 You have the morals of an alley cat. Sound from a debate last night. Also of note, finding your car submerged or partially underwater because of a flood can be incredibly stressful. MarketWatch put together tips to take when you have a flooded car. Number one, perhaps most importantly, prevent additional damage. Don't try to start the car until a mechanic has looked at it. If water has entered the cylinders, attempting to turn on the engine can cause significant damage.