Thursday night drove my 1996 Lincoln towncar through a puddle. It was as high as at least the top of my hubcaps. Friday-car would not start. Mechanic installed new starter and gear shift chain. Today, car loses power on highway. Catalytic Converter? Fuel pump? What could I have done driving through this puddle or is all this a coincidence? Before Thursday the only real issue with the car was surging at stops.