Page 2349 of 4770
CO066±03
± COOLING (5S±FE)COOLANT
CO±1
1575 Author: Date:
COOLANT
INSPECTION
HINT:
Check the coolant level when the engine is cold.
1. CHECK ENGINE COOLANT LEVEL AT RADIATOR RESERVOIR
The engine coolant level should be between the ºLOWº and ºFULLº lines.
If low, check for leaks and add ºToyota Long Life Coolantº or equivalent up to the ºFULLº line.
2. CHECK ENGINE COOLANT QUALITY
(a) Remove the radiator cap.
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 radiator filler
hole, and the coolant should be free from oil.
If excessively dirty, replace the coolant.
(c) Reinstall the radiator cap.
Page 2350 of 4770

CO067±03
Z18990
Radiator Drain Plug
Engine Drain Plug CO±2
± COOLING (5S±FE)COOLANT
1576 Author: Date:
REPLACEMENT
1. DRAIN ENGINE COOLANT
(a) Remove the 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.
(b) Loosen the radiator drain plug (on the right side of the ra-
diator lower tank) and engine drain plug (on the left rear
of the cylinder block), and drain the coolant.
(c) Close the drain plugs.
Torque: 25 N´m (250 kgf´cm, 18 ft´lbf) for engine
2. FILL ENGINE COOLANT
(a) Slowly fill the system with coolant.
Use of improper coolants may damage engine cool-
ing system.
Use ºToyota Long Life Coolantº or equivalent and
mix it with plan water according to the manufactur-
er's directions.
Using of coolant which includes more than 50 %
(freezing protection down to ±35°C (±31°F) or 60 %
(freezing protection down to ±50°C (±58°F)) of eth-
ylene±glycol is recommended but not more than 70
%.
NOTICE:
Do not use an alcohol type coolant or plain water
alone.
The coolant should be mixed with plain water (prefer-
ably demineralized water or distilled water).
Capacity:
w/ Oil cooler6.9 litters (7.3 US qts, 6.1 lmp. qts)
w/o Oil cooler6.2 litters (6.5 US qts, 5.4 lmp. qts)
(b) Install the radiator cap.
(c) Start the engine, and bleed the cooling system.
(d) Refill the radiator reservoir with coolant until it reaches the
ºFULLº line.
3. CHECK FOR COOLANT LEAKS
Page 2352 of 4770
S05939
No.2 Timing Belt
Cover
No.1 Timing Belt
Cover
Crankshaft
Pulley
No.2 Idler Pulley
Generator Drive Belt
Adjusting Bar
Wire Clamp
Crankshaft Position Sensor
Connector* Gasket
No.1 Idler Pulley
Tension Spring
O±Ring
Water PumpWater PumpTiming Belt
Timing Belt Guide
Lower
Radiator
Hose Water Pump and
Water Pump Cover
Assembly High±Tension Cord Generator Wire
Gasket Wire Clamp
Wire Clamp
Wire ClampWire Clamp Wire
Clamp
* GasketGenerator Connector
Generator
Spark Plug
O±Ring
Gasket
N´m (kgf´cm, ft´lbf): Specified torque
Non±reusable part
108 (1,100, 80)18 (180,13)
42 (425,31)
42 (425,31)
* Replace only if damagedCover CO±4
± COOLING (5S±FE)WATER PUMP
1578 Author: Date:
Page 2353 of 4770
CO069±04
S05599
S05924
S05963
1
2
3
± COOLING (5S±FE)WATER PUMP
CO±5
1579 Author: Date:
REMOVAL
1. DRAIN ENGINE COOLANT
2. REMOVE TIMING BELT (See page EM±17)
3. DISCONNECT LOWER RADIATOR HOSE FROM WA-
TER OUTLET
4. REMOVE TIMING BELT TENSION SPRING
Loosen the No.1 idler pulley bolt, and remove the tension
spring.
5. REMOVE NO.2 IDLER PULLEY
Remove the bolt and idler pulley.
6. w/ Oil Cooler:
REMOVE A/C COMPRESSOR (See page EM±69)
7. REMOVE GENERATOR DRIVE BELT ADJUSTING
BAR
(a) Disconnect the engine wire clamp from the adjusting bar.
(b) Disconnect the crankshaft position sensor connector
from the bracket on the adjusting bar.
(c) Remove the bolt and adjusting bar.
8. REMOVE WATER PUMP AND WATER PUMP COVER
ASSEMBLY
(a) Remove the 2 nuts holding the water pump to the water
bypass pipe.
(b) Remove the 3 bolts in the sequence shown.
Page 2357 of 4770
± COOLING (5S±FE)WATER PUMP
CO±9
1583 Author: Date:
6. INSTALL TIMING BELT TENSION SPRING
(See page EM±23)
7. CONNECT LOWER RADIATOR HOSE TO WATER IN-
LET
8. INSTALL TIMING BELT (See page EM±23)
9. FILL WITH ENGINE COOLANT
10. START ENGINE AND CHECK FOR COOLANT LEAKS
Page 2362 of 4770
CO06G±03
CO±14
± COOLING (5S±FE)RADIATOR
1588 Author: Date:
RADIATOR
ON±VEHICLE 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 careful not to deform the fins of the radiator core. (i.e. Main-
tain a distance between the cleaner nozzle and radiator core.)
Page 2363 of 4770

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
Page 2364 of 4770
CO06I±03
S05951
No.2 Electric
Cooling Fan
Connector
Radiator Assembly
Lower Radiator
Support
Lower Radiator Hose
Upper Radiator Hose
Oil Cooler Hose for A/TUpper Radiator Support
No.1 Electric Cooling Fan Connector
ECT Switch Connector
for Electric Cooling Fan Upper Radiator Support Radiator Reservoir Hose CO±16
± COOLING (5S±FE)RADIATOR
1590 Author: Date:
COMPONENTS