Dongfeng Tianlong Renault engine 385 engine has abnormal noise and jitter, and it is not cylinder.

Engine carbon deposit. The most common cause of serious engine carbon deposition leading to automobile jitter is that the throttle valve is too sticky or the nozzle has too much carbon deposition. Dongfeng Tianlong is a new generation of heavy truck platform launched by Dongfeng Commercial Vehicle Company in Shiyan City. Through international cooperation, Dongfeng Tianlong has integrated the advanced technologies in today's world, and achieved a large number of independent innovations in the research and development process, which has comprehensively improved the performance of various systems of the vehicle, especially in terms of technology, safety, economy, reliability and comfort.