Hi All,
I know this is an older thread, but very helpful! I have been working through an intermittent window problem. For my '86, both windows would stop together or work together. I pulled the relay behind the oil pressure gauge and it was working just fine and when I jumpered the connector I still got no joy. I finally found the problem while jiggling the door wire connector at the to of the closing panel. It worked for a sec and then stopped again. The connector looked just fine and then working down the wire I found this...
I originally thought it was a mouse bite, but I think it was just chaffing of the wire in the door jamb. When I pulled the wire bundle out enough to see it, there was a small hole and some wire showing. I cut back the sheath a bit as I could see meltage in there. It obviously had shorted out a bit, but thanks to the PO wrapping the fuse (#1) in aluminum foil, the wire became the fuse. Lucky, that bundle is really long so it won't be too upset to loose a little wire length when I splice it all back together. There was also a small hole cut in the sheath up higher where it was accessible probably to check for voltage in the wires.. I'm assuming this had been an issue for a while...
Franny