Cadillac: 86 Cadillac DeVille- Heat,A/C and fan, electrical schematics, cadillac deville

Question
Dear Tom,

I can’t thank you enough for this valuable service. I have a 1986 Cadillac Deville. The A/C worked fine until this summer when it died, but I still had heat and the fan worked fine. Then about a month ago, they quit as well. I have tired it on all levels Auto/Econo etc. There is no air at all coming out of any vents (including windshield defrost). I have checked all the fuses and they are fine and am unsure of what and in what order I should check next (i.e. blower control module?). Any advice you can provide would be GREATLY appreciated. Thanks!


Answer
If your question is that the blower motor quit running it can be either the blower power module, blower motor or the programmer.

You will need to contact me at:


tomcjoy@msn.com


In order for me to provide you with pictures, Diagnostic procedures and electrical schematics 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 .


tom