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Radiator caps are designed to seal your cooling system, allowing it to pressurize and raise the boiling point of the coolant, which allows your coolant to absorb more heat from the hot engine.

If your vehicles radiator cap fails, it could lead to catastrophic engine damage.

Signs of Radiator Cap failure:
- Overheating
- Leaking coolant
- Overflowing coolant reservoir
- Radiator hose collapses
- Air inside the cooling system