Stop in for a cup of coffee

View attachment 1715743944 Got a little time to work on the Duster this morning. Pulled the heat/AC controller. I had repaired a few of the vacuum nipples before. Now the rest are broken. Luckily I picked up a spare.
Also tried to figure out the turn signals not working. Was getting voltage across the flasher terminals. Ground was good through left or right circuit. But inconsistent to blink the bulbs when I jumped it out. Kept messing with it and now it works with a flasher. Hopefully they keep working, but don’t like when stuff fixes itself, cause it will fail again...

Even though you have/read a good ground maybe as simple as one going high resistance, at bulb or elsewhere. Intermittent....fun.....not.