I have just recently rebuilt my trans "5hp30" installed it yesterday. it has been on jackstands for a month. I left it on jackstands and started it to top off the tranny. I cant get the trans to do anything. it wont rotate the tires at all and i get a "trans program" indication on the dash sometimes? the wiring/connection looks good. could it be the speed sensor not seated properly? could it be that i didnt adjust the gear position cable properly? has anyone had anything like this happen?