i took my car out for a drive just now after putting my vacuum line on my bov that i was missing...i dont think it has anything to do with this...or could this be a vacuum problem? at first it was all good driving soft and hard, and then... when i put my foot down, it would down shift, go up to 4000 and it feels like something is pulling it back and preventing it to go higher or upshift. i could be wrong on what i feel, im gonna take it out and drive it again in an hour.. any thoughts? this tranny has like 40,000ish on it.