Li Xia engine is noisy.

There may be many reasons for the loud engine noise. According to my experience in driving Li Xia's car, one is to check and clean the throttle; The second is to see if there is any problem with the spark plug and belt timing; The third is to check whether there are problems such as high water temperature and fans. It's best to go to the repair shop and ask the master to help check and eliminate the reasons.