What Causes White Smoke from the Engine Hood While the Water Temperature Gauge is Normal?

[AmyFitz]

White smoke from the engine hood while the water temperature gauge is normal can be caused by: 1. Insufficient engine temperature, where the fuel-air mixture injected into the cylinder fails to burn completely, resulting in white smoke from the exhaust pipe; 2. Presence of water in the diesel fuel, which directly affects the normal combustion of the mixture. The main component of the car engine is the cylinder, which serves as the power source of the entire vehicle. The cylinder includes the cylinder block, intake port, fuel injection port, exhaust port, spark plug, and piston. Gasoline and air are injected into the cylinder through the intake port and fuel injection port, thoroughly mixing inside. When the spark plug ignites the mixture, it undergoes a violent explosion and combustion, driving the piston downward and generating power.