Hyundai Sonata engine smoking and running rough with multiple recall issues and transmission whining on Hyundai Sonata

Some Hyundai Sonata owners report experiencing engine smoking and rough running, which may be caused by overheating, burning oil, or a melting wiring harness. Symptoms such as rough idling, decreased performance, and smoke from the exhaust can indicate serious engine issues, especially if accompanied by an oil warning light or engine knocking. Additionally, owners of Sonata models from 2011 to 2016 report multiple recall problems, including engine failure, excessive oil consumption, and stalling due to manufacturing defects or faulty components. These issues often require checking oil and coolant levels, and inspecting for oil leaks in gaskets and seals. Furthermore, some owners have reported transmission whining, along with shifting problems and a lack of smoothness, which may stem from failed speed sensors leading to harsh shifting and slipping. It is advisable for owners to address these issues promptly to prevent further damage and ensure the safety and performance of their Hyundai Sonata.