Hello. 2002 Ram 1500 5.9..... I can't seem to get any cold air to come out of the passenger side vents. I have done some searching regarding blend doors and this doesn't seem to be my problem. When I dropped the glove box, the door to the upper right opens and closes as I believe it is supposed to. The heat will come out of the vents but when you change the temp to cold it only comes out mildly cool. There is another motor directly behind the a/c controls that does move and closes a flap too. I lost. help