Car engine cooling system Ford Fiesta 4

General information about the cooling system
Fig. 6.1. Engine cooling system diagram: 1 – expansion tank; 2 – heater radiator; 3 – radiator fan; 4 – thermostat; 5 – water pump; 6 – engine The car engine operates in...

Cooling liquid
In the cooling system, a mixture of antifreeze and anticorrosive agent with water provides the necessary cooling of the Fiesta engine. That is why they talk about...

Checking the tightness of the cooling system
20,000 km, 12 months SEQUENCE OF WORKS 1. Check the condition and reliability of the cooling system hoses on the radiator and engine, as well as the hoses going to the...

Checking the level and adding coolant
constant control SEQUENCE OF WORKS 1. Periodically check the coolant level in the expansion tank on a cold engine, since there is no pressure in the cooling system and...

Replacing the coolant
Ford does not recommend routine coolant replacement. If coolant needs to be replaced, follow these steps:. every 24 months SEQUENCE OF WORKS 1. To relieve pressure in...

Protecting the Fiesta engine from frost down to -30°C
Fig. 6.5. Measuring the density of the coolant with a hydrometer with a float In mid-latitudes, the coolant protects the car engine from frost down to -30°C based on...

Removing and checking the thermostat
The thermostat is removed only when the engine is cold. Removing the thermostat is not particularly difficult, but if you are confident in your abilities, leave this...

Radiator fan
A faulty radiator fan can cause the coolant to overheat, of course, only if the engine is idling for a long time, driving intermittently at the end of the work day or in...

Troubleshooting the Radiator Fan
SEQUENCE OF WORKS 1. First of all, check the condition of the fuses. 2. If the fuses are OK, disconnect the connector from the temperature sensor. Fig. 6.9. Using a...

Removing the radiator fan
SEQUENCE OF WORKS 1. Raise the front of the vehicle. Disconnect the negative battery cable (terminal "31") and the connector from the radiator fan motor. Remove the...

Removing the radiator
SEQUENCE OF WORKS 1. Raise the front of the vehicle. Disconnect the negative battery cable (terminal "31") and the connector from the radiator fan motor. Remove the...

Replacing cooling system hoses
If a crack appears on a coolant hose in your Fiesta while driving, temporarily wrap the damaged area with adhesive tape. To be on the safe side, unscrew the expansion...

Possible malfunctions of the cooling system
Possible malfunctions of the cooling system, their causes and methods of elimination

Possible thermostat malfunctions and their causes
Possible thermostat malfunctions and their causes