I searched and didn't run across any topics that covered this so here goes. I've have v6 with an automatic and I'm wondering if my torque converter is flaking out. Here's the symtoms. Sometimes starting off it slips like crazy and I have to back my foot off or it just keeps slipping. It hesitates to shift into third when I need to merge with traffic and then shifts rather hard into it if I dont back off of the gas. At 55-70 mph it will strangely jump up a couple hundred rpm if I sink my foot a little in the gas or if I start to come to a hill then if I give it a little more gas it drops back down, give it even more and goes on and downshifts. It isn't dropping out of overdrive into 3rd, its just dropping/revving 200 or so rpm. My thoughts are that for some reason the torque converter is jumping out of being locked at those speeds. Anyways, thanks guys.