I have a 2004 KIA Sedona and have already put 22k miles on it. I love the van. I only have one problem with it. When traveling on the highway, the speedometer will sometimes just start going back and forth, usually when I have cruise control on, which of course it turns off as soon as the needle shoots down to zero. Doesn't happen all the time, but it happens enough to be annoying. I took it into the dealer and they ordered a new dash assembly for it and installed it. After that, it still happened. They know say that there is nothing wrong with it, but they just haven't drove it when it does it. In fact, on the way home from the dealer it happened again.
Has anyone else seen this problem? How can I convince the dealer that I'm not crazy and it is actually happening?