Why is water coming out of a sedan's exhaust pipe?

[Leilani]

The reasons for water coming out of a sedan's exhaust pipe are: 1. The water discharged from the car's exhaust pipe is accumulated water from high-speed engine operation; 2. The tailpipe at the rear of the vehicle is actually a main muffler, whose primary function is to reduce engine exhaust noise and minimize environmental pollution from vehicle noise. Since the main muffler is located at the rear of the car where temperatures are relatively low, its multi-chamber structure easily accumulates water; 3. During high-speed engine operation, the accumulated water is expelled by airflow, resulting in the common water spray phenomenon. Vehicles frequently driven at low speeds on congested roads, especially in winter, tend to experience slightly more severe water accumulation in the muffler.