Can a Car Start After Being Submerged in Water and the Water Recedes?
2 Answers
After a car has been submerged in water and the water recedes, it should not be started. Attempting to start a submerged car can cause severe damage to the engine, potentially leading to complete engine failure. In such cases, it is necessary to call a tow truck to transport the vehicle to a repair shop for a thorough inspection of the damage. Below are the steps to handle a water-damaged car: 1. For cars covered by comprehensive insurance: Report the incident to the insurance company. An insurance adjuster will arrive to assess the damage and determine whether the car should be repaired or compensated. The vehicle should be towed out of the water as soon as possible. Note: Do not attempt to power on or start the car before the insurance adjuster arrives. 2. For cars without comprehensive insurance: (1) If the water level did not exceed the top of the tires: If most of the car was submerged only up to the bumper, the majority of the electrical circuits are likely unaffected. In this case, inspect and repair the circuits at the bottom of the vehicle. (2) If the water level exceeded the top of the tires: The electrical circuits, engine, and other components are likely submerged. Necessary actions include replacing the engine oil, oil filter, transmission fluid, and airbag control module; draining water from the intake manifold; cleaning the engine surface, fuel injectors, and throttle body; removing and drying all seats and carpets; and inspecting and repairing engine wiring and performing engine computer diagnostics.
I've experienced the nightmare of having my car flooded. Never rush to start the engine after the water recedes, or you could really damage your vehicle. That day during a heavy rainstorm, water rose to the chassis level. As soon as the water subsided, I anxiously tried to start the car, only to hear a dull "thud" from the engine. When towed for repairs, I learned water had caused piston seizure - costing over 2,000 RMB in repairs. Now I know better: always check if the air filter is soaked, whether there's residual water in the exhaust pipe, and inspect electrical connectors for short circuit signs. The safest approach is not to start the engine at all, but directly call a tow truck to take it to a proper repair shop for inspection - penny wise and pound foolish otherwise. For daily parking, always choose higher ground to avoid flood risks. Safety first.
