Funeral Car Posted January 11, 2022 Report Share Posted January 11, 2022 Hi everybody, I am new here, I recently bought a Cad deVille 1997 4.6 279 hp Having a lot of issues with this car. For a start, can somebody tell how much content the airco system needs? it now contains 570 gr. The airco also remains on Econ, no matter pushing the auto button. The compressor wil run on connecting 30, 87 and 85 of the AC relais. There is also a message on the BC ACM B1983 history, is this message related to the problem? Quote Link to comment Share on other sites More sharing options...
rockfangd Posted January 15, 2022 Report Share Posted January 15, 2022 Welcome to Caddyinfo. First off if I did the math right you are low on freon. 907.15 grams should be the capacity. Once properly charged you can clear the ACM codes just like you pulled them. Let me know if this works, if it does not we can go farther Quote GM FAN FOREVER Nice, clean, luxury= fine automobile Link to comment Share on other sites More sharing options...
Funeral Car Posted January 30, 2022 Author Report Share Posted January 30, 2022 thx very much! next saturday refill...... Quote Link to comment Share on other sites More sharing options...
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