Drive Fast or Slow Through Water?
4 Answers
When driving through water, it is advisable to proceed slowly. A water surface that is originally very calm can create waves when a car passes through quickly due to the power. If the waves enter the engine through the intake, it can easily cause the car to stall or fail to start normally. Below are detailed explanations: 1. Explanation one: If the water level exceeds half of the tire, the owner should remove the key, close the windows tightly to prevent water from entering the car, and call for rescue as soon as possible. 2. Explanation two: When driving at night in rainy conditions, to prevent the headlights from creating a dazzling light curtain, turn off the headlights and use fog lights instead, while further reducing the speed.
Fast or slow through water? I've got experience with this! Last time during a heavy rain, I tried both ways: speeding through caused the wheels to skid, nearly hitting the guardrail, and water splashed into the engine compartment through the hood gaps. Switching to a slow approach in first gear was much steadier. The key is that driving slowly allows you to see any potholes or rocks underwater and prevents water from being sucked into the exhaust pipe. If the water depth exceeds half of the tire height, the smartest move is to turn around and find another route. After all, repairing water-damaged engine costs thousands, which is way more important than being late.
As a veteran long-distance driver, I firmly stand with the slow-water-crossing camp. Speeding through water is like jumping off a cliff with your eyes closed: the splashing water can flood the intake and cause the engine to stall, while wet brake pads can double the braking distance. Even more terrifying are the displaced manhole covers hidden beneath the water—hitting one at 40 mph can instantly blow out a tire. My habit is to ease off the throttle 200 meters in advance, shift to a lower gear, and maintain a steady speed. Upon exiting the water, immediately tap the brakes three times to dry off the water on the brake discs for safety.
After a decade in auto repair, I've witnessed too many tragedies from speeding through water. Last week, an SUV was towed in - the owner hit a puddle at 50 mph, causing hydro-lock that bent the connecting rods. At high speeds, tires act like shovels, flinging water into the undercarriage and frying electrical components. Conversely, slow speeds keep water below hub level, protecting vital systems. Pro tip: If you hear brake squealing or detect musty AC smells post-flood, it's likely inadequate slow-speed technique - get it inspected immediately.
