why does no one go to a shop that specializes in transmission work? no one online is going to be able to magically diagnose the faulty component(s) of an automatic transmission. there are so many different components that are in play here.
there's a place by me (
RC Trans & Gear) that is incredible at solving any transmission issues. yes, most auto trans shops seem to be scammers, but there are some out there (check reviews) that know their trade well and won't waste your money.