Cooling system 1ZZ-FE and 3ZZ-FE — design description Pic. 2.16. Engine cooling system 1ZZ-FE AND 3ZZ-FE Pic. 2.17. Block diagram of the cooling system for engines 1ZZ-FE AND 3ZZ-FE Closed cooling system with forced circulation. Includes thermostat with bypass valve; the...
CD-FTV cooling system — design description Pic. 2.72. Engine cooling system 1CD-FTV Closed cooling system with forced circulation. To avoid deterioration of the quality of the coolant when it comes into contact with air, a sealed expansion tank is installed in...
Vehicle checks (1ZZ-FE / 3ZZ-FE) Checking for leaks in the cooling system Remove the top radiator shroud. Remove the radiator cap. Attention! Do not remove the radiator cap when the engine and radiator are at high temperature, otherwise burns may...
Vehicle checks (1CD-FTV) Checking for leaks in the cooling system Remove the top radiator shroud. Attention! Do not remove the radiator cap when the engine and radiator are at high temperature, otherwise burns may result. Hot coolant and steam...
Thermostat check (1ZZ-FE / 3ZZ-FE) Valve opening temperature check Pic. 2.393. Immersion thermostat in water Immerse the thermostat in water and heat it up gradually (pic. 2.393). Pic. 2.392. Marking indicating the opening temperature of the valve Note....
Thermostat replacement (1ZZ-FE / 3ZZ-FE) Removing Disconnect the negative terminal from the battery terminal. Remove the lower left engine shield. Remove the #1 engine bottom guard. Remove the lower right engine cover. Remove the top radiator shroud. Remove...
Thermostat replacement (1CD-FTV) Removing Remove the top radiator shroud. Drain the coolant. Disconnect the No. 1 coolant bypass hose, No. 2 coolant bypass hose, and breather hose. Pic. 2.398. Expansion tank assy Turn out 2 bolts and remove a broad...
Replacing the liquid in the cooling system (1ZZ-FE / 3ZZ-FE) Coolant drain Remove the top radiator shroud. Drain the coolant. Attention! Do not remove the radiator cap when the engine and radiator are at high temperature, otherwise burns may result. Hot coolant and steam may...
Replacing the liquid in the cooling system (1CD-FTV) Coolant drain Remove the expansion tank cap. Attention! Do not remove the radiator cap when the engine and radiator are at high temperature, otherwise burns may result. Hot coolant and steam may escape from the...
Checking the cooling fan (1ZZ-FE / 3ZZ-FE) Checking the operation of the cooling fan at low temperatures (below 94.5°C). Note. If the ignition is on (ON (IG)), the cooling fan may sometimes turn on. This is not a malfunction. Turn on the ignition (ON (START)),...
Checking the cooling fan (1CD-FTV) Checking the operation of the cooling fan at low temperatures (below 83°C) Turn on the ignition (START (IG)). Make sure the cooling fan is not spinning. Turn off the ignition (START (IG)). Disconnect the temperature...
Checking the cooling fan relay Checking the cooling fan relay No. 1 Check resistance. Pic. 2.409. Relay resistance test #1 Measure the resistance between the terminals with an ohmmeter (pic. 2.409). Verification conditions If the resistance is not...
Replacing the water pump assembly (1ZZ-FE / 3ZZ-FE) Removing Disconnect the negative terminal from the battery terminal Remove the lower left engine shield. Remove the #1 engine bottom guard. Remove the lower right engine cover. Remove the top radiator shroud. Remove the...
Replacing the radiator assembly (1ZZ-FE / 3ZZ-FE) Disconnect the negative terminal from the battery terminal. Remove the #1 engine bottom guard. Remove the top radiator shroud. Drain the coolant. Disconnect the radiator inlet hose. Disconnect the radiator outlet hose....
Replacing the radiator assembly (1CD-FTV) Drain the coolant. Disconnect the negative terminal from the battery terminal. Remove the top radiator shroud. Removal of the lock of a cowl assy Disconnect the breather hose. Disconnect 2 horn connectors. Pic. 2.421....