2005 Cadillac DeVille Q&A
2005 Cadillac DeVille Question: low heat
You are probably correct in assuming that the outside temperature reading of 140 on your 2005 Cadillac DeVille is affecting the heater operation. The outside temperature sensor is mounted in front of the ac condenser on one of the support braces. If the wiring to the sensor looks OK it may be worth while to replace the sensor and see what happens before spending a lot of time trying to diagnose the problem. - Jim Taddei
when I run the ac driver side is cold and no real ac blowing action on passenger side
Both 1990 DeVilles I've had don't/didn't deliver good cabin heat amounts . I live in northern Vermont and really need it in the winter. The cabin does eventually get warmish, but not toasty in very...
I have a 1990 De ville and the a/c unit needs to be recharged.The system runs but no hot air comes from the vents. I have no leaks. last year the heat worked fine with the exception that it wasn't...
the outside temp reads 127 degrees and i only get heat at when set at 90 otherwise air comes on