Driving frustration of JAC Ruifeng 17 diesel m4.

What you are asking is how the driving frustration of JAC Ruifeng 17 diesel m4 came about? There is a lot of carbon deposit.

Throttle, fuel injector and air intake are prone to carbon deposition, and too much carbon deposition will affect driving and cause frustration.

The setback problem needs to be checked and dealt with in the store, and repaired in time to avoid more security risks.