3800 overdrive shudder

[daturbosix]

around 40-45 while just cruising at light throttle the rpms fludder ever so slightly, but you can feel it also. it only does it like 4 or 5 times before it will go into overdrive, or is it converter lockup?? either way, when its done doing its thing, rpms drop and its fine..

at heavy throttle and WOT it doesnt effect anything, shifts like a top.

ideas? thoughts?

i was thinking torque converter lockup solinoid... am i following the right track?

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[Toasty]

sounds like TCC oscilation... first thing to do is get the fluid exchanged, (not just drop pan, but a whole fluid exchange) that can help. otherwise, yeah it could be the TCC solenoid.