Car engine cooling system Toyota Corolla 5 (E80)

Main elements of the cooling system
Cooling system for 1.6L engine (4A-FE) The engine cooling system consists of a radiator, coolant pump, thermostat and electric fan. The cooling system has thermostatic control. Until the engine is warmed up, the coolant...

Cooling liquid
At the manufacturing plant, the cooling system is filled with a coolant, which is a mixture of water, antifreeze, and anticorrosive additives. This composition of the coolant prevents it from freezing, prevents...

Removal, installation and checking the thermostat
As the coolant temperature rises, the thermostat opens and directs the coolant flow through the radiator. If, due to some malfunction, the thermostat valve does not open, the engine overheats. This can be determined by...

Checking the fan switch temperature sensor
Depending on the version, the temperature sensor is located either in the radiator or in the coolant inlet pipe. It switches on the fan when the coolant reaches a certain temperature. The temperature sensor is subject...

Removal and installation the radiator
As a result of long-term operation of the car, the radiator channels can become clogged with limescale deposits. As a result, the efficiency of the radiator is sharply reduced, and the engine overheats. In this case, it...

Removal and installation the fan electric motor
Removal Disconnect the ground (-) cable from the battery. Note: This will erase the on-board computer records, in particular the fault records and the radio receiver code. Before disconnecting the battery, please read...

Checking the cooling system for leaks
The presence of leaks in the cooling system and the operation of the safety valve in the radiator cap can be checked using a special device. Instead of the radiator cap, screw in the device adapter. Caution: Cover the...

Checking, removing and installing the coolant temperature sensor
The sensor measures the temperature of the coolant and transmits the corresponding signal to the temperature indicator on the dashboard kit of the front panel ("dashboard"). The sensor contains a sensor element with a...

Removal and installation the coolant pump (petrol)
The coolant pump is not repairable. If damaged, the pump is replaced entirely. If the shaft seals are damaged, the coolant will leak out at the air bleed hole of the pump drive shaft. Removal In petrol engines, the...

Removal and installation the coolant pump (diesel)
Removal The diesel coolant pump is driven by a toothed belt. Disconnect the ground (-) cable from the battery. Warning: This will erase the on-board computer records, in particular the fault records and the radio...

Changing the coolant
The coolant is changed during the process maintenance car. Caution: If the fluid is drained during repair, it must be collected in a container for reuse, as it contains antifreeze and anti-corrosion additives. If the...

Cooling system malfunctions
Cooling system malfunctions Malfunction: Coolant temperature is too high. Temperature gauge needle is in the red zone.

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