1988 Turbo Supra
 

I have been having a nagging problem with the Supra. I can be driving it at anytime and any speed. 1 of 2 things occur. The car has an automatic transmission. When accelerating, it will not shift out of second, or if I am going faster, it will feel like it is downshifting and will slow down and not shift up. Help! I have had routine maintenance on it.