fully opens:
95°C (203°F)
NOTE:
•Leave the thermostat in the boiling water for
more than five minutes before measuring the
valve lift.
•Hold the thermostat with a wire or the like to
avoid contacting with container bottom.
Valve lift:
9.0 mm (0.354 in) or more
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(A) Thermometer
(B) Thermostat
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(A)
(B)

CO(H6DO)-15
Radiator
COOLING
6. Radiator
A: REMOVAL
WARNING:
The radiator is pressurized. Wait until engine
cools down before working on the radiator.
1) Set the vehicle on a lift.
2) Remove the collector cover.
3) Disconnect the ground cable from battery.
4) Lift-up the vehicle.
5) Remove the under cover.
6) Drain engine coolant completely.
<Ref. to CO(H6DO)-10, DRAINING OF ENGINE
COOLANT, REPLACEMENT, Engine Coolant.>
7) Disconnect the radiator hose from radiator.
8) Remove the bolts on the underside of the radia-
tor stay.
9) Lower the vehicle.
10) Remove the air intake duct. <Ref. to IN(H6DO)-
7, REMOVAL, Air Intake Duct.>
11) Remove the front upper cover.
12) Remove the radiator upper brackets.
13) Remove the radiator stay.
(1) Remove the latch.
(2) Remove the radiator hose bracket.
(3) Remove the clip holding the harness.
(4) Remove the bolts on the left side of the radi-
ator stay.
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CO(H6DO)-16
Radiator
COOLING
(5) Remove the bolts on the right side of the ra-
diator stay.
14) Disconnect the connector from radiator fan
control unit.
15) Remove the reservoir tank.
16) Disconnect the radiator hose from radiator.
17) Disconnect the ATF cooler hose from the radi-
ator.
NOTE:
Plug the ATF pipe to prevent ATF leaks.
18) Remove the front bumper. <Ref. to EI-21, RE-
MOVAL, Front Bumper.>
19) Remove the bolts which hold the radiator and
condenser.
20) Remove the clip holding the ambient tempera-
ture sensor harness.
21) Lift the radiator up and away from vehicle.
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CO(H6DO)-17
Radiator
COOLING
B: INSTALLATION
1) Install the radiator lower cushion to the vehicle.
2) Install the radiator to vehicle.
NOTE:
Insert the pins on the lower side of radiator into the
radiator lower cushions on the vehicle side.
3) Hold the harness of the ambient temperature
sensor with a clip.
4) Hold the radiator and condenser with bolts.
Tightening torque:
7.5 N·m (0.76 kgf-m, 5.5 ft-lb)
5) Install the front bumper. <Ref. to EI-22, INSTAL-
LATION, Front Bumper.>
6) Connect the ATF cooler hoses.
7) Connect the radiator hose.
8) Install the reservoir tank.
9) Connect the connector of the radiator fan control
unit.
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CO(H6DO)-18
Radiator
COOLING
10) Install the radiator stay.
(1) Install the latch.
Tightening torque:
33 N·m (3.4 kgf-m, 25 ft-lb)
(2) Install the radiator hose bracket.
(3) Hold the harness to the radiator stay with a
clip.
(4) Tighten the bolts on the left side of the radi-
ator stay.
Tightening torque:
18 N·m (1.8 kgf-m, 13.3 ft-lb)
(5) Tighten the bolts on the right side of the ra-
diator stay.
Tightening torque:
18 N·m (1.8 kgf-m, 13.3 ft-lb)
11) Install the radiator upper brackets.
Tightening torque:
12 N·m (1.2 kgf-m, 8.9 ft-lb)
12) Lift-up the vehicle.
13) Connect the radiator hose.
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CO(H6DO)-19
Radiator
COOLING
14) Tighten the bolts on the lower side of the radia-
tor stay.
Tightening torque:
18 N·m (1.8 kgf-m, 13.3 ft-lb)
15) Lower the vehicle.
16) Connect the ground cable to battery.
17) Fill engine coolant.
<Ref. to CO(H6DO)-10, FILLING OF ENGINE
COOLANT, REPLACEMENT, Engine Coolant.>
18) Check the ATF level and replenish it if neces-
sary.
<Ref. to 5AT-26, INSPECTION, Automatic Trans-
mission Fluid.>
19) Lift-up the vehicle.
20) Install the under cover.
21) Lower the vehicle.
22) Install the front upper cover.
23) Install the air intake duct. <Ref. to IN(H6DO)-7,
INSTALLATION, Air Intake Duct.>
24) Install the collector cover.
C: INSPECTION
1) Remove the radiator cap, fill the radiator with en-
gine coolant, and then install the tester to the instal-
lation position of cap.
2) Apply a pressure of 157 kPa (1.6 kg/cm2, 23 psi)
to the radiator and check the following points:
•Leakage from the radiator or its vicinity
•Leakage from the hose or its connections
CAUTION:
•Engine should be turned off.
•Wipe engine coolant from check points in ad-
vance.
•Be careful of the spurt of engine coolant
when removing the tester.
•Be careful not to deform the filler neck of ra-
diator when installing and removing the tester.
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CO(H6DO)-20
Radiator Cap
COOLING
7. Radiator Cap
A: INSPECTION
1) Attach the radiator cap to tester.
2) Increase pressure until the tester gauge pointer
stops. Radiator cap is functioning properly if it holds
the service limit pressure for five - six seconds.
Specified pressure:
93 — 123 kPa (0.95 — 1.25 kg/cm2, 14 — 18
psi)
Service limit pressure:
83 kPa (0.85 kg/cm2, 12 psi)
CAUTION:
Be sure to remove foreign matter and rust from
the cap in advance. Otherwise, results of pres-
sure test will be incorrect.
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CO(H6DO)-21
Radiator Main Fan and Fan Motor
COOLING
8. Radiator Main Fan and Fan
Motor
A: REMOVAL
1) Set the vehicle on a lift.
2) Remove the collector cover.
3) Disconnect the ground cable from battery.
4) Lift-up the vehicle.
5) Remove the under cover.
6) Remove the bolts on the underside of the radia-
tor stay.
7) Remove the bolts on the underside of the radia-
tor fan shroud.
8) Lower the vehicle.
9) Remove the air intake duct. <Ref. to IN(H6DO)-
7, REMOVAL, Air Intake Duct.>
10) Remove the front upper cover.
11) Remove the radiator upper brackets.
12) Remove the radiator stay.
(1) Remove the latch.
(2) Remove the radiator hose bracket.
(3) Remove the clip holding the harness.
(4) Remove the bolts on the left side of the radi-
ator stay.
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