check for spark first by holding a plug lead end 1/4 inch away from an earth crank engine , you should feel and see a blue spark. if ok ,remove plugs.itll dry itseft out in half an hour. refit plugs...
An engine will flood if there's too much fuel going in because of a stuck choke, a bad spark not igniting the fuel, failed temperature sensors, bad fuel regulator, timing...the list goes on.
If the engine went under water so did everything else such as the transmission, front and rear differentials and all of the electronics. If you intend to continue to drive the vehicle it will become...