The programmer as seen through the glove box with the connectors and the plastic case removed
The 1977 / 1978 Eldorado MK II Automatic Temperature Control Programmer
The transducer which caused the problem (the golden part with the single vacuum line going into it)
The transducer is connected to the electrical board through a couple of pins - it was not connected properly and somehow became loose over the years - that was why the system did not work.
***UPDATE 2015 - its not connected with pins but soldered to the circuit board - 3 of this soldering points were broken***
The vacuum checking relay and the electric connectors.
The vacuum power motor
from the 1977 FSM
Trouble shooting guide for when the system works in full AC mode only.
A color coordinated electrical schematic with annotations to describe the various functions of the system.
UPDATE 2010: In the meantime (since 2009) the Boyne switches they are getting reproduced and show up on ebay all the time. Also OPGI shows them in their Cadillac catalog. Its harder to find one for a T&T column as they are not getting reproduced so far. I do not know where one could find a switch for T&T though. If you know of any resource for T&T switches please let me know, I would love to have a spare one for my Eldorado!
When I was looking for a switch for my 1967 Deville, I only investigated resources for cars without T&T columns and this is what I found out:
According to the 1971 parts manual there are two different ones for standard column cars and one for T & T
The Cadillac Serviceman from August 1967 shows a revised procedure for a much easier installation of the switch.
If you need the shop manual instructions for a tilt and telescope column click here! Or just use the procedure above!