Well I got my engine back in last night after putting a new (rebuilt) torque converter into my car, along with taking the transmission to a transmission place to have the shaft that the torque converter rides on replaced. So, I'm on my drive home, and everything seems all fine and dandy, and then suddenly for no reason the trans downshifts into second. So I pull into a parking lot, look around the car, no puddle under it, everything appears to be fine. I pull out of the parking lot, and it gets to second, and stay in second for a whole, thhhheenn eventually goes to 3rd. The rest of the trip home (although not very long) it goes into 3rd. This morning, I drive to work, although it only gets as high as second. My ride home from work, it decides to go into third like it should. I need to recheck my fluid levels to make sure they are good (since the torque converter was new, it tooook loooots of fluid). But BLAH! It finally doesn't leak anywhere and the damn thing can't make up its mind when shifting. Please help before i start just driving in reverse.