- The radiator cap is designed to maintain a specific pressure in the cooling system. This pressure helps to raise the boiling point of the coolant and prevents it from boiling over. If the cap is loose, the pressure in the system will be lower, which will cause the coolant to boil at a lower temperature. This can lead to overheating and the loss of coolant through boiling and evaporation.
- A loose radiator cap can also allow air to enter the cooling system. This air can cause the formation of air pockets, which can interfere with the flow of coolant and lead to overheating.
- Additionally, a loose radiator cap can allow dirt and debris to enter the cooling system, which can damage the radiator and other components of the cooling system.
Therefore, it is important to ensure that the cap on your radiator overflow tank is tight and in good condition to maintain the proper pressure in the cooling system and prevent overheating and coolant loss.
