It sounds like there is wires that have a loose connection somewhere.
I have a 79 DeVille and the Blower Motor was OK but at the Climate Control Switch that controls the Air/Heat/Fan Speed a loose connection where the wires fit on the Control Switch was loose and a defective Climate Control Switch was the problem on another 79 DeVille.
I know there are years between our Cars but this might help you as a Dealership can be expensive.
Helminc.com also makes Service Manuals for many makes and models and the Service Manuals are just like the ones at a Dealership. They are a little expensive but worth the investment if you plan to keep your Auto.
Cadillac stopped making the Coupe DeVille after 1993.
Check fuses
i know the AC in my ZX2 stopped blowing because of a loose wire
If a 2001 Cadillac DeVille shakes when the car is idle, there could be an issue with the powertrain. There could also be a problem with the crankshaft position sensor.
wind stops blowing when there is no high pressure area & low pressure area- and this is possible only when earth gets equally warmed by sunrays.so,if the wind stopped blowing for a year then there will be no rain on that year. on other hand the production of electricity by wind power will stop.
Has the fan stopped blowing or is the air coming out cold? Need more info please, make model, year and such.
Could be anything? Best to have a pro look at it
no
No power, no air! Simple
because you car is stupid
No power, shhhh sound from ehaust pipe when engine is revved up
This sometimes happens. It is nothing to worry about and is perfectly normal. It is probably just that your period hadn't completely stopped