Roewe 750 engine trembled and smoke billowed.

If there is black smoke: that is, the diesel fuel is not fully burned, it may be that there is something wrong with the high-pressure oil pump and nozzle, and efficient nozzles and pumps are needed; It is also possible that the style is too dirty and needs to be changed; Too early fire will also emit black smoke, adjust the ignition timing.

If there is white smoke: the problem may be big. If your car passes through the water, the connecting rod will bend when the engine enters the water, which will also cause this phenomenon.

The engine needs to change the connecting rod; There is also water in diesel, which will also cause this phenomenon, and the water in diesel will be discharged; If the ignition time is too late, white smoke will appear. Adjust the ignition timing.

If there is blue smoke: this is the phenomenon of burning oil. The engine cylinder liner and piston ring are worn, and the engine needs to replace them, that is, overhaul or medium repair.