2000 TOYOTA CAMRY Service Repair Manual

reset infotainment system winter tires radio controls air conditioning height gas mileage

Page 289 of 4770

TOYOTA CAMRY 2000 Service Repair Manual RADIATOR
The radiator performs the function of cooling the coolant which has passed through the water
jacket and become hot, and it is mounted in the front of the vehicle. The radiator consists of an

RADIATOR
The radiator performs the function of cooling the coolant which has passed through the water
jacket and become hot, and it is mounted in the front of the vehicle. The radiator consists of an
upper tank and lower tank, and a core which connects the two tanks. The upper tank contains the
inlet for coolant from the water jacket and the filler inlet. It also has a hose attached through
which excess coolant or steam can flow. The lower tank has an outlet and drain cock for the
coolant. The core contains many tubes through which coolant flows from the upper tank to the
lower tank as well as to cooling fins which radiate heat away from the coolant in the tubes. The
air sucked through the radiator by the electric fan, as well as the wind generated by the vehicle's
travel, passes through the radiator, cooling the coolant. Models with automatic transmission
include an automatic transmission fluid cooler built into the lower tank of the radiator. A fan with
an electric motor is mounted behind the radiator to assist the flow of air through the radiator. The
fan operates when the engine coolant temperature becomes high in order to prevent it from be-
coming too high.
RADIATOR CAP
The radiator cap is a pressure type cap which seals the radiator, resulting in pressurization of the
radiator as the coolant expands. The pressurization prevents the coolant from boiling even when
the engine coolant temperature exceeds 100°C (212°F). A relief valve (pressurization valve) and a
vacuum valve (negative pressure valve) are built into the radiator cap. The relief valve opens and
lets steam escape through the overflow pipe when the pressure generated inside the cooling sys-
tem exceeds the limit (coolant temperature: 110±120°C (230±248°F), pressure; 58.8103.0 kpa
(0.6±1.05 kgf/cm
2, 8.5±14.9 psi). The vacuum valve opens to alleviate the vacuum which develops
in the cooling system after the engine is stopped and the engine coolant temperature drops. The
valve's opening allows the coolant in the reservoir tank to return to the cooling system.
RESERVOIR TANK
The reservoir tank is used to catch coolant which overflows from the cooling system as a result
of volumetric expansion when the coolant is heated. The coolant in the reservoir tank returns to
the radiator when the coolant temperature drops, thus keeping the radiator full at all times and
avoiding needless coolant loss.
Check the reservoir tank level to learn if the coolant needs to be replenished.
WATER PUMP
The water pump is used for forced circulation of coolant through the cooling system. It is
mounted on the front of the cylinder block and driven by a timing belt.
THERMOSTAT
The thermostat has a wax type bypass valve and is mounted in the water inlet housing. The
thermostat includes a type of automatic valve operated by fluctuations in the engine coolant
temperature. This valve closes when the engine coolant temperature drops, preventing the
circulation of coolant through the engine and thus permitting the engine to warm up rapidly. The
valve opens when the engine coolant temperature has risen, allowing the circulation of coolant.
Wax inside the thermostat expands when heated and contracts when cooled. Heating the wax
thus generates pressure which overpowers the force of the spring which keeps the valve closed,
thus opening the valve. When the wax cools, its contraction allows the force of the spring to take
effect once more, closing the valve. The thermostat in this engine operates at a temperature of
82C (180F).
± 5S±FE ENGINECOOLING SYSTEMEG1±239

Page 290 of 4770

TOYOTA CAMRY 2000 Service Repair Manual PREPARATION
SST (SPECIAL SERVICE TOOLS)
RECOMMENDED TOOLS
09082±00050 TOYOTA Electrical Tester Set09230±01010 Radiator Service Tool Set
6.3 liters (6.7 US qts, 5.5 Imp. qts)Engine coolant temperatur

Page 291 of 4770

TOYOTA CAMRY 2000 Service Repair Manual 2. CHECK ENGINE COOLANT QUALITY
There should not be any excessive deposits of rust or
scales around the radiator cap or radiator filler hole,
and the engine coolant should be free from oil.
If excessi

Page 292 of 4770

TOYOTA CAMRY 2000 Service Repair Manual WATER PUMP REMOVAL
1. DISCONNECT NEGATIVE (±) TERMINAL CABLE
FROM BATTERY
CAUTION: Work must be started after 90 seconds
from the time the Ignition switch is turned to the
ªLOCKº position and the n

Page 293 of 4770

TOYOTA CAMRY 2000 Service Repair Manual (b) Remove the 3 bolts in the sequence shown.
(c) Pull out the water pump together with the water pump
cover.
(d) Remove the gasket and 2 O±rings from the water
pump and water bypass pipe.
9. SEPARAT

Page 294 of 4770

TOYOTA CAMRY 2000 Service Repair Manual (See Components for Removal and Installation)
1. INSTALL THERMOSTAT AND WATER INLET TO
WATER PUMP COVER
(a) Install a new gasket to the thermostat.
(b) Align the jiggle valve of the thermostat with

Page 295 of 4770

TOYOTA CAMRY 2000 Service Repair Manual 2. ASSEMBLE WATER PUMP AND WATER PUMP
COVER
Install a new gasket and the water pump to the pump
cover with the 3 bolts.
Torque: 9.3 N±m (95 kgf±cm, 82 In.±lbf)
(c) Apply soapy water to the O±ri

Page 296 of 4770

TOYOTA CAMRY 2000 Service Repair Manual 7. TEMPORARILY INSTALL NO.1 IDLER PULLEY AND
TENSION SPRING
(a) Install the pulley with the bolt. Do not tighten the bolt
yet.
HINT: Use bolt 42 mm (1.65 in.) in length.
(b) Install the

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