1970s 1972 Cadillac Climate Control Transducer NEEDED

[redcad59]

1972 Cadillac Climate Control Transducer NEEDED.
I have the fully automatic climate control system and have not only diagnosed a
bad TRANSDUCER UNIT inside the PROGRAMMER, but i have successfully disassembled the
transducer and found the bad diaphragm valve, so no further diagnostics needed.
If anybody has any idea where/who/how to get one of these parts or knows ANYTHING about the
early '70s Cadillac Automatic Climate Control systems that might prove useful, i welcome the advice.
Perhaps an entire PROGRAMMER/BOX is available, if not the individual transducer.
I have plenty of pictures of my work, as needed, including the disassembled transducer. 
Ronald Threadgill
Richmond VA
redcad59@pipeline.com

[TJ Hopland]

I would be interested in seeing the process and innards of the transducer part.  Mine isn't electrically open but isn't operating. 

Getting that far in I assume you have already figured out that you can manually operate the system if you connect a hand vacuum pump to operate the servo that the transducer was operating.  Not as nice as the auto system but beats freezing or sweating if the rest of the system works.     

[35-709]

Tim Groves
https://cadillactim.com/

For questions or more information, call 1-864-348-7732 or send an Email at tagroves@wctel.net

Parts can be sent to:
    Cadillac Tim
    109 Goss Scott Rd.
    Iva, SC 29655

[redcad59]

I just hand-rebuilt the 72 TRANSDUCER to see A: if it was even possible, B: if i could figure out how to do it, C: if i could 'understand' exactly how it worked, and D: if it might actually be made to WORK, or at least give me a clue if the PROGRAMMER/BOX was ok. THE TRANSDUCER IS NOW FIXED.  Meanwhile, THE PROGRAMMER TESTS FAILED.  It failed the main electrical tests suggested in the original SHOP MANUAL.  I pulled the box out and tore it apart and found THE FEEDBACK SERVO/RESISTOR/POTENTIOMETER was BURNED. [ it had actually burned out LONG AGO ] - So NOW i am looking for an entire CLIMATE CONTROL PROGRAMMER/BOX.  *SIGH*

[TJ Hopland]

I would like to see a write up on that repair and your understanding of how it works.