Suzuki Swift Radiator, Thermostat, Temperature Sensor & Pressure Cap Replacement


Suzuki Swift facing overheating issues and we found out that the cooling system was badly damaged

Problem: Radiator was cracked and leaking badly hence we got a new one to replace it.

What is a radiator: The function of a radiator is to transfer the heat of the coolant to the atmosphere or to reduce the temperature of the coolant. The coolant can be cooled down in two ways. One is to use a radiator fan and the other is to use the wind from the atmosphere when the car is moving at high speed. The coolant will then be used to cool down the other parts of the car such as the engine block and head.

Problem: Thermostat was unable to open at high temperatures

What is a thermostat: The thermostat will be closed until the coolant reaches a high temperature. This is to facilitate the warming up of the engine as the water temperature increases drastically in the water jackets of the engine block. The coolant will be allowed to travel into the radiator once the thermostat opens.

Problem: Coolant temperature sensor not working

What is a coolant temperature sensor: It senses the temperature of the coolant, controlling the functionality of the thermostat with the help of the ECU (Engine control unit). The temperature sensor also aid in the ignition system by aiding the ECU to adjust the air-fuel mixture. A cold engine requires a richer mix while a engine running at operating temperature needs a lean mix.

Problem: Pressure cap no longer provides pressure for the coolant

What is a radiator cap for: A pressure cap is to increase the pressure in the radiator so that the boiling point of the coolant is increased. This will allow the coolant to not evaporate despite the car running at above boiling temperatures.