Have Jeep Questions? Ask a Jeep Repair Expert for Answers
Hello, my name is ***** ***** I am a professional here at Just Answer. I have noticed that your question was not getting a response and thought I would see if you still need help with this.I apologize for the delay and I hope I can still assist you with this here.The first thing that needs to be checked is to install a set of pressure gauges and read the systems pressure. A full systems pressure with the compressor running should be right at 35 to 40 PSI on the low side and 200 to 225 PSI on the high side. Let start with this and post back with the results and we can work from there.
To check the system pressure you are going to need to connect a set of AC pressure gauges to the high and low side service ports and read the pressure with the AC on and the engine running.
See there location in the link below, copy and paste the link to your browser to open and view it.https://dl.dropboxusercontent.com/u/104923897/Servic%20port%20Jun%2021.pdf
If the control head is not controlling the blend door and or any of the air mix doors yes it can affect the AC performance.
You would need to start first with making sure your system pressures are okay and then the next step would be to run a system scan to see if there are any fault codes setting and if so , those would need to be addressed from there.