* Overheating: Antifreeze (coolant) is crucial for carrying heat away from the engine block. Low levels mean less coolant to absorb and dissipate heat, leading to overheating. This can cause damage to the engine, head gasket, and other components.
* Inefficient Heat Transfer: The heating system in your car uses the engine's coolant to warm the cabin. Low coolant levels reduce the amount of heat available to the heater core, resulting in weak or no heat.
* Air in the System: A low coolant level can increase the chances of air pockets forming in the cooling system. Air doesn't transfer heat as effectively as coolant, further impairing both engine cooling and cabin heating.
In short, if your 2005 Chevy Impala has heating problems and low antifreeze, it's a serious issue that needs immediate attention to prevent more extensive damage. You should add coolant (the correct type for your car – check your owner's manual) and have the cooling system checked for leaks by a mechanic.
