Just picked up an 82 at an auction and the headlights do not pop up. The lights come on when the switch is pulled but no pop up. I pulled the switch below the column and it didnt activate them either. Anyway just looking for some suggestions on how I can test if the vacuum is working. How should I go about troubleshooting? I have had a couple 69-72's and never had to mess with this problem, I guess I was lucky.