How High Water Level Affects Vehicles
2 Answers
Theoretically, as long as water does not submerge the air intake, it won't affect the engine. However, there are too many unpredictable factors. When other vehicles pass by, waves may splash into the air intake. Additionally, it's crucial to pass through slowly since underwater conditions are unknown. Also, be mindful of stalling while wading through water and never attempt to restart the engine immediately. Below are relevant details: 1. Exhaust pipe height: This represents the safe wading depth. In fact, the pressure generated by engine exhaust is substantial enough to expel water that backflows into the exhaust pipe. Maintaining sufficient and stable power can prevent water from entering the exhaust pipe, ensuring safe passage through waterlogged sections. 2. Half-wheel height: This may lead to water entering the vehicle interior. Modern cars are equipped with numerous electronic components and sensors, making water infiltration particularly troublesome. 3. Air intake height: This is the maximum wading limit. The air intake height is the most critical indicator for vehicle wading depth because once water enters the intake, it can cause engine stalling. In severe cases, water may be sucked into the engine, resulting in permanent damage.
The water level height has a significant impact on vehicles. With years of repair experience, I've seen all kinds of flooding scenarios: when the water level exceeds half of the wheel height, approximately 15 cm, it can enter through the exhaust system, causing the engine to stall or even hydrolock, leading to repairs costing thousands or tens of thousands. If the water rises to the bottom of the door, about 30 cm deep, water will flood the cabin, damaging the interior, carpets, and audio systems, along with unpleasant moldy odors and mildew growth. Should the water level surpass the hood, exceeding 50 cm, the entire vehicle may float or sink, with the engine and transmission rendered useless and the electronic control units short-circuited, making repairs impossible. Flood seasons are particularly dangerous, as water pressure can prevent doors from opening, complicating escape. Regular maintenance should include checking the chassis seals, and when wading through water, remember the wheel center is the maximum safe height—never force through deep water areas; safety comes first.
