engine coolant TOYOTA CAMRY 1999 Service Service Manual

CO06D±03
S05322
± COOLING (5S±FE)THERMOSTAT
CO±11
1585 Author: Date:
REMOVAL
HINT:
Removal of the thermostat would have an adverse effect, caus-
ing a lowering of cooling efficiency. Do not remove the thermo-
stat, even if the engine tends to overheat.
1. DRAIN ENGINE COOLANT
2. w/ Oil Cooler:
REMOVE OIL FILTER (See page LU±2)
3. REMOVE WATER INLET AND THERMOSTAT
(a) Remove the 2 nuts, and disconnect the water inlet from
the water pump cover.
(b) Remove the thermostat.
(c) Remove the gasket from the thermostat.

CO0SN±01
P13611
Protrusion
Jiggle
Valve5°5°
S05322
± COOLING (5S±FE)THERMOSTAT
CO±13
1587 Author: Date:
INSTALLATION
1. PLACE THERMOSTAT IN WATER INLET
(a) Install a new gasket to the thermostat.
(b) Align the jiggle valve of the thermostat with the protrusion
of the water inlet, and insert the thermostat in the water
inlet.
HINT:
The jiggle valve may be set within 5° of either side of the pre-
scribed position.
2. INSTALL WATER INLET AND THERMOSTAT
Install the water inlet and thermostat with the 2 nuts.
Torque: 8.8 N´m (90 kgf´cm, 78 in.´lbf)
3. w/ Oil Cooler:
INSTALL OIL FILTER (See page LU±2)
4. FILL WITH ENGINE COOLANT
5. START ENGINE AND CHECK FOR COOLANT LEAKS
6. CHECK ENGINE OIL LEVEL

CO06H±04
Z00570
30° or More
Radiator CapRadiator Cap Tester
B06362
Radiator Cap Tester
± COOLING (5S±FE)RADIATOR
CO±15
1589 Author: Date:
ON±VEHICLE INSPECTION
1. REMOVE RADIATOR CAP
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.
2. INSPECT RADIATOR CAP
NOTICE:

If the radiator cap has contaminations, always rinse
it with water.

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

When performing steps (a) and (b) below, keep the
tester at an angle of over 30° above the horizontal.
(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.
Pump speed: 1 push within 1 second
NOTICE:
This pump speed is for the first pump only (in order to close
the vacuum valve). After this, the pump speed can be re-
duced.
Standard opening pressure:
74 ± 103 kPa (0.75 ± 1.05 kgf/cm
2, 10.7 ± 14.9 psi)
Minimum opening pressure:
59 kPa (0.6 kgf/cm
2, 8.5 psi)
HINT:
Use the tester's maximum reading as the opening pressure.
If the opening pressure is less than minimum, replace the radia-
tor cap.
3. INSPECT COOLING SYSTEM FOR LEAKS
(a) Fill the radiator with coolant, and attach a radiator cap tes-
ter.
(b) Warm up the engine.
(c) Pump it to 118 kPa (1.2 kgf/cm
2, 17.1 psi), and check that
the pressure does not drop.
If the pressure drops, check the hoses, radiator or water pump
for leaks. If no external leaks are found, check the heater core,
cylinder block and head.
4. REINSTALL RADIATOR CAP

CO06J±04
S05955
CO±18
± COOLING (5S±FE)RADIATOR
1592 Author: Date:
REMOVAL
1. DRAIN ENGINE COOLANT
2. REMOVE RADIATOR ASSEMBLY
(a) Disconnect the No.1 electric cooling fan connector.
(b) Disconnect the No.2 electric cooling fan connector.
(c) Disconnect the ECT switch connector for the electric cool-
ing fan.
(d) Disconnect the upper radiator hose from the radiator.
(e) Disconnect the lower radiator hose from the water inlet.
(f) Disconnect the radiator reservoir hose from the radiator.
(g) A/T:
Disconnect the 2 oil cooler hoses from the oil cooler pipes.
(h) Remove the 2 bolts and 2 upper radiator supports.
(i) Remove the radiator assembly.
(j) Remove the 2 lower radiator supports.
(k) Remove the lower radiator hose from the radiator.
(l) A/T:
Remove the 2 oil cooler hoses from the radiator.
3. REMOVE NO.1 ELECTRIC COOLING FAN FROM RA-
DIATOR
(a) Disconnect the ECT switch connector for the cooling fan.
(b) Disconnect the ECT switch wire clamp for the cooling fan
from the bracket of the radiator.
(c) Remove the 2 bolts and cooling fan.
4. REMOVE NO.2 ELECTRIC COOLING FAN FROM RA-
DIATOR
Remove the 2 bolts and cooling fan.

