Chrysler just replaced my radiator, oil cooler & heater core under warranty because of a no heat problem. Now I have great heat when I turn it to maximum on manual. When in automatic and I set it at 74 degrees I get some heat on the floor but 74 degree air out of upper vents. Outside temp 36 degrees and I can't get the inside warm enough to not need a coat on when I set it on 76 degrees. Any ideas? 2015 RT 35000 miles