94 Caravan Transmission "Shudder"

[pettit5]

I've got a 94 Grand Caravan with a 3.3L and overdrive trans. Around 40 M.P.H. under a light load I get a shudder. It goes away when I hit about 45 or increase the load. It will also go away if I push the OD button and disengage OD. I tuned it up in the summer but have not done a trans service yet. It's got about 119K miles. Any Suggestions? Thanks

[Dodgevanman]

It's time for a transmission service. Use ATF+3 and a good quality filter kit.

If you still have problems, then take it in for diagnostics.