I am thinking it has to be a leak somewhere. I am going to have someone pressure test the lines for me.
I am not sure why someone would unhook the suction and liquid lines if the rear TXV was bad, either way the rear AC does not work.
I recently purchased a 2005 Suburban Z71. It has been getting hot out so I turned on the rear AC for the kids to learn that it only blows warm air. The first thing I did was verify that the blend door is working, which it is.
Next I stuck my head under the hood to find that a AC block off...
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