Hyundai Sonata overheating issue with suspected stuck thermostat and warped heads on Hyundai Sonata

Some Hyundai Sonata owners report experiencing overheating issues potentially caused by a stuck thermostat and warped heads. Common causes of overheating include coolant leaks, thermostat failures, and problems within the cooling system, such as a faulty water pump or blocked hoses. Symptoms of a faulty thermostat may manifest as poor fuel economy, lack of power, and engine overheating. Additionally, warped heads can occur due to severe overheating, leading to significant engine problems like a blown head gasket or cracked head. Owners are advised to replace a suspected stuck thermostat promptly to avoid further engine heating and performance issues, while addressing warped heads may necessitate professional inspection and repair to prevent costly engine damage.