Quote Originally Posted by BillBoost37 View Post
There aren't any vacuum lines that effect the amount of heat you get. The actuators for the blend door(s) are electronic. They do have to relearn after a battery unhook and may get a little confused depending on the year.

I rememmber reading about 97's having a count movement of 0-90 or something and the 98's were updated to 0-250 which kept them from forgetting/having bigger issues.
Understood, thanks for that. I will try to find the broken piece and take a picture, although no matter how many different search terms I use, I can't find what I'm looking for.