Is It Serious If Water Submerges the Exhaust Pipe While Driving?

[MacDelaney]

It is not serious if water submerges the exhaust pipe while driving. You can push the car out of the waterlogged road, and it will function normally. Reasons why it can still function normally: The exhaust system generally consists of the exhaust manifold (header), exhaust pipe, flexible connection (bellows), catalytic converter, and muffler. The exhaust system is almost horizontally arranged along the chassis, but the exhaust manifold is connected to the engine and is positioned higher vertically compared to other components of the exhaust system. When water just submerges the exhaust pipe, it cannot enter the engine cylinders. After the water recedes, the water level in the exhaust pipe will definitely drop again, meaning the farther from the exhaust outlet, the lower the water level. At this point, starting the car will not cause water in the exhaust pipe to be sucked back into the engine. Starting method: Ignite and start the car, but keep it idling without pressing the accelerator. At this time, a lot of water will be expelled from the exhaust pipe until it stops dripping. This process won't take long, about 8 minutes.