Alright i have a 04 1500 4.7.. for a few months the rpms would rev about 400 -800 more than norm. I replaced the tbs and still nothing... the other day i was heading out of town and out od no where i was running 5500rpms at 50mpg.. pulled over and now the truck wont shift..i can only go 30 and will go 4500rms.. i changed the (map) sensor and still doin it.... what other options could i go about.... thanks ya.