Can a Flooded Car Engine Still Be Used?

[MicahAnn]

Car engines cannot be used after being flooded. Here is an introduction to flooded vehicles: 1. Introduction to flooded vehicles: A flooded vehicle refers to a car that has been submerged in water, typically meaning the engine and transmission have been soaked, with the water level exceeding the wheels and body seats. These are vehicles where the bottom components have been in prolonged contact with water. Such vehicles pose significant risks, as the electrical circuits are prone to short circuits and fires. 2. Hazards of flooded vehicles: (1) Components are easily damaged. (2) The engine may suddenly stall. (3) Airbags may fail to deploy in critical moments or deploy without reason. (4) It can easily lead to rusting of body components, shortening the vehicle's lifespan and reducing safety performance.

[GemmaLynn]

The other day when I heard about an engine getting flooded, I think the key point is the extent of water exposure. If the water only reaches the bottom of the car without entering the engine interior, it's not a big issue. However, once water flows into the cylinders through the intake, the piston can get stuck when starting, and even the connecting rods may break, leading to a completely ruined engine. I've seen a friend's car after it was flooded—it was directly towed for disassembly and inspection, revealing internal rust, with repair costs exceeding that of a new engine. The crucial step is to never attempt to start the vehicle; immediately cut off the power and have it professionally towed to a repair shop for a thorough inspection. Always avoid parking in low-lying areas, and it's worth installing waterproof kits just in case.

[LillianLee]

As an experienced driver, I can say whether a waterlogged car's engine can still function depends on luck. In mild cases, simply cleaning and drying may suffice, but most often, water entering the pistons or electrical systems can cause short circuits and corrosion, leading to a loud 'bang' upon startup that damages components. I remember once during heavy rain when my car got flooded, the mechanic said internal parts had rusted and needed replacement. Insurance is another concern, as some policies don't cover water damage. If this happens, stop the car immediately, don't attempt to move it, and contact a tow truck and professional repair services right away—safety first, don't take risks.

[LaIris]

Over the years of repairing cars, I've frequently dealt with water-damaged engines. When water enters the engine, it can cause hydro lock, leading to piston and connecting rod deformation or even bursting. For minor water exposure, cleaning the circuits may suffice. However, if the water level exceeds the intake tract, the repair costs can be very high, sometimes necessitating a complete replacement. It's advised that owners immediately turn off the engine and disconnect the battery upon discovering water damage, then tow the vehicle to a repair shop for a cylinder pressure test to assess internal damage. Never attempt to start the engine yourself to avoid exacerbating the fault.