Cadillac Repair: A/C vent problem, cadillac sedan deville, center vents

Question
1989 Cadillac Sedan DeVille 4.5 liter

I bought my 1989 Sedan DeVille several months back.  At the time of purchase I had flickering of the displays; air would come out of the defroster vents, then the center vents, etc.  I changed the BCM and everything was fine, but when I put the A/C on, only hot air would blow and only from the defroster and floor vents. I manually disconnected the damper linkage to cut off the heating coil and allow the cooling air, but it still only comes out of the floor and defroster vents.  Also, I have no computer codes.

Is it a problem with the climate control box that the damper is connected to, or can you guide me accordingly?

Thanks,
Paul  

Answer
You will need to contact me at:


tomcjoy@msn.com


In order for me to provide you with pictures and and electrical schematic to find and fix your problem since this board does not allow sending pictures.

PLEASE include your original question(s) and the MAKE-MODEL-YEAR and ENGINE SIZE of your vehicle when you contact me.

PLEASE tell me if you do your own repairs and or your skill level of auto repair. This is VERY VERY important if I am to be able to help you repair your own vehicle