i have a 94 impalla ss. the transmission is very sluggish unlike 20000 miles ago. there is 130000 miles on the car and it is stock. the car had done several powerbrakes earlier in its life. in drive or overdrive from a stop the car is very slow until it shifts into second gear. i was stopped on a hill and it would not move in drive. the engine revved some and the speedometer registered 3 mph. i down shifted into 1st or 2nd gear and it took off. i don't know if the tranny is worn out or if something can be replaced or upgraded to solve the problem.