TOYOTA AVENSIS 2005 Service Repair Manual

160MS±01
16±36
±
COOLING RADIATOR ASSY(1AZ±FSE)
AVENSIS REPAIR MANUAL (RM1018E)
RADIATOR ASSY(1AZ±FSE)
REPLACEMENT
1.DRAIN COOLANT (See page 16±31)
2.REMOVE RADIATOR SUPPORT OPENING COVER
3.REMOVE ENGINE ROOM COVER SIDE
4.REMOVE ENGINE UNDER COVER RH
5.DISCONNECT RADIATOR HOSE INLET
6.DISCONNECT RADIATOR HOSE OUTLET
7.REMOVE RADIATOR SUPPORT UPPER
(a)Disconnect the fan w/ motor wire harness, connector and the horn connect\
or.
(b)Remove 4 bolts, the nut and the radiator support.
8.REMOVE RADIATOR ASSY
(a)Remove 2 upper support, and radiator assembly
9.REMOVE RADIATOR SUPPORT LOWER
10.REMOVE FAN ASSY W/MOTOR
(a)Remove 6 bolts and fan w/motor.
11.INSTALL FAN ASSY W/MOTOR
12.INSTALL RADIATOR SUPPORT LOWER
13.INSTALL RADIATOR ASSY
14.INSTALL RADIATOR SUPPORT UPPER
(a)Install radiator support with 2 bolts. Torque: 19 N
m (194 kgf
cm,14 ft
lbf)
15.ADD COOLANT (See page 16±31)
16.INSPECT CHECK FOR ENGINE COOLANT LEAKS (See page 16±25)

160MQ±01
A56451
A77424
10
10

±
COOLING THERMOSTAT(1AZ±FSE)
16±35
AVENSIS REPAIR MANUAL (RM1018E)
THERMOSTAT(1AZ±FSE)
REPLACEMENT
1.DRAIN COOLANT (See page 16±31)
2.REMOVE RADIATOR SUPPORT OPENING COVER
3.REMOVE ENGINE ROOM COVER SIDE
4.REMOVE ENGINE UNDER COVER RH
5.REMOVE FAN AND GENERATOR V BELT (See page 14±185)
SST09249±63010
6.REMOVE GENERATOR ASSY (See page 19±20)
7.REMOVE WATER INLET
(a)Remove 2 nuts, and disconnect the water inlet from thecylinder block.
8.REMOVE THERMOSTAT 9.INSTALL THERMOSTAT
(a)Install a new gasket to the thermostat.
(b)Install the thermostat with the jiggle valve upward.
HINT:
The jiggle valve may be set within 10
on either side of the pre-
scribed position.
10.INSTALL WATER INLET
(a)Install the water inlet with 2 nuts. Torque: 9.0 N
m (92 kgf
cm,7 in.
lbf)
11.INSTALL GENERATOR ASSY (See page 19±20)
12.INSTALL FAN AND GENERATOR V BELT (See page 14±185) SST 09249±63010
13.ADD COOLANT (See page 16±31)
14.INSPECT CHECK FOR ENGINE COOLANT LEAKS(See page 16±25)

160MR±01
B12054
SST
B12052
B12053
Pry
PryPry
±
COOLING WATER PUMP ASSY(1AZ±FSE)
16±33
AVENSIS REPAIR MANUAL (RM1018E)
WATER PUMP ASSY(1AZ±FSE)
REPLACEMENT
1.DRAIN COOLANT (See page 16±31)
2. REMOVE RADIATOR SUPPORT OPENING COVER
3. REMOVE ENGINE ROOM COVER SIDE
4. REMOVE ENGINE UNDER COVER RH
5.REMOVE FAN AND GENERATOR V BELT (See page 14±185)
SST 09249±63010
6.REMOVE GENERATOR ASSY (See page 19±20)
7. REMOVE WATER PUMP PULLEY
(a) Using SST, remove 4 bolts and pump pulley.SST 09960±10010 (09962±01000, 09963±00700)
(b) Disconnect the crankshaft position sensor wire clamp from the water pump.
(c) Disconnect the crankshaft position sensor wire from the clamp on the water pump.
8. REMOVE WATER PUMP ASSY
(a) Remove 4 bolts, 2 nuts, wire clamp and water pump.
(b) Using a screwdriver, pry between the water pump and cyl- inder block, and remove the water pump.
NOTICE:
Be careful not to damage the contact surface of the water
pump and cylinder block.

A57664
Seal Width
2.2 to 2.5 mm0.5 to 1.0 mm
B12052
B12054
SST
16±34
±
COOLING WATER PUMP ASSY(1AZ±FSE)
AVENSIS REPAIR MANUAL (RM1018E)
9.INSTALL WATER PUMP ASSY
(a)Remove any old packing (FIPG) material from the contact surface.
(b)Apply seal packing to the water pump as shown in the il- lustration.
Seal packing: Part No. 08826 ± 00100 or equivalent

Install a nozzle that has been cut to a 2.2 to 2.5 mm
(0.09 to 0.10 in.) opening.

