What to Do When the Car Won't Start After Driving Through Water?
2 Answers
After driving through water, do not attempt to start the car again. Immediately call for a tow truck and have the vehicle inspected at a repair shop. Starting the engine while the vehicle is submerged can cause engine damage, which may not be covered by insurance. Possible reasons why the car won't start after water exposure: 1. Check the spark plugs: Spark plugs are crucial to the car's ignition system, which in turn is essential for the engine's operation. The performance of the spark plugs directly affects the vehicle's overall performance and efficiency. 2. Dead battery: Symptoms include the starter motor turning but not fast enough (lack of power), or the starter motor making a clicking sound without turning. Cold winter temperatures or leaving electrical devices on can prevent the car from starting, especially if the vehicle is frequently used for short, low-speed trips in winter, causing the battery voltage to drop below the rated value. If this happens, call a service center for assistance, jump-start the car, or temporarily start it, but ensure the battery is recharged at a service center afterward. 3. Fuel flow obstruction: Symptoms include no fuel pressure in the engine's fuel supply line. This often occurs on extremely cold mornings due to long-term fuel line contamination. In very low temperatures, water and debris can mix and block the fuel line, preventing the engine from starting. Emergency solutions: Move the car to a warmer environment, and it may start after a while; or thoroughly clean the fuel system to resolve the issue permanently.
I remember driving through a puddle when my car suddenly stalled and wouldn't start. Experience told me not to rush to restart the engine. First, I quickly pushed the car to a safe spot and turned on the hazard lights to warn other drivers. Then, I checked the air filter box—if it felt damp, it meant water might have entered the engine, which is serious trouble—hydrolock can deform the engine. I also inspected the wiring connectors for any signs of water exposure, as short circuits could affect the electrical system. In such a situation, don’t hesitate—call a tow truck and take the car straight to the repair shop. Mechanics usually need to disassemble the engine to assess the extent of water damage and may have to replace some parts. From now on, I’ll slow down when driving through water and avoid any puddle deeper than half the wheel height—it’s better than wasting money and suffering the consequences. Always remember: safety comes first when driving.
