What could be wrong with my ac? 2000 Ford Expedition?
I was told it would be the ac panel. So I replaced it and it didn't work. To be on the safe side, I replaced it with another one. Still nothing. The compresor works but only when 1 of the 3 wires are connected on the control panel. I connect all the wires and it stops working. Also, the vents dont blow any air at all when the compressor is running
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Answers
Have you put gauges on the system to test pressures? Have you had the car's HVAC scanned for trouble codes?