My 2005 chrysler pacifica is shifting very hard after about 5-10 minutes of driving. I have also noticed a whine noise in 1-2 and partially 3rd gear. I have checked the fluid and it is good. We are going on 90k miles and have had NO trouble until now. was wondering if anyone had an idea of what this might be? If I pull over and put the car in park, turn it off, and restart it, I'm good for about another 5-10 minutes. I have also noticed that sometimes it doesn't shift at all and then all of a sudden, BAM, it shifts and hard too. is thier a seperate computer for the tranny? just seems like I reset it when I puull over and go thru the steps..... PLEASE HELP!