What Causes Coolant Leakage?

[PeterMarie]

Reasons for coolant leakage: Loose sealing at the connection between the antifreeze tank and radiator, aging and cracking of rubber hoses, rust penetration in the radiator, or water pipe leakage. Inspect the coolant lines for leaks, especially at the upper and lower radiator hose connections, the water outlet flange and hose connections on the cylinder head, the heater core connections, the water temperature sensor connection, and other pipe connections. Applying sealant at the connections, reinstalling the hoses, and replacing the clamps can resolve the issue. Damage to coolant system components can lead to coolant leaks and high engine temperatures. Common faulty parts include the radiator, heater core, water pump, water outlet flange, and coolant tank (cap). Solution: Replace the damaged components to fix the problem. The radiator can be welded for repair depending on the situation.