What are the effects of water entering car exhaust?

1 Answers
ArianaAnn
07/29/25 7:03pm
Water entering the exhaust pipe can lead to serious consequences such as water entering the engine. If only the exhaust pipe has water, it is crucial to remove the accumulated water as soon as possible to prevent impurities in the water from clogging the catalytic converter or damaging the oxygen sensor. To drain the water, simply press the accelerator to expel the water through the exhaust. Specific effects: Water in the exhaust pipe may cause exhaust blockage. Poor exhaust flow can result in the engine stalling, but in this case, the engine may not necessarily have water inside—it's just what is commonly referred to as being "choked out." There's no need to worry in such situations; once the water drains out, the engine can be restarted. Usage precautions: Since water is far less compressible than oil, if a certain amount of water enters the cylinder under high pressure, it can easily break the engine's connecting rod or even puncture the piston. Water can also mix with the engine oil, quickly rendering it ineffective, ultimately leading to engine cylinder scuffing. In such cases, the engine is practically no different from being scrapped.
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