Originally Posted by
studebaker57
sometimes won't down shift or sometimes won't upshift after slowing down. has unknown code and can't access computer
How many miles are on the car? If you are near 70K, it might be time for a fluid change. It could be that simple. Mine was shifting "weird" when I first bought it (with about 85K on it) so I did the fluid change and haven't had a problem since then. When doing the fluid change, the shop did unearth a code for the tranny but I can't remember what that code was right now.
Good luck - RL