Can the engine run 500 kilometers after being flooded?

[LeoFitz]

No, do not restart the car after the engine is flooded. Water entering the engine is absolutely fatal internal damage to the car's engine. Once the engine is flooded, at best, the spark plugs cannot ignite, causing the engine to stall directly, and at worst, it can lead to cylinder explosion. After the vehicle wades through water: Water enters the cylinder through the intake manifold. Due to the incompressibility of water, the piston stroke will become shorter, causing the engine connecting rod to bend or break. Under extreme conditions, the broken connecting rod can fly out and penetrate the cylinder block. Reasons for the car stalling in water: The reason the car stalls in water is that the distributor cap gets wet, causing the distributor to lose its normal ignition function. The engine air filter element becomes soaked, leading to increased intake resistance and water entering the combustion chamber, making the spark plugs unable to ignite.

[DelKevin]

I've seen many cars suffer major issues after water ingress, and this is no minor trouble. If the engine sucks in water, even a small amount, driving 500 kilometers would be nothing short of a fantasy. Water can enter the cylinders, locking the pistons in place. Upon starting, the connecting rods may bend or even punch through the cylinder walls. These damages are irreversible. From my experience in car repairs, forcing the engine to run just a kilometer or two can total it, let alone long-distance driving. The costs are staggering too—repairs or a new engine can run into tens of thousands, and insurance might not cover it. So my advice: shut off the engine immediately, avoid ignition, and call a tow truck to take it to a repair shop. Always steer clear of puddles while driving, especially during the rainy season—safety should always come first.

[MacCali]

As a frequent driver, I must say it's completely impossible to drive 500 kilometers after water enters the engine. Water in the cylinders will cause the ignition system to fail, potentially resulting in loud noises and vibrations upon startup, leading directly to engine seizure. Forget about 500 kilometers—driving even a few meters is risky, such as suddenly stalling on the highway and causing an accident. I believe the most practical approach is to stop immediately and inspect the vehicle, avoiding any attempts to run the engine, as damage can escalate quickly. Repair costs can be steep, often running into thousands, not to mention the time and effort involved. For prevention, it's wise to avoid flooded areas after rain and seek professional help if water ingress occurs. Taking good care of your car ensures long-term reliability.

[Carole]

With my auto repair background, let me be blunt: driving 500 km after water enters the engine? Dream on. Water in the cylinders causes hydro-lock, bending connecting rods and pistons during compression. Forcing it to run even a short distance will total the engine. Towing after stalling is the only option. Prevention beats repair every time.