Why Does the Exhaust Pipe Spray Water?

[MacArabella]

During the operation of a car engine, it is normal for the exhaust pipe to occasionally expel water, which is a common physical phenomenon. Here is an introduction to the related knowledge about exhaust pipe water spraying: 1. Principle: After gasoline combustion, the exhaust pipe mainly emits carbon dioxide and water. Due to the high temperature of the engine, water initially appears as water vapor. When this vapor encounters the cold external air, it condenses into small water droplets, resulting in water spraying. 2. Precautions: Excessive water in the exhaust pipe can damage the oxygen sensor inside the catalytic converter, leading to inaccurate fuel supply to the engine and affecting the vehicle's performance. Additionally, prolonged accumulation of water droplets in the exhaust pipe can accelerate pipe corrosion.