Question about 2000 Cadillac Seville STS
My air conditioning is fully charged but it is blowing heat out on the driver's side. The passenger side is cold. Why is this and how can it be fixed?
It sounds like you have "zone" climate control. With "zone" climate control you can adjust the driver, passenger and sometimes other "zones" to different temperatures for the comfort of all passengers. Make sure that the Driver side is set to a cool temperature. If it is then you more than likely have a problem with the temperature controller for the driver side.
Posted on Jul 10, 2013
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Posted on Jan 02, 2017
SOURCE: Air Conditioning
Try changing the lower temp sensor in the air duct on the drivers side. I bought one and never replaced it. before the part arrived I took the lower sensor out and taped it up and put it back under the dash... not in the air duct housing were it belongs. believe it or not it works so well I did not even see a need to change the thing.
Posted on Jan 08, 2009
Sounds like a Blend door issue, but could be the controller switch, Test ALL modes of operation to see what works and what does not. That should narrow it down a bit. The Blend doors are flap/ doors that regulate air flow, newer vehicles are plastic - electric assemblies ...prone to failure. Any clicking or thumping noises during switching modes and on-off suggest a bad Blend door. Hope that helps...good luck
Posted on Jan 12, 2009
SOURCE: 99 STS AC is blowing hot air
I had the same problem but it was blowing hot air on the passenger side of the car. I assume you have the dual zone controls that I have as well. The problem is most likely the damper that controls the flow of hot and cold air into the car. The motorized component of the damper is most likely not working and its stuck in the hot air position.
I had mine replaced by a repair shop so I cant tell you how to replace it but it may be something that you can do if you have the time and patience to work on it.
Posted on Jun 09, 2009
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