My power steering pulling broke off and I put a new one on as well as the new belt, then as I pulled it out of the shop it would no longer shift. I did have Advance auto put their machine on the van, it came up with some code TCC solenoid or electric something, one shop told me they could probably fix it (fix what they never said) however the guy did know it would cost me around 400 bucks. This somehow just stuck me as a rip off. I still do not know any more now then I did when I had the professionals run a check on it. Also another shop said they can unplug this switch thing, if that is what the problem is and they seem to think it could be.