Cadillac STS Forum - 2005 through 2012 Discussion, Dual climate control problem in Past Cadillac Vehicle Discussion; Maybe someone can point me in the right direction....my cars ac/heat is acting up. Even with the fan off there's ...
- 02-23-13 05:52 PM #1Cadillac Owners Member
- Automobile(s): 2005 STS V8
- Join Date
- Nov 2011
Dual climate control problem
Maybe someone can point me in the right direction....my cars ac/heat is acting up. Even with the fan off there's a slight clicking noise coming from dash...when I turn on the fan heat or ac I have to turn the fan on high cause the ticking is really loud then goes away then I can turn the fan down. The other prob is the drivers side air doesn't blow heat when the heat is on and the the passenger side doesn't blow ac when I have the ac on....before I start ordering parts I don't need I was wondering if someone else had this prob and knows exactly what I would need. Thanks!!
- 02-23-13 07:39 PM #2
Re: Dual climate control problem
It sounds to me as multiple issues. The cooling issue could be as simple as low freon. Based on multiple member posts, passenger side cooling suffers first.
Clicking would normally suggest a vent/blend door actuator issue but if it varys with fan speed, it might something with the cabin filter or fan. The described symptoms fit with one or more doors not operating correctly. It could be the control module, too.
It might actually be cost effective to have a dealer diagnose it. Automotive HVAC has come a long way as a specialty.
- 02-24-13 02:53 PM #3Originally Posted by silver02ta