It is important to remember that the stalled vehicle should not be forced to start after the engine is flooded, because restart will often cause damage to the engine and no claim can be made.
At this time, the owner should push the vehicle out of the deep water area to ensure that the engine air intake will not inhale any more water and stop in a safe place. Remove the spark plug, cut off the fuel supply system and ignition system artificially, and then use the motor to run the engine, so that the water entering the engine can be discharged smoothly. At the same time, check the oil condition of each system of the vehicle, and replace it in time in case of foaming and turbidity.
After the test, compressed air should be used to clean the electrical connection parts in the engine compartment to prevent the corrosion caused by moisture accumulation in the electrical connection parts. After cleaning, road test the vehicle to ensure that there is no abnormal noise during the engine driving. If there is obvious driving noise, check the engine bearings and rotating parts. However, if the engine does not rotate when starting after removing the spark plug, it means that the engine has been toppled and can only be handled in the maintenance station.
Consequences of engine water ingress
After the vehicle wades into the water, the water enters the cylinder from the intake manifold. Due to the incompressibility of water, the piston movement stroke will be shortened, which will cause the engine connecting rod to bend or fracture. Under extreme conditions, the connecting rod will fly out to strike through the cylinder block. The reason of automobile flameout in water is that the distributor loses its normal ignition function after the distributor cover is filled with water. The filter element of engine air filter is soaked in water, which leads to the increase of air inlet resistance and water inflow in combustion chamber, and the spark plug cannot be ignited. If you restart the engine at this time, it is easy to burst the cylinder.