3rd Generation Santa Fe (2013-2018)
2014 Santa Fe Sport 2.4L
after 15-20 minutes driving, outside temp upper 70's, AC on auto set to 66 deg, volume of air falls off sharply and cabin starts to heat up. If I turn off auto and AC then put fan on high, cold air and full volume air flow returns. My guess evap is freezing up, but why?