What Causes Water Spray from the Accord's Exhaust Pipe?
2 Answers
Reason for water spray from the Accord's exhaust pipe: After the gasoline in the car is fully combusted, it generates water vapor and condensate, leading to excessive exhaust pressure. Water spray from the car's exhaust pipe is a normal phenomenon. If you are concerned about this issue, you can first check whether the antifreeze in the coolant reservoir is insufficient. If the antifreeze level is normal, it indicates that the vehicle is in good condition. The Accord is a mid-size car produced by GAC Honda, with dimensions of 4893 mm in length, 1862 mm in width, and 1449 mm in height, and a wheelbase of 2830 mm. The Accord is equipped with a turbocharged engine that delivers a maximum horsepower of 194 hp, a maximum power output of 143 kW, and a peak torque of 260 Nm.
This phenomenon is particularly interesting! My 10th-gen Accord also emits white puffs of vapor with water droplets from the exhaust pipe in winter, and I've specifically researched the principle. When the engine burns gasoline, it generates water vapor and carbon dioxide. The high-temperature exhaust gas instantly condenses into liquid water when passing through the cold exhaust pipe. Especially during cold starts, when the exhaust system temperature is low, water vapor condensation is more noticeable. The exhaust tailpipe is specially designed with drainage holes to discharge this condensate, preventing corrosion of the metal piping. As long as the discharged water is clear, the engine shows no abnormal vibrations, and the engine oil isn't emulsified, it's completely normal. In fact, it indicates your engine has high combustion efficiency!
