I have a 97 grand prix gtp with a 4t65-e transmission. It started acting
up and I had a computer diagnostic test ran. It said the torque converter
>lock up selonoid circuit was stuck open. I replaced both shift selonoids
>and it shifted smoother than ever before, but there was one problem. It
>will only shift out of 2nd gear at about 3200 rpm. Occasionally it seems to
>be sticking in 2nd. Any suggestions on what to try next. Also I had the
>diagnostics run again with no codes found.
> Thanks for any suggestions you could give me.