Hyundai Santa Fe intermittent cylinder misfires with rough acceleration and poor fuel economy, primarily affecting cylinder 4 on Hyundai Santa Fe

Some Hyundai Santa Fe owners report experiencing intermittent cylinder misfires, particularly affecting cylinder 4, which can lead to symptoms such as rough acceleration and poor fuel economy. These misfires may cause the engine to run roughly, resulting in reduced power during acceleration. Common signs include rough idling, slow acceleration, and a flickering check engine light. Owners have identified ignition system issues, fuel delivery problems, and engine mechanical errors as frequent causes of these misfires. Ignoring a misfire, especially in cylinder 4, can result in more significant engine damage over time. It is crucial for owners to address these issues promptly and seek professional diagnosis to identify the root cause and implement appropriate corrective measures.