i'm not sure that it'll help but i'm goin through a tranny mystery myself.i have a 98 SE 2.5,tranny bangs from 1st to 2nd gear but only when i get it all warmed up drivin on the freeway.i did the code reader thing and it says TCC SYLINOID stuck in on/off position.i'm currently trying to figure out how to fix it because from everybody i talk to it's not gonna be a task i want to take on myself but that is yet to be seen.so my suggestion is to take it to an auto part store,they do free code testing at autozone or murry's or pretty much all the big chain stores,find out if you get a code,if you do research it and go from there

mike in cleveland