You know, in the actual driving process, as long as the engine does not shut down, the exhaust pipe will continuously discharge exhaust gas, and the exhaust will prevent ponding from entering the exhaust pipe, so you should worry about the engine.
The real reason why the car stalled after wading
车辆涉水怕的不是排气管进水，因为根据气压的原理，水通过排气管灌入发动机是不大可能的，真 正怕进水的是进气口。我们知道，发动机运转是靠油气混口后进入气缸燃烧来驱动车辆的。然而，当油气混合中混入水以后，就会导致车辆因为“呛到水”而熄火，这才是真 正的主因。
It is not the exhaust pipe that the vehicle is afraid of water when wading, because according to the principle of air pressure, it is impossible for water to pour into the engine through the exhaust pipe. The real fear of water is the air inlet. We know that the engine runs by mixing oil and gas into the cylinder for combustion to drive the vehicle. However, when water is mixed into the oil-gas mixture, the vehicle will stall because of "choking water", which is the real main reason.
Can the water in the exhaust pipe ignite
This problem is ambiguous. If your car suddenly stalls in the process of wading, it is likely that the water in the engine inlet causes the engine to water in and stall. What you think is that the water in the exhaust pipe causes the engine to stall is impossible, that is to say, you can't start a fire at this time. However, you will certainly suffer heavy damage, ranging from overhaul to scrapping, and there is no insurance to reimburse, Just think about it.