Bought a DX 3dr hatchback. Was running fine up until about 2 weeks ago. At first when I would be driving, the "shift" from 2nd to 3rd would be rough. Then it got to the point where I would have to "kick Up"(the gas pedal) just to get i from 2nd to 3rd. Now, as it stands, it will NOT go into 3rd at all. Just tops out in rpm's at 2nd gear with no shift. Is it signs of my Torque Converter or my Tranny?