check engine TOYOTA CAMRY 2000 Service Repair Manual

2. CONNECT TACHOMETER TO ENGINE
Connect the test probe of a tachometer to terminal IG
(±) of the data link connector 1.
NOTICE:
wNEVER allow the tachometer terminal to touch
ground as it could result in damage to the igniter
and/or ignition coil.
wAs some tachometers are not compatible with this
ignition system, we recommend that you confirm
the compatibility of yours before use.
3. INSPECT FUEL CUT RPM
(a) Increase the engine speed to at least 2,500 rpm.
(b) Use a sound scope to check for injector operating
noise.
(c) Check that when the throttle lever is released, injector
operation noise stops momentarily and then resumes.
HINT: Measure with the A/C OFF.
Fuel return speed:
1,500 rpm
4. DISCONNECT TACHOMETER
FUEL CUT RPM
FUEL CUT RPM INSPECTION
1. WARM UP ENGINE
Allow the engine to warm up to normal operating
temperature.
± 5S±FE ENGINEMFI/SFI SYSTEMEG1±235

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
82
C (180
F).
± 5S±FE ENGINECOOLING SYSTEMEG1±239

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 excessively dirty, replace the engine coolant.
3. REPLACE ENGINE COOLANT
(a) Remove the radiator cap.
CAUTION: To avoid the danger of being burned, do not
remove It while the engine and radiator are still hot, as
fluid and steam can be blown out under pressure.
(b) Drain the engine coolant from the radiator drain cock
and engine drain plug. (Engine drain plug at the right
rear of cylinder block.)
(c) Close the drain cock and plug.
Torque (Engine drain plug):
13 N±m (130 kgf±cm, 9 ft±lbf)
(d) Slowly fill the system with coolant.
Use a good brand of ethylene±glycol base
coolant and mix it according to the
manufacturer 's directions.
Using engine coolant which includes more than
5096 ethylene±glycol (but not more than 7096) is
recommended.
NOTICE:
wDo not use a alcohol type coolant.
wThe engine coolant should be mixed with demineral±
ized water or distilled water.
Capacity (w/ Heater):
8.3 liters (6.7 US qts, 5.5 Imp.qts)
(a) Reinstall the radiator cap.
(f) Warm up the engine and check for leaks.
(g) Recheck the engine coolant level and refill as neces±
sary.
COOLANT CHECK AND
REPLACEMENT
1. CHECK ENGINE COOLANT LEVEL AT RESERVOIR
TANK
The engine coolant level should be between the
ºLOWº and ªFULLº lines.
If low, check for leaks and add engine coolant up to
the ªFULLº line.
± 5S±FE ENGINECOOLING SYSTEMEG1±241

(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 the upper
side of the stud bolt, and insert the thermostat in the
water pump.
HINT: The jiggle valve may be set within 5
of either
side of the prescribed position. 10. REMOVE WATER INLET AND THERMOSTAT FROM
WATER PUMP COVER
(a) Remove the 2 nuts and water inlet from the water
pump.
(b) Remove the thermostat.
(c) Remove the gasket from the thermostat.
WATER PUMP INSPECTION
INSPECT WATER PUMP
Turn the pulley and check that the water pump bear±
ing moves smoothly and quietly.
(c) Install the water inlet with the 2 nuts.
Torque: 8.8 N±m (90 kgf±cm. 78 in.±lbf)
WATER PUMP INSTALLATION
± 5S±FE ENGINECOOLING SYSTEMEG1±244

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 tension spring.
(c) Pry the pulley toward the left as far as it will go and
tighten the bolt.
(d) Check that the idler pulley moves smoothly.
8. INSTALL TIMING BELT (See page EG1±33)
9. CONNECT NEGATIVE (±) TERMINAL CABLE TO
BATTERY
10. FILL WITH ENGINE COOLANT
(See page EG1±241) 6. INSTALL NO.2 IDLER PULLEY
(a) Install the pulley with the bolt.
Torque: 42 N±m (425 kgf±cm, 31 ft±lbf)
HINT: Use a bolt 35 mm (1.38 in.) in length.
(b) Check that the idler pulley moves smoothly. 4. INSTALL GENERATOR BELT ADJUSTING BAR
Temporarily install the adjusting bar with the bolt.
5. CONNECT LOWER RADIATOR HOSE TO WATER
INLET (f) Install the 2 nuts holding the water pump cover to the
water bypass pipe.
Torque: 8.8 N±m (90 kgf±cm, 78 in.±Ibf)
± 5S±FE ENGINECOOLING SYSTEMEG1±246

