I have a 2000 Cadillac Deville. It is clicking like it has a dead battery. Last week it had flooded in wildwood and the car was ran in the water for 3 min. It said immediately turn off engine which was done. The water level was only half way up to the rims. I dont know what is wrong the oil looks fine i don't know. It just turned over 100000 and i believe that the water may have just triggered it. Its a beautiful car and i just want it back. Please help me!!!