not a mopar question, 09 chev uplander

its my bad for sure not getting it fix it has bean this way for years. Cindy my wife is blind in the left eye, and now her right eye has had a retna detach, and the hospital is fifty miles away she get surgery tomorrow and we have to do flowell up appointments for the next 6 weeks so is cold until i get the rps up to 1700 then she blows lots of heat.i hope they can fix her if not total blind at 57 years old.thanks for the help.