I just purchased a 96 Grand Prix to help save a little on gas money. It has a strange problem with the transmission. It almost acts like TCC lockup applies right after it shifts into 2nd gear. Also it does not want to downshift when coming up to a stop. I have felt quite a bit of shudder as well. Every now and then at highway speed TCC will kick out and rpms will jump up 300 rpms and then it drops back down.
Please let me know if you can help.
Thanks!