Okay, I am probably sure that some one has posted this problem before but unfortunately I have failed to find the thread. I am driving a 97 Tbird, with no mods to date, the problem is that while driving over and intersection with a little bit of a hump (nothing to horrible but just an average intersection), off the line, I am at WOT, As soon as I get to about 4500 rpm, the car shifts to 2. Sounds normal Right, but it doesn't take in 2, it is almost as if i put the car in neutral, or like it just slipped gears? i have just recently had my fluid changed to mercon V, and no problems for about 500 miles, and now this. Any help would be appreciated, I am wondering if my TC isn't going bad.