Well, I was just starting to feel good about fixing two coil packs and my check engine light went away. Coming home today I turned off of the main highway and started heading up a hill on another highway. The transmission will not shift out of 1st to a higher gear. Once I got to the top of the hill it would only coast until I was on an upgrade and then it will only pull in 1st until the grade slopes downward again. I am going to check the transmission fluid, but checking to see if this sounds like something that happened to anyone else. Thanks,