Flooding at times is not expected, they occur following continuous rain over a long period of time. It is a sad incident to have one's vehicle submerged in water due to a flood. What should be done in such an occurrence? A wrong decision may right out one vehicle completely. However, with the right knowledge and information, such care would bounce back to life.
If your vehicle is in that flood and you haven't started your engine. Don’t start it!!!!!!!
Even if the vehicle is submerged and the water goes down. It's likely water has made its way into the engine. The first thing to do is open your engine air filter and check for moisture. If it’s moist or damp, DO NOT CRANK THAT VEHICLE!!! DO NOT ATTEMPT TO START IT.
Allow the water to go down, tow it away if possible. Get your mechanic to drain the engine oil immediately. Also, drain the transmission fluid. Do not take the risk of trying to drive that vehicle.
Let the mechanic disconnect the fuel sending unit ( fuel pump), pull out the spark plugs one after the other, and then crank the engine. You want to make sure water in each cylinder is blown out of the engine by the compression/exhaust stroke.
Once completed for all the cylinders. Connect the fuel pump (the easiest way is to remove the relay or the fuse ) and start the vehicle. It may idle rough. Leave it. Do not rev it. Allow that vehicle to idle for some 30 minutes.
Once it’s up to operating temperature, ( because you have replaced your transmission fluid ) engage the gears one after the other. From P to R wait 5 seconds R to N wait another 5 seconds N to D wait again. D to N again N to R and R to Park. After this. You can drive.
Once the vehicle is going again, it is best to replace both fluids after another week or two depending on how milky they look.
Be safe.
Happy motoring.
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