this sound new to me when push the start and will go away .. on 3rd sec in the video you hear it clearly.. it there is certain fluid movement upon start under the dash ?
http://www.youtube.com/watch?v=J3yKfqe2nMQ&feature=youtu.be
http://www.youtube.com/watch?v=J3yKfqe2nMQ&feature=youtu.be