Parts must be assembled within 5 minutes of ap-
plication. Otherwise the material must be removed
and reapplied.

Immediately remove nozzle from the tube and rein-
stall cap.
(c)Install the water pump and wire clamp with 4 bolts and 2 nuts.
Torque: 9.0 N
m (90 kgf
cm, 80 in.
lbf)
(d)Install the crankshaft position sensor wire harness clamp to the water pump.
(e)Install the crankshaft position sensor wire to the wire clamp on the water pump.
10.INSTALL WATER PUMP PULLEY
(a)Using SST, install the pump pulley with 4 bolts. SST09960±10010 (09962±01000, 09963±00700)
Torque: 26 N
m (265 kgf
cm, 19 ft
lbf)
11.INSTALL GENERATOR ASSY (See page 19±20)
12.INSTALL FAN AND GENERATOR V BELT (See page 14±185) SST 09249±63010
13.ADD COOLANT (See page 16±31)
14.INSPECT CHECK FOR ENGINE COOLANT LEAKS(See page 16±25)

160MU±01
A77341
Radiator Drain Cock Plug Radiator Cap
Cylinder Bllock Drain Cock Plug
Drain Pipe
± COOLINGENGINE COOLANT (1AZ±FSE)
16±31
AVENSIS REPAIR MANUAL (RM1018E)
ENGINE COOLANT (1AZ±FSE)
REPLACEMENT
1. DRAIN ENGINE COOLANT
CAUTION:
To avoid the danger of being burned, do not remove the ra-
diator cap while the engine and radiator are still hot, as fluid
and steam can be blown out under pressure.
(a) Remove the radiator cap.
(b) Loosen the radiator plug and drain the coolant.

16±32
±
COOLING ENGINE COOLANT(1AZ±FSE)
AVENSIS REPAIR MANUAL (RM1018E)
2.ADD ENGINE COOLANT
(a)Tighten the radiator drain plug, and pour coolant into radiator until it \
overflows. Capacity:
Transmission typeSteeringCoolant Capacity
[liters (US gts, lmp. gts)]
M/TLHD6.0 (6.3, 5.3)
M/TRHD6.1 (6.4, 5.4)
A/TLHD6.3 (6.7, 5.5)
A/TRHD6.4 (6.8, 5.6)
NOTICE:

Do not use an alcohol type coolant or plain water alone.

The coolant should be mixed with plain water (preferably demineralized wat\
er or distilled wa-
ter).
HINT:

Use of improper coolants may damage engine cooling system.

Use ºToyota Long Life Coolantº or equivalent and mix it with plain water ac\
cording to the manufactur-
er's directions.

Using of coolant with includes more than 50 % (freezing protection down to ±\
35 C (±31 F)) or 60 %
(freezing protection down to ±50 C (±58 F)) of ethylene±glycol is recommended but not more than
70 %.

Press the radiator inlet and outlet hose several times with hard.

If the coolant level gets lower, pour coolant.
(b)Reinstall the radiator cap.
(c)Pour engine coolant into the reservoir tank until it reaches full line.
(d)Warm up the engine until the thermostat valve begins to open.
HINT:
Press the radiator inlet and outlet hose several times with hard during \
the warming up.
(e)Stop the engine and wait until the coolant temp. Gets cold. Then remove the radiator cap to check the coolant level.
HINT:

If the level gets lower, perform the procedures above again.

If the level does not gets lower, adjust the reservoir tank coolant level.
3.CHECK FOR ENGINE COOLANT LEAKS(See page 16±25)

160N0±01
E34090
A30519
E34090
16±30
± COOLINGCOOLING FAN SYSTEM (1AZ±FSE)
AVENSIS REPAIR MANUAL (RM1018E)
INSPECTION
1. INSPECT COOLING FAN RELAY
(a) Continuity inspection.
(1) Using an ohmmeter, check for continuity between
each terminal.
Specified condition:
Terminal No.Specified condition
1 ± 2Continuity
No continuity
3 ± 5Continuity
(Apply battery boltage terminals 1 and 2)
2. INSPECT COOLING FAN RELAY NO.2
(a) Continuity inspection.
(1) Using an ohmmeter, check for continuity between
each terminal.
Specified condition:
Terminal No.Specified condition
1 ± 2
3 ± 4Continuity
No continuity
3 ± 5Continuity
(Apply battery boltage terminals 1 and 2)
3. INSPECT COOLING FAN RELAY NO.3
(a) Continuity inspection.
(1) Using an ohmmeter, check for continuity between
each terminal.
Specified condition:
Terminal No.Specified condition
1 ± 2Continuity
No continuity
3 ± 5Continuity
(Apply battery boltage terminals 1 and 2)

