Why is water dripping from the exhaust pipe when the car's air conditioning is off?

[DeKinsley]

Water dripping from the exhaust pipe when the car's air conditioning is off is due to the formation of water vapor and carbon dioxide after complete combustion of gasoline. The water vapor condenses into water droplets as it passes through the metal exhaust pipe and is discharged from the exhaust pipe. Water dripping from the exhaust pipe is a normal phenomenon, indicating that the engine is working properly and the combustion is sufficient, with good atomization effect in the engine. The following is an introduction to the exhaust pipe: 1. Function: The exhaust pipe includes the front exhaust pipe and the rear exhaust pipe, whose functions are to reduce vibration and noise, and to extend the life of the exhaust muffler system. 2. Preventing water ingress: The exhaust pipe is often exposed. When driving in the rain or going to a car wash, care should be taken to prevent water from entering the exhaust pipe and causing rust, which can affect the use of the exhaust pipe.