2002 TOYOTA AVENSIS water pump

160N1±01
A78433
± COOLINGCOOLING SYSTEM (1AZ±FE)
16±13
AVENSIS REPAIR MANUAL (RM1018E)
COOLING SYSTEM (1AZ±FE)
ON±VEHICLE INSPECTION
1. INSPECT COOLING SYSTEM FOR LEAKS
CAUTION:
To avoid the danger of being burned, do not remove the ra-
diator cap while the engine and radiator are still hot. Ther-
mal expansion will cause hot engine coolant and steam to
blow out from the radiator.
(a) Remove the radiator support opening cover.
(b) Remove the engine room cover side.
(c) Fill the radiator with coolant and attach a radiator cap tes-
ter.
(d) Warm up the engine.
(e) Pump it to 137 kPa (1.4 kgf/cm
2, 19.9 psi), and check that
the pressure does not drop.
If the pressure drops, check the hoses, radiator and water
pump for leaks. If there are no signs or traces of external coolant
leaks, check the heater core, cylinder block and head.
(f) Reinstall the engine room cover side.
(g) Reinstall the radiator support opening cover.
2. CHECK ENGINE COOLANT LEVEL AT RESERVOIR
(a) The engine coolant should be between the ºLOWº and ºFULLº lines, when the engine is cold.
If low, check for leaks and add ºToyota Long Life Coolantº or equivalent up to the ºFULLº line.
3. 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. Thermal expansion will cause hot engine coolant and steam to blow out from the radiator.
(b) Check if there is any excessive deposits of rust or scale around the radiator cap and radiator filler hole;
the coolant should be free from oil.
If excessively dirty, replace the coolant.
(c) Reinstall the radiator cap.

Radiator CapRadiator Cap Tester
30
or more
A51912
A36661
Turn 16±16
± COOLINGCOOLING SYSTEM (1AZ±FE)
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:
93 to 122 kPa (0.95 to 1.25 kgf/cm
2, 13.4 to 17.6 psi)
Minimum opening pressure:
78 kPa (0.8 kgf/cm
2, 11.2 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.

160MY±01
A78433
± COOLINGCOOLING SYSTEM (1AZ±FSE)
16±25
AVENSIS REPAIR MANUAL (RM1018E)
COOLING SYSTEM (1AZ±FSE)
ON±VEHICLE INSPECTION
1. INSPECT COOLING SYSTEM FOR LEAKS
CAUTION:
To avoid the danger of being burned, do not remove the ra-
diator cap while the engine and radiator are still hot. Ther-
mal expansion will cause hot engine coolant and steam to
blow out from the radiator.
(a) Remove the radiator support opening cover.
(b) Remove the engine room cover side.
(c) Fill the radiator with coolant and attach a radiator cap tes-
ter.
(d) Warm up the engine.
(e) 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 and water
pump for leaks. If there are no signs or traces of external coolant
leaks, check the heater core, cylinder block and head.
(f) Reinstall the engine room cover side.
(g) Reinstall the radiator support opening cover.
2. CHECK ENGINE COOLANT LEVEL AT RESERVOIR
(a) The engine coolant should be between the ºLOWº and ºFULLº lines, when the engine is cold.
If low, check for leaks and add ºToyota Long Life Coolantº or equivalent up to the ºFULLº line.
3. 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. Thermal expansion will cause hot engine coolant and steam to blow out from the radiator.
(b) Check if there is any excessive deposits of rust or scale around the radiator cap and radiator filler hole;
the coolant should be free from oil.
If excessively dirty, replace the coolant.
(c) Reinstall the radiator cap.

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.

160N6±01
A78434
Radiator Cap Tester
± COOLINGCOOLING SYSTEM (1CD±FTV)
16±37
AVENSIS REPAIR MANUAL (RM1018E)
COOLING SYSTEM (1CD±FTV)
ON±VEHICLE INSPECTION
1. INSPECT COOLING SYSTEM FOR LEAKS
CAUTION:
To avoid the danger of being burned, do not remove the ra-
diator cap while the engine and radiator are still hot. Ther-
mal expansion will cause hot engine coolant and steam to
blow out from the radiator.
(a) Remove the radiator support opening cover.
(b) Remove the engine room cover side.
(c) Fill the radiator with coolant and attach a radiator cap tes-
ter.
(d) Warm up the engine.
(e) Pump it to 137 kPa (1.4 kgf/cm
2, 19.9 psi), and check that
the pressure does not drop.
If the pressure drops, check the hoses, radiator and water
pump for leaks. If there are no signs or traces of external coolant
leaks, check the heater core, cylinder block and head.
(f) Reinstall the engine room cover side.
(g) Reinstall the radiator support opening cover.
2. CHECK ENGINE COOLANT LEVEL AT RESERVOIR
(a) The engine coolant should be between the ºLOWº and ºFULLº lines, when the engine is cold.
If low, check for leaks and add ºToyota Long Life Coolantº or equivalent up to the ºFULLº line.
3. 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. Thermal expansion will cause hot engine coolant and steam to blow out from the radiator.
(b) Check if there is any excessive deposits of rust or scale around the radiator cap and radiator filler hole;
the coolant should be free from oil.
If excessively dirty, replace the coolant.
(c) Reinstall the radiator cap.

B08802
Radiator Cap Tester
30
or
more Reserve tank Cap
A55603Drain Hole
Turn
16±40
± COOLINGCOOLING SYSTEM (1CD±FTV)
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 reserve
tank 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:
93 to 122 kPa (0.95 to 1.25 kgf/cm
2, 13.4 to 17.6 psi)
Minimum opening pressure:
78 kPa (0.8 kgf/cm
2, 11.4 psi)
If the opening pressure is less than minimum, replace the re-
serve tank 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.

160N4±01
A79037
± COOLINGCOOLING SYSTEM (1ZZ±FE/3ZZ±FE)
16±1
AVENSIS REPAIR MANUAL (RM1018E)
COOLING SYSTEM (1ZZ±FE/3ZZ±FE)
ON±VEHICLE INSPECTION
1. INSPECT COOLING SYSTEM FOR LEAKS
CAUTION:
To avoid the danger of being burned, do not remove the ra-
diator cap while the engine and radiator are still hot. Ther-
mal expansion will cause hot engine coolant and steam to
blow out from the radiator.
(a) Remove the radiator support opening cover.
(b) Remove the engine room cover side.
(c) Fill the radiator with coolant and attach a radiator cap tes-
ter.
(d) Warm up the engine.
(e) 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 and water
pump for leaks. If there are no signs or traces of external coolant
leaks, check the heater core, cylinder block and head.
(f) Reinstall the engine room cover side.
(g) Reinstall the radiator support opening cover.
2. CHECK ENGINE COOLANT LEVEL AT RESERVOIR
(a) The engine coolant level should be between the ºLOWº and ºFULLº lines, when the engine is cold.
If low, check for leaks and add ºToyota Long Life Coolantº or equivalent up to the ºFULLº line.
3. 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. Thermal expansion will cause hot engine coolant and steam to blow out from the radiator.
(b) Check if there is any excessive deposits of rust or scale around the radiator cap and radiator filler hole;
the coolant should be free from oil.
If excessively dirty, replace the coolant.
(c) Reinstall the radiator cap.

Radiator CapRadiator Cap Tester
30
or more
A51912
A79816Hole
Turn 16±4
± COOLINGCOOLING SYSTEM (1ZZ±FE/3ZZ±FE)
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.