CO06M±03
S05955
± COOLING (5S±FE)RADIATOR
CO±23
1597 Author: Date:
INSTALLATION
1. INSTALL NO.1 ELECTRIC COOLING FAN TO RADIA-
TOR
(a) Attach the lower side of the cooling fan to the bracket of
the radiator.
(b) Install the cooling fan with the 2 bolts.
(c) Connect the ECT switch connector for the cooling fan.
(d) Install the ECT switch wire clamp for the cooling fan to the
bracket of the radiator.
Torque: 5.0 N´m (50 kgf´cm, 44 in.´lbf)
2. INSTALL NO.2 ELECTRIC COOLING FAN TO RADIA-
TOR
(a) Attach the lower side of the cooling fan to the bracket of
the radiator.
(b) Install the cooling fan with the 2 bolts.
Torque: 5.0 N´m (50 kgf´cm, 44 in.´lbf)
3. INSTALL RADIATOR ASSEMBLY
(a) Install the lower radiator hose to the radiator.
(b) A/T:
Install the 2 oil cooler hoses to the radiator.
(c) Install the 2 lower radiator supports to the radiator.
(d) Attach the 2 lower radiator supports on the radiator to the
body brackets.
(e) Install the 2 upper radiator supports with the 2 bolts.
Torque: 12.8 N´m (130 kgf´cm, 9 ft´lbf)
(f) Connect the upper radiator hose to the radiator.
(g) Connect the lower radiator hose to the water inlet.
(h) Connect the radiator reservoir hose to the radiator.
(i) A/T:
Connect the 2 oil cooler hoses to the oil cooler pipes.
(j) Connect the No.1 electric cooling fan connector.
(k) Connect the No.2 electric cooling fan connector.
(l) Connect the ECT switch connector for the electric cooling
fan.
4. FILL WITH ENGINE COOLANT
5. START ENGINE AND CHECK FOR COOLANT LEAKS

S05959
CO06N±03
S05953
ECT Switch
Connector
Z19282
No.1
No.2Battery
Ammeter (±)
(+) (+)
(±)
Battery Ammeter CO±24
± COOLING (5S±FE)ELECTRIC COOLING FAN
1598 Author: Date:
ELECTRIC COOLING FAN
ON±VEHICLE INSPECTION
1. CHECK COOLING FAN OPERATION WITH LOW TEM-
PERATURE (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 ECT switch, and check
for a separated connector or severed wire between the cooling
fan relay and ECT switch.
(c) Disconnect the ECT switch connector.
(d) Check that the cooling fan rotates.
If not, check the fan main relay, cooling fan relay, cooling fan,
fuses, and check for short circuit between the cooling fan relay
and ECT switch.
(e) Reconnect the ECT switch connector.
2. CHECK COOLING FAN OPERATION WITH HIGH TEM-
PERATURE (Above 93°C (199°F))
(a) Start the engine, and raise coolant temperature to above
93°C (199°F).
(b) Check that the cooling fan rotates.
If not, replace the ECT switch.
3. INSPECT COOLING FANS
(a) Disconnect the cooling fan connector.
(b) Connect battery and ammeter to the connector.
(c) Check that the cooling fan rotates smoothly, and check
the reading on the ammeter.
Standard amperage: 4.9 ± 8.5 A
(d) Reconnect the cooling fan connector.

