What Causes White Smoke and Shaking from the Engine?

[BryceRose]

Reasons for white smoke and shaking from the engine: excessively low engine temperature, water in the fuel supply system, delayed fuel injection timing, poor fuel injector atomization, etc. Excessively low engine temperature: Some diesel fuel turns into oil vapor without burning and is discharged from the exhaust pipe along with the exhaust gas, resulting in white smoke. Water in the fuel supply system: If there is water in the fuel or combustion chamber, the water is heated by the combustion heat in the cylinder and turns into steam, which is discharged from the exhaust pipe, forming white smoke. Poor fuel injector atomization: Poor atomization leads to incomplete combustion of diesel fuel, which mixes with the high-temperature exhaust gas from normally operating cylinders in the exhaust pipe, causing white smoke.