Hey, I have a 02' GP GT with 90K and I have rough shifting when the car is changing gears from 1st to 2nd and 2nd to 3rd and I wanted to know whats the problem. I bought my car when it had 65K so I dont know when, if ever, the last time the transmission fluid was changed. The fluid is not low and the fluid is still the red color. I've been to 2 transmission shops and they say it drives fine. I dont have a check engine light on. I just wanna fix this because its getting really annoying. Its been doing this about a year. It hasnt got any better or worse.