Hyundai Elantra check engine light issue following oil change with suspected cracked seal on Hyundai Elantra

Some Hyundai Elantra owners report experiencing check engine light issues following an oil change, particularly when a cracked seal is suspected. These problems may stem from mechanical engine failures, such as a failing timing belt, worn piston rings, or a faulty oil pump. Additionally, an air leak in the intake system can occur if hoses and connectors are dislodged or damaged during the oil change, triggering the check engine light. Other potential causes include an improperly seated dipstick, a backward oil fill cap, low oil pressure, excessive oil, incorrect oil type, or a sensor that did not reset. It is essential for owners to seek professional assistance to diagnose and resolve these issues promptly to prevent further engine damage and ensure the vehicle operates smoothly.