Hyundai Santa Fe engine light on with jerking motion issue on Hyundai Santa Fe

Some Hyundai Santa Fe owners report experiencing issues when the engine light is on, including jerking motions while driving. A flashing Check Engine Light may indicate serious problems, such as a catastrophic misfire that can lead to raw fuel entering the exhaust system, potentially causing damage. A steady Check Engine Light could signal various issues, including a loose gas cap, faulty oxygen sensor, damaged catalytic converter, or cylinder misfire. Additionally, problems with the EVAP system, vacuum leaks, or worn oxygen sensors may also trigger the Check Engine Light. Common causes of jerking motions include dirty fuel injectors, worn-out spark plugs, a malfunctioning O2 sensor, or fuel pump issues. It is advisable for owners experiencing these symptoms to seek professional inspection to diagnose and resolve the underlying problems.