CO06P±03
S05956
S05957
± COOLING (5S±FE)ELECTRIC COOLING FAN
CO±27
1601 Author: Date:
REMOVAL
1. REMOVE NO.1 COOLING FAN
(a) Drain the engine coolant.
(b) Disconnect the upper radiator hose from the radiator.
(c) Remove the No.1 cooling fan.
(1) Disconnect the cooling fan connector.
(2) Disconnect the ECT switch connector.
(3) Remove the 2 bolts, and disconnect the cooling fan
from the radiator.
(4) Disconnect the connector holder and wire for the
ECT switch from the fan shroud, and remove the
cooling fan.
2. REMOVE NO.2 COOLING FAN
(a) Disconnect the cooling fan connector.
(b) Remove the 2 bolts and cooling fan.

CO06S±03
S06016Attach
S06017Attach CO±30
± COOLING (5S±FE)ELECTRIC COOLING FAN
1604 Author: Date:
INSTALLATION
1. INSTALL NO.1 COOLING FAN
(a) Install the No.1 cooling fan.
(1) Attach the lower side of the cooling fan to the brack-
et of the radiator.
(2) Install the cooling fan with the 2 bolts.
Torque: 5.0 N´m (50 kgf´cm, 44 in.´lbf)
(3) Install the wire and connector holder for the ECT
switch to the fan shroud.
(4) Connect the cooling fan connector.
(5) Connect the ECT switch connector.
(b) Connect the upper radiator hose to the radiator
(c) Fill with engine coolant
(d) Start the engine and check for coolant leaks
2. INSTALL NO.2 COOLING FAN
(a) Attach the lower side of the cooling fan to the bracket of
the radiator.
(b) Install the cooling fan with the 2 bolts.
Torque: 5.0 N´m (50 kgf´cm, 44 in.´lbf)
(c) Connect the cooling fan connector.

CO06T±03
S05245
ECT Switch Connector
O±RingECT
Switch
P05962
Ohmmeter
± COOLING (5S±FE)ENGINE COOLANT TEMPERATURE (ECT) SWITCH
CO±31
1605 Author: Date:
ENGINE COOLANT
TEMPERATURE (ECT) SWITCH
INSPECTION
1. DRAIN ENGINE COOLANT
2. REMOVE ECT SWITCH
(a) Disconnect the connector.
(b) Remove the ECT switch.
(c) Remove the O±ring from the ECT switch.
3. INSPECT ECT SWITCH
(a) Using an ohmmeter, check that there is no continuity be-
tween the terminals when the coolant temperature is
above 93°C (199°F).
If there is continuity, replace the switch.
(b) Using an ohmmeter, check that there is continuity be-
tween the terminals when the coolant temperature is be-
low 83°C (181°F).
If there is no continuity, replace the switch.
4. REINSTALL ECT SWITCH
(a) Install a new O±ring to the ECT switch.
(b) Install the ECT switch.
(c) Connect the connector.
5. REFILL WITH ENGINE COOLANT
6. START ENGINE AND CHECK FOR COOLANT LEAKS

CO03B±04
± COOLING (1MZ±FE)COOLANT
CO±1
1609 Author: Date:
COOLANT
INSPECTION
1. CHECK ENGINE COOLANT LEVEL AT RADIATOR RESERVOIR
The engine coolant level should be between the ºLOWº and ºFULLº lines, when the engine is cold.
If low, check for leaks and add ''Toyota Long Life Coolantº or Equivalent up to the ºFULLº line.
2. CHECK ENGINE COOLANT QUALITY
(a) Remove the radiator cap from the water outlet.
CAUTION:
To avoid the danger of being burned, do not remove the radiator cap while the engine and radiator
are still hot, as fluid and steam can be blown out under pressure.
(b) There should not be any excessive deposits of rust or scale around the radiator cap or water outlet
filler hole, and the coolant should be free from oil.
If excessively dirty, clean the coolant passages and replace the coolant.
(c) Reinstall the radiator cap.