A while ago I thought that I had already fixed an issue with the wiring of the power vent window in the passenger door.
Yesterday when I was repairing the 6 way power seat which had a contact problem somewhere at a solenoid - suddenly the power vent window started to close itself when I shut the door. So the problem was back! (At least the power seats do work perfectly now!)
So I decided to spend the day in the garage - rewiring the 58´s passenger door as there definitely was a short somewhere in the power vent window circuit. Thats the kind of work I absolutely HATE! 52 years of bending the wires whenever you open the door took its toll.
The bug was easily found after I removed the kick panel, door sill plates, parts of the heat tubing, and the metal tube which is going through the door to protect the wires. 5 (!) cables were broken and only held together by the original fabric covering around it. The cables all broke exactly at the end of the tube where all the bending is going on when the door is opened. I will now have to splice the cables back together somehow and get them back into the tube. No idea how I will do this - I will have to buy some electric supply material first, but the shops are all closed over the weekend. I´m still stunned that the windows still worked and the only sign of failure was that they started to open or close themselves sometimes when I opened the door, and that the battery was drained at one occasion. I guess I was lucky that the car did not catch fire...

UPDATE - Feb. 8th:
I fixed it - read everything about it above or by clicking on this link!

Tags:1958, Eldorado, Wiring, Power Vent Windows, Restoration, 1958 Cadillac Repair Tip