1600R±12
± COOLINGCOOLING FAN SYSTEM (1AZ±FSE)
16±29
AVENSIS REPAIR MANUAL (RM1018E)
COOLING FAN SYSTEM (1AZ±FSE)
ON±VEHICLE INSPECTION
HINT:
It is normal that the cooling fan sometime rotates when the ignition switch is turned from ACC to ON.
1. CHECK COOLING FAN OPERATION WITH LOW TEMPERATURE (Below 83
C (181
F))
(a) Turn the ignition switch ON.
(b) Check that the cooling fan stops.
If not, check the cooling fan relay and engine coolant temperature sensor, and check for disconnection of
connectors or wire break between the cooling fan relay and engine coolant temperature sensor.
(c) Disconnect the engine coolant temperature sensor connector.
(d) Check that the cooling fan rotates.
If not, check the fuses, cooling fan relay, ECM and cooling fan, and check for a short circuit between the
cooling fan relay and engine coolant temperature sensor.
(e) Reconnect the engine coolant temperature sensor connector.
2. CHECK COOLING FAN OPERATION WITH HIGH TEMPERATURE (Above 100
C (212
F))
(a) Start the engine, and raise coolant temperature to above 100
C (212
F).
HINT:
Coolant temperature is the detected value by the engine coolant temperature sensor on the water outlet.
(b) Check that the cooling fan rotates.
If not, replace the engine coolant temperature sensor.
3. INSPECT COOLING FAN
(a) Disconnect the cooling fan connector.
(b) Connect battery and ammeter to the cooling fan connector.
(c) Check that the cooling fan rotates smoothly, and check the reading on the ammeter.
Standard amperage:
5.2 to 8.2 A at 20
C (68
F) (M/T)
8.3 to 11.3 A at 20
C (68
F) (A/T)
(d) Reconnect the cooling fan connector.
4. INSPECT COOLING FAN No.2 (With Air Conditioner)
(a) Disconnect the cooling fan connector.
(b) Connect battery and ammeter to the cooling fan connector.
(c) Check that the cooling fan rotates smoothly, and check the reading on the ammeter.
Standard amperage:
5.2 to 8.2 A at 20
C (68
F) (M/T)
8.3 to 11.3 A at 20
C (68
F) (A/T)
(d) Reconnect the cooling fan connector.

160MZ±01
P35001
P00436
10mm
A51911
± COOLINGCOOLING SYSTEM (1AZ±FSE)
16±27
AVENSIS REPAIR MANUAL (RM1018E)
INSPECTION
1. INSPECT THERMOSTAT
HINT:
The thermostat is numbered with the valve opening tempera-
ture.
(a) Immerse the thermostat in water an gradually heat the
water.
(b) Check the valve opening temperature of the thermostat.
Valve opening temperature:
86 to 90C (187 to 198F)
If the valve opening temperature is not as specified, replace the
thermostat.
(c) Check the valve lift.
Valve lift: 10 mm (0.394 in.) or more at 100C (212F)
If the valve lift is not as specified, replace the thermostat.
(d) Check that the valve is fully closed when the thermostat
is at low temperatures (below 83C (181F)).
If not closed, replace the thermostat.
2. INSPECT RADIATOR CAP SUB±ASSY
NOTICE:

If the radiator cap is contaminatied, rinse it with water.

Before using a radiator cap tester, wet the relief valve
and the pressure valve with engine coolant or water.

When performing following steps (a) and (b), keep the
tester at an angle of over 30 above horizontal.

Radiator CapRadiator Cap Tester
30
or more
A51912
A36661
Turn 16±28
± COOLINGCOOLING SYSTEM (1AZ±FSE)
AVENSIS REPAIR MANUAL (RM1018E)
(a) Using a radiator cap tester, slowly pump the tester and
check that air is coming from the vacuum valve.
Pump speed: 1 push / 3 seconds or more
NOTICE:
Push the pump at a constant speed.
If air is not coming from the vacuum valve, replace the radiator
cap.
(b) Pump the tester and measure the relief valve opening
pressure.
NOTICE:
The following pump speed is for the first pump only (in or-
der to close the vacuum valve). After the first pump, the
pump speed can be reduced.
Pump speed: 1 push within 1 second
Standard opening pressure:
74 to 103 kPa (0.75 to 1.05 kgf/cm
2, 10.7 to 14.9 psi)
Minimum opening pressure:
59 kPa (0.6 kgf/cm
2, 8.6 psi)
If the opening pressure is less than minimum, replace the radia-
tor cap.
HINT:
Use the tester's maximum reading as the opening pressure.
3. INSPECT WATER PUMP ASSY
(a) Visually check the drain hole for coolant leakage.
If leakage is found, replace the water pump.
(b) Turn the pulley, and check that the water pump bearing
moves smoothly and does not make noise.
If necessary, replace the water pump.