Clunk and swoosh sound

The other day, I drove through a 3 ft deep puddle...where theroad flods out from rain. After that, I can now feel a clunk when I am comming to a stop. or as i slowly accel. Any ideas on this? In a way, it almost feels like a miss or a surge from the engine. Only happens when stopping or taking off. Nothing is wrong when in park or N. Thanks