Some Hyundai Santa Fe owners report experiencing difficulties when the engine won't turn over, despite the lights working. This issue may often stem from battery concerns, as a dead or weak battery is a common culprit for preventing the engine from starting. Additionally, some owners find that a malfunctioning starter motor can lead to no engine crank, resulting in either silence or a clicking noise when attempting to start the vehicle. Defective solenoid contacts may also cause a clicking sound without any change in the lights, indicating potential solenoid problems. Furthermore, corrosion on battery terminals or bad ground connections can contribute to these electrical issues. To address these concerns, owners are advised to check for battery weakness, inspect the starter motor, ensure solenoid contacts are functioning properly, and verify the cleanliness of all electrical connections. If these checks do not resolve the issue, consulting a professional mechanic for further diagnosis and repair is recommended.

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.