Finally got the automatic tranny replaced in my '99 Tiburon. She ran fine for a week. And then while driving home, it just revved up and would not go into overdrive. I had to pull over and now it won't go into gear at all. The tranny seems to be fine. Just now, when you put it into gear it makes a buzzing/clicking sound. The car won't move. We think it is something electrical. Any thoughts? I'd appreciate any feed back.

Thanks!!

Bethany