What Causes White Smoke from the Exhaust Pipe When Accelerating Hard?
1 Answers
Reasons for white smoke from the exhaust pipe after hard acceleration are as follows: 1. Engine temperature too low: Some diesel fuel turns into oil vapor without burning and is discharged from the exhaust pipe with the exhaust gas, causing white smoke. 2. Water in the fuel system: If there is water in the fuel or combustion chamber, it is heated into steam by the heat released during combustion in the cylinder and discharged from the exhaust pipe, forming white smoke. 3. Delayed fuel injection: Due to late injection timing, the cylinder temperature has already dropped when fuel is injected, causing some diesel fuel to turn into oil vapor without burning, resulting in white smoke. 4. 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.