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Apologies if this has been exhaustively covered but the search function was less than helpful. This is a '99 Expy 5.4L
Should the A/C be working on the "Panel/Floor" setting? The owner's manual is not exactly clear on this point, referring to variations in temperature/humidty. Our Expy's A/C is always running on the "Panel/Floor" selection when we would prefer just outside air.