2003 Cadillac DeVille Q&A
2003 Cadillac DeVille Question: heater not blowing
It sounds like you have an elictrical short in your wiring - Visitor
Sometimes there is a bad connection or an exposed wire/connection. If you hit with hand directly under the glove compartment (a little to the left) and it starts, then most likely connection problem. - Visitor
If the blower motor is intermittent I had the same problem on my '03 - remove panel under dash on passenger side - look up and see the blower motor plug - all I had to do was to wiggle the wires around and the motor started to run continuously - changed the motor cable location slightly so that stress was different on the motor wiring at the connector - been working great ever since. - jrambler
I have checked each vacuum line and each holds 8" mercury rock solid. all actuator levers working properly. Vacuum from source and vacuum tank working properly. Electric motor on mixing chamber w...
Heater does not blow warm air
I can hear it running but it does blow out the vents
No blower motor blowing air through vents or heater or a/c. Bought the module for 1998 Caddy, and it didn't work either. checked all fuses they were good. This is my only issue with my Caddy.
The ac and heater inside my car blow but don't come out cold or hot .. what is it and what can I do about it