1. Pressure Issues:
- A faulty radiator cap may not be sealing properly, leading to excessive pressure buildup and coolant being forced out of the radiator.
- A clogged or damaged thermostat can prevent the coolant from flowing properly, causing overheating and pressure buildup in the cooling system.
2. Coolant System Component Failure:
- A radiator leak or a cracked/damaged cylinder head gasket can allow air or exhaust gases to enter the cooling system, resulting in overheating and coolant overflow.
- A worn-out water pump or a malfunctioning fan may interfere with the circulation and cooling of the coolant, causing it to overheat.
3. Engine Issues:
- A blown head gasket or a cracked engine block can allow coolant to mix with the engine oil and exhaust gases, leading to coolant system failure and expulsion.
- Cylinder head warpage or a damaged engine block can also result in coolant leaks.
4. Overheating:
- Driving with low coolant levels or in harsh conditions can cause the engine to overheat, resulting in pressure buildup and pushing out the coolant from the radiator.
- A malfunctioning cooling fan or a faulty temperature sensor can fail to regulate engine temperatures, leading to engine overheating and coolant expulsion.
Note:
It is important to inspect the coolant reservoir and radiator for low coolant levels and other potential issues. Overheating can cause severe engine damage, so addressing the problem as soon as possible is crucial. If the issue persists or seems complex, it is recommended to consult a professional mechanic for proper diagnostics and repairs.