I changed the factory stereo in my park avenue and since then I have had problems with my a/c
My a/c has been stuck on defrost and the floor for the last 2 weeks I have changed the climate control center, actuators and the programmer none of these have solved the problem. I was told that many people have experienced some dash issues after having a commercial stereo installed in these vehicles I need help
If you have the manual A/C setup. I suspect when the new stereo was installed one of the vacuum lines near the install was removed or damaged or the vaccum switch/actuator was disconnected. The vacuum allows the blend doors to open and close. If you have the electronic A/C, then your mode actuator is not working. You'll have to remove radio again to see what the issue is.
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