THERMOSTAT INSTALLATION
(See Components for Removal and Installation)
1. PLACE THERMOSTAT IN WATER PUMP
(a) Install a new gasket to the thermostat.
(b) Align the jiggle valve of the thermostat with the upper
side of the stud bolt, and insert the thermostat in the
water pump.
HINT: The jiggle valve may be set within 5
of either
side of the prescribed position.
2. INSTALL WATER INLET
Install the water inlet with the 2 nuts.
Torque: 8.8 N±m (90 kgf±cm, 78in.±Ibf)
(c) Check the valve lift.
Valve rift:
8 mm (0.31 in.) or more at 95
C (203
F)
If the valve lift is not as specified, replace the thermo±
stat.
(d) Check that the valve spring is tight when the thermo±
stat is fully closed.
If not closed, replace the thermostat. (a) Immerse the thermostat in water and gradually heat
the water.
(b) Check the valve opening temperature.
Valve opening temperature:
80 ± 84
C (176 ± 183
F)
If the valve opening temperature is not as specified,
replace the thermostat.
THERMOSTAT INSPECTION
INSPECT THERMOSTAT
HINT: The thermostat is numbered with the valve
opening temperature.
± 5S±FE ENGINECOOLING SYSTEMEG1±248

7. CHECK ENGINE OIL LEVEL
The oil level should be between the ªLº and ªFº marks
on the dipstick.
If low, check for leakage and add oil up to ªFº mark. (c) Tighten the oil filter by hand until the rubber gasket
contacts the seat of the filter mounting. Then using
SST, give it an additional 3/4 turn to seat the oil filter.
SST 09228±06500
4. FILL WITH ENGINE OIL
5. FILL WITH ENGINE COOLANT (SEE PAGE EG1±241)
6. START ENGINE AND CHECK FOR LEAKS 3. INSTALL OIL FILTER
(a) Clean the oil filter contact surface on the filter
mounting.
(b) Lubricate the filter rubber gasket with engine oil.
± 5S±FE ENGINECOOLING SYSTEMEG1±249

1. INSPECT RADIATOR CAP
NOTICE: When performing steps (a) and (b) below, keep
the radiator pump 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 relief valve.
Pump speed:
1 push/ 3 seconds or more
NOTICE: Push the pump at a constant speed.
If air is not coming from the relief valve, replace the
radiator cap.
(b) Pump the tester several times and measure the relief
valve opening pressure.
Pump speed:
1 at time
1 push/1 second or less
2nd time or more
Any speed
Standard opening pressure:
74±103 kPa
(0.75±1.05 kgf/cm
, 10.7 ± 14.9 psi)
Minimum opening pressure:
59 kPa (0.6 kgf/cm
, 8.5 psi)
If the opening pressure is less than minimum, replace
the radiator cap.
RADIATOR
RADIATOR CLEANING
Using water or a steam cleaner, remove any mud or
dirt from the radiator core.
NOTICE: If using a high pressure type cleaner, be care±
full not to deform the fins of the radiator core. If the
cleaner nozzle pressure is 2,942 ± 3,432 kPa (30 ± 35
kgf/cm
, 427 ± 498 psi), keep a distance of at least 40
cm (15.75 in.) between the radiator core and cleaner
nozzle.
RADIATOR INSPECTION
± 5S±FE ENGINECOOLING SYSTEMEG1±250

2. INSPECT COOLING SYSTEM FOR LEAKS
(a) Fill the radiator with coolant and attach a radiator cap
tester.
(b) Warm up the engine.
(c) Pump it to 118 kPa (1.2 kgf/cm
, 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.
RADIATOR 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 negative (±) terminal cable is discon±
nected from the battery.
COMPONENTS FOR REMOVAL AND
INSTALLATION
± 5S±FE ENGINECOOLING SYSTEMEG1±251

2. INSPECT LOCK PLATE
Inspect the lock plate for damage.
HINT:
wIf the sides of the lock plate groove are deformed,
reassembly of the tank will be impossible.
wTherefore, first correct any deformation with pliers or
similar object. Water leakage will result if the bottom
of the lock plate groove is damaged or dented. There±
fore, repair or replace if necessary.
4. ASSEMBLE SST
SST 09230±01010
(a) Install the punch assembly to the overhaul handle,
inserting it in the hole in part ªAº as shown in the
illustration.
(b) While gripping the handle, adjust the stopper bolt so
that dimension ªBº shown in the diagram is 7.7 mm
(0.03 in.) 3. INSTALL NEW O±RINGS AND TANKS
(a) After checking that there are no foreign objects in the
lock plate groove, install the new O±ring without
twisting it.
HINT: When cleaning the lock plate groove, lightly rub
it with sand paper without scratching it.
(b) Install the tank without damaging the 0±ring.
(c) Tap the lock plate with a soft±faced hammer so that
there is no gap between it and the tank.
5. CAULK LOCK PLATE
(a) Lightly press SST against the lock plate in the order
shown in the illustration.
± 5S±FE ENGINECOOLING SYSTEMEG1±256