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What size engine is in that Expedition? Manual or Auto A/C? Front-only or dual?
Got it. Thanks.
That data indicates low refrigerant levels. Time to put the scan tool down and grab a set of manifold gauges and put on the UV glasses to find that leak!
I see. That PID that shows the pressure switch being open, is it for the High or the Low side? Is the PCM receiving an A/C request?
Did I loose you? What kind of scan tool are you using?