Why does water enter the engine?

[IsabelleRose]

1. Human-induced issues: Under normal circumstances, pay attention to wading. The water depth should not exceed the exhaust pipe, and the vehicle should slow down when wading for safety. 2. Engine cylinder gasket damage: This is a very dangerous situation. Vehicle owners must regularly inspect their vehicles as coolant may inevitably flow into the lubrication system, which can easily cause severe engine damage. 3. Negligence during use: This is also a personal factor. Whether refueling or cleaning the engine, always ensure the engine is turned off. If water enters, do not attempt to start the engine.

[DeEliza]

After driving for so many years, the most common cause of engine water ingress is improper driving. For example, during heavy rain, stubbornly driving through deep puddles can cause water to rush into the air intake, leading to the engine sucking in rainwater, which can easily stall or cause internal rust. Sometimes, parking carelessly is also an issue, especially in older neighborhoods where rising water levels can flood the car, making engine compartment water ingress a common occurrence. Another point is driving too aggressively through small streams, splashing water high enough to enter the exhaust system, causing the engine to get damp. I think this is related to weather conditions, like during typhoon season when many areas experience deep water accumulation—it's essential to check the weather forecast in advance. The key issue is that water ingress can damage engine seals, accelerate internal corrosion, and result in costly repairs. Normally, parking on higher ground, avoiding driving through large bodies of water, and keeping vents clean with a wiper can prevent a lot of trouble.

[DamianLynn]

Many people may not realize that engine water ingress is often caused by design flaws or maintenance oversights. If the intake system isn't properly sealed - due to aging rubber gaskets or improper installation - water can easily seep in. Another common cause is coolant leakage from loose hose connections or cracked radiators, allowing coolant to mix with water and enter the cylinders. As I've heard from mechanics, regular inspection of piping is crucial, especially to reduce risks when driving in rain. Don't forget that some vehicles have poorly designed, low-positioned air intakes that can cause trouble. It's best to develop good habits like cleaning air filters regularly and ensuring the exhaust system is airtight. If water does enter, never attempt to start the engine - have it towed to professionals immediately to prevent further damage. Remember, diligent maintenance significantly extends engine lifespan.

[HeidiRose]

From a safety perspective, engine water ingress is highly dangerous, primarily caused by improper driving through water. When water depth exceeds half of the wheel height, do not risk crossing, as water pressure can force rainwater into the engine compartment. Flooding can also submerge vehicles, leading to complete engine failure after water immersion. Another risk arises from traffic accidents damaging the radiator or chassis, allowing rapid water entry. I recommend checking routes before rainy season trips to avoid low-lying areas and keeping life-saving tools in the vehicle. If water enters, immediately turn off the engine and call insurance for assistance—never attempt to restart, as it can destroy the engine. Insurance companies also scrutinize this; without regular maintenance records, claims may face difficulties. These preventive measures can save lives and reduce hassle.