1998 Plymouth Breeze transmission wil not shift

Transmission problem
1998 Plymouth Breeze 4 cyl Front Wheel Drive Automatic

Hi. Ok I got a plymouthe breeze from my wifes aunt and they told me ther was trans probloms well they were rigth it will shift in to first and second just fine just not third and I cant get over 40 mph and it will only go if I let it warm up for a long time before I try and drive what do u think it is I have been told it was the tourqe converter but I dont know bout transmissions