Hello everyone! i have a quick question about my transmission. the last few times i have driven my truck the transmission has been acting up on me. normally when shifting from 1st to 2nd gear it will shift somewhere between 1500-2000 rpm. lately going from 1st to 2nd gear it has been "hanging" in first and not shifting until closer to 3000rpm. it still shifts as smooth as can be and i have no problems with any other gear. but every time i pull out from a stop it sticks in 1st. any help would be appreciated, so i can figure out my best option for trouble shooting.