Ohk so a few days ago i was on the thruway and i was doing about 60, i floored it and took it up to a 100 and it would not shift into 3rd for some reason, it felt like it was stuck at 6000, i even took my foot off the gas and tryed again to get it to shift. Eventully after about 5 seconds it shifted and everything was fine. Then again today it happend going into second at about 4500 rpms it just sat there then shifted. Could this be a tranny issue or possibly or my pcm not telling my tranny to shift? My tranny feels like it shifts a little rough since i got it but the fluid is clean and not low.