1997 dodge ran van with 4 speed automatic overdrive. for a week or 2 it was having a problem shifting into high (3rd I believe as I never activate the OD), I'd have to give it more throttle. then it had started to slip a bit (like it was almost in neutral & today I went several miles & at an intersection It would barely creep forward. after sitting a few minutes it barely crept forward enough to park it. after several hours I started it & it went about a half block good then total slippage in any gear position. I dont want to spend thousands at a trans shop & I have been wanting to get rid of it for awhile now. I was thinking of haveing it towed to a trans shop & have them replace fluid/filter & adj the bands & if that dont do it then I'll part it or junk it. do these symptoms sound like a possible fluid/filter/band issue? If not I might as well have em tow it home/forget the tran shop & call it done. Your thoughts please and thank you for your time.