After my appointment I stopped at McDonalds to get some food and while idling after paying it started making that sound again. 음식 주문 창구에 있던 직원이 몸을 숙이고 보닛을 쳐다보길래 저는 차가 시끄럽게 죽어가는 것 같다고 대답했습니다. He laughed and handed me the food.