[mean81GT]

car accelerates fine. Will shift from 1, 2, then drive, and then if i take my foot off of the gas, overdrive, but if i keep my foot touching the gas, it won't go in to overdrive. Also, if i do take my foot off to let it into overdrive, the instant i touch the gas again it shifts back into drive. But what worries me is that it isn't a regular shift, the engine revs right past overdrive until around 3K rpm where drive kicks in. Any suggestions? Maybe a vacuum problem? fresh tranny fluid by the way, just had it flushed.