It's the opposite, 'Max A/C' pulls air from the car's interior and cools it, instead of outside air. Every car I've had blows colder and harder on Max. Maybe you have a door in the ductwork sticking or junk clogging something. Also, if you've replaced your fan motor and fan, the aftermarket ones are not as good as the originals.I thought "Max" merely pulled in outside air as opposed to recirculating cabin air? Blower speed doesn't change (on non-climate control systems anyway). So if there is no change then it wouldn't be a blower issue but a vent/door problem which I'd guess is controlled by a small solenoid or electric motor?