my 2000 dodge stratus has 122k miles and has always ran like a champ. but now it will run fine cold but once it warms up (after bout 15 min or so) it wont shift out of first gear. it shifts smooth when it does shift but after the first little bit it just doesnt shift. im goin to go to autozone to get the codes later but i was wondering if any dodge gurus out there have any advice for me. thanks.