During typhoon Ondoy, our car “Pogi” was submerged in flood. They are still trying to revive it. Anyway, here are the steps they follow on “How to Revive Your Car After It Was Submerged in Flood”
never never ever try to start your car after it was submerged in flood. it could do more damage to your engine.
remove the car battery. always use protective gear when handling car batteries
it’s wise to wait and let it sit out in the sun for a couple of days, just to be sure that all electrical wirings are dry to avoid any shorts
replace your car battery with a new one. remember, safety first! use protective gear
replace all spark plugs with new ones. dispose off old spark plugs properly
completely drain the fuel tank, and replace your car’s fuel filter
completely drain the engine oil. replace it with new engine oil. check to see the oil color, if its a muddy brown color, repeat this process until oil color inside the engine becomes golden or black. replace the oil filter.
replace car fuses if necessary or if corrosion occurs.
Also, my aunt is also thinking of buying an RV. She might get it through rv financing. Their vans. cars were also submerged in flood.