What Causes Small Bubbles in the Radiator and Constant Water Loss?

[OOlivia]

Radiator water loss can be attributed to the following reasons: 1. Hose issues: Leaks at hose connections or the hose itself, requiring replacement or reinforced sealing; 2. Cylinder block problems: Cracks in the cylinder block, or a loose/damaged cylinder head gasket causing coolant leakage; 3. Cooling system issues: Damaged seals or sand holes in the oil cooler leading to coolant mixing. After the radiator boils over, poor engine cooling and excessive temperature cause component expansion, reducing clearance between parts. Additionally, high temperatures lower oil viscosity, accelerating part wear. If not addressed promptly, severe engine damage or mechanical failure may occur.