Nicholas Acciardo Posted June 11, 2020 Report Share Posted June 11, 2020 Greetings !!! I have a 2008 DTS and recently my A/C just started to blow warm air (both sides and rear output). I checked the compressor and it seems to be engaging (on and off) when control is started. I purchased a can of R-134A refrigerant with gauge set and it shows that system has a present charge. After looking around I'm seeing many issues which call out either driver side or passenger side climate control issues...none directly pointing in my direction. Anyone have any clues as to the problem at hand? I"m not interested (unless it is a last resort) in taking my car into a service facility as LARGE QUANTITIES OF CASH isn't readily available for their taking. I appreciate any input available...ACE Quote Link to comment Share on other sites More sharing options...
BodybyFisher Posted June 14, 2020 Report Share Posted June 14, 2020 I would start with retrieving all DTC codes, some parts houses will retrieve them for you. If you have a bad actuator it will show up in the codes, they are electrically controlled in the 2008 I believe and no longer vacuum based. It is possible that your temp actuator/motor is stuck on hot air. Check and post all codes here, you will need B codes related to the AC system Quote Pre-1995 - DTC codes OBD1 >> 1996 and newer - DTC codes OBD2 >> https://www.obd-codes.com/trouble_codes/gm/obd_codes.htm How to check for codes Caddyinfo How To Technical Archive >> http://www.caddyinfo.com/wordpress/cadillac-how-to-faq/ Cadillac History & Specifications Year by Year http://www.motorera.com/cadillac/index.htm Link to comment Share on other sites More sharing options...
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