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12.2. Cooling system

Overheat:

– lack of cooling liquid of the cooling system;
– the thermostat is faulty;
– the radiator or its lattice is polluted;
– the radiator fan is faulty;
– the temperature sensor is faulty;
– traffic jams in the cooling system;
– the stopper of a broad tank is faulty.

Low temperature of the engine:

– the thermostat is faulty;
– the temperature sensor is faulty;
– the radiator fan is faulty.

Leak of cooling liquid:

– damage of hoses or their unreliable fastening by collars;
– the radiator of the cooling system or a radiator of a heater is untight;
– the stopper of a broad tank is faulty;
– consolidation of the water pump is untight;
– boiling of cooling liquid because of an overheat;
– traffic jams in the cooling system.

Internal leak of cooling liquid:

– laying of a head of the block of cylinders is punched;
– cracks in a head of the block of cylinders or the block of cylinders.

Corrosion:

– change of cooling liquid is irregularly made;
– application of inappropriate type of cooling liquid.