the transmission in the 95 taurushas been replaced however on 3 different occassions it has had hesitations shifting up through the gears. my question is, is there anything external that plays a role in working through the gears? like a vaccum line, sensor or computer part. i hate to have a 3rd tranny put in if not the real problem. quick response is needed since parts warranty runs out on tranny II in 2 weeks.