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Larrytay88,
been reading your posts, don't despair. I have similar problem with 95 940 in Florida where temps have been upper 90s for months. I keep a thermometer in dash vent, consistently reads 43-46 degrees Farenheit (after the AC has been on a few minutes). But, never totally comfortable in the car at low speeds or in traffic. Engine never overheats, temp gauge works, needle stays mid-range. My AC control unit went bad 2 years ago, installed new one from FCP Groton; AC worked again, but still experience problem at low speeds. On cooler days, or with partial cloud cover, outside temp falls to 80s, I have to lower AC fan to position two or one because it gets too cold. At night on the freeway, it gets so cold, I intermittently turn the AC off. But, like you, I have not isolated the root cause of the problem yet. I SUSPECT it has soemthing to do with a temp switch, temp sending unit, pressure switch, or some electrical or electro-mechanical device that doesn't work properly when the temp is over 85 or 90 degrees, likely due to insulation breakdown of the device. With 44 degrees at the vent, seriously doubt it is the compressor. Try placing a thermometer in your dash vent and get some insight into how system is operating.
BTW, read post from Jim Holst, a great poster, and in your case, he may be absolutely correct about the resoldering suggestion.
best of luck
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