So I was fixing my son's car this morning. He's in Hawaii doing a summer bio course before starting university in the fall and I finally got around to replacing the broken fuel pump. As it happens, the fuel pump is the conjoined twin of the vacuum pump on the old Ford Y-blocks:

So when I got it in and stated the car, the windshield wipers started working! w00t! That was another issue I needed to fix and now no longer have to. :)