How do you adjust the belt on a 1999 Pontiac Montana?
The system that the belt runs on ,is called a serpentine system,it’s a one belt set-up ,and they are self adjusted by a tensioner,sounds like…1- Your tensioner is seized,or ..2-your belt is streched..Sometimes the tensioner can be free’d by taking it of and working it in with lubrication,but if not,get a new tensioner and a belt, hope it helps.
