I have a 2002 kia sedona with 102,000 miles. Just noticed yesterday that when the van shifts from 1st to 2nd its kind of rough, you can feel it jerk. Not sure what the issue is but I hope its nothing major. Also, not sure if this is related or not but there has been a few times where I am going down hill with my foot off the gas and its like the van downshifts and the rpms go up so i end up having to press the gas to make it shift back up. And one more thing that has happened lately is that sometimes if im sitting in park with the van running my rpms drop to pretty much 0 and makes the van shake and all so of course i shut it off and let it sit for a few minutes then restart it and its fine but then the check engine light is on but then it goes back out. I have had my van looked at for that issue by my uncle who is a mechanic but this was after the light had went back out and he couldnt get it to do that same thing and told me that when it starts doing it more to take it back to him. ugh!! can anyone help tell me what the heck is wrong with my van??