Cooling System - Toyota 1NZ-FE User Manual

EG-12
JCOOLING SYSTEM
D The cooling system is a pressurized, forced-circulation type.
D A thermostat with a bypass valve is located on the water inlet housing to maintain suitable temperature
distribution in the cooling system.
D An aluminum radiator core is used for weight reduction.
D The flow of the engine coolant makes a U-turn in the cylinder block to ensure a smooth flow of the engine
coolant.
D A single cooling fan provides both the cooling and air conditioner performance.
D The TOYOTA genuine Super Long Life Coolant (SLLC) is used.
Water Pump
From Radiator
" A
System Diagram
Bypass
Passage
Water Pump
Thermostat
ENGINE - 1NZ-FE ENGINE
Cylinder Head
Cylinder Block
Radiator
From Heater Core
To Radiator
To Heater Core
To Throttle Body
00REG16Y
Heater Core
Throttle
Body
193EG08