- Low Freon level: If the Freon level in your Cobalt's air conditioning system is too low, it can cause the system to freeze up and stall the engine. Check the Freon level and add more if necessary.
- Faulty compressor: The compressor is the heart of the air conditioning system and is responsible for circulating the refrigerant. If the compressor is faulty, it can cause the system to stall the engine. Have your mechanic check the compressor if you are experiencing this issue.
- Bad expansion valve: The expansion valve controls the flow of refrigerant into the evaporator coil. If the expansion valve is bad, it can cause the system to flood with refrigerant and stall the engine. Have your mechanic check the expansion valve if you are having trouble with your Cobalt's AC system.
- Dirty condenser: The condenser is responsible for dissipating heat from the refrigerant. If the condenser is dirty, it can't do its job properly, which can lead to the system freezing up and stalling the engine. Clean the condenser if it is dirty.
- Faulty electrical connection: A loose or damaged electrical connection can cause the AC system to malfunction and stall the engine. Check the electrical connections between the AC system and the battery.
