* Low Coolant: This is the most common cause. If the coolant level is low, the engine overheats because there isn't enough fluid to absorb and dissipate heat. Low coolant also means less fluid circulating through the heater core, resulting in cold air. Check your coolant reservoir and radiator.
* Coolant Leak: A leak in the radiator, hoses, water pump, or engine block will cause low coolant and lead to overheating and cold heater air. Look for puddles under the car, and inspect hoses for cracks or damage.
* Water Pump Failure: The water pump circulates coolant. If it fails, coolant won't flow properly, leading to overheating and a cold heater.
* Thermostat Stuck Closed: The thermostat regulates coolant flow. If it's stuck closed, coolant won't circulate properly, causing overheating and cold heater air.
* Radiator Fan Issues: If the radiator fan isn't working, the engine can overheat, even with sufficient coolant.
* Clogged Heater Core: The heater core is a small radiator that heats the air inside the cabin. If it's clogged with debris or rust, it won't heat the air effectively.
* Heater Control Valve Problem: The valve controls the flow of coolant to the heater core. If it's malfunctioning, it might prevent hot coolant from reaching the core.
* Faulty Blend Door Actuator: This is a motor that controls the mix of hot and cold air. A malfunctioning actuator could prevent hot air from entering the cabin even if the heater core is functioning.
* Air in the Cooling System: Air pockets can hinder proper coolant circulation.
It's crucial to address overheating immediately. Continuing to drive with an overheating engine can cause severe and expensive damage. Have your Camaro inspected by a qualified mechanic as soon as possible to diagnose the specific problem and get it fixed. Attempting to fix these issues yourself without proper knowledge could be dangerous.
