- Coolant Leak:-
A leak in the cooling system can cause coolant to leak into the ventilation system, resulting in steam or mist blowing through the vents.
- Head gasket failure:-
A breach in the head gasket can allow steam from the engine coolant to enter the ventilation system. This condition usually manifests with additional symptoms such as white smoke from exhaust, low coolant levels, and potential power loss.
- Condensation:-
In high humidity conditions or when significant temperature differences exist between inside and outside the vehicle, condensation may accumulate in the ventilation system. When this accumulated water is heated, it may turn into steam and exit via the vents.
- Blocked Heater Core:-
A clogged or blocked heater core may impede proper coolant circulation, leading to overheating of the coolant. This can generate steam that flows into the ventilation system.
- Overflowing coolant:-
Overfilling coolant reservoir leads to excessive coolant that exceeds the capacity of the system. This excess can spill over into the ventilation system, causing steam.
Diagnosis requires determining the root cause of steam emanating from the vents, as it can signal significant issues like coolant leaks or potential engine problems.
