2013 GMC ACADIA DENALI AC BLOWS WARM AIR, LOW PRESSURE PORT FIND

2013 GMAC ACADIA DENALI - NO AC - BLOWS HOT AIR - LOW PRESSURE PORT FIND. THE LOW PRESURE PORT, TO ADD FREON IS A LITTLE DIFFICULT TO FIND ON THIS MODEL. IT IS UPSIDE DOWN AT THE VERY BOTTOM AND YOU NEED A LONGER HOSE THAN WHAT IS NORMALLY GIVEN, WHEN YOU PURCHASE. I USED A FREON WITH SEALER IN IT FIRST, I HAD TO BUY A LONGER HOSE AND ANOTHER SMALL CAN TO FINISH IT. CHECKED FUSES AND RELAYS FIRST. HOPE THIS HELPS SOMEONE.