Tony Ankar

Update: 3,500 miles on my 2020 Sierra 1500... No A/C on driver side (blows hot air out), then all A/C goes. Dyed, pressure tested, and can't find a leak. Last "repair" attempt (i.e. recharge refrigerant) lasted two weeks. After 3 or 4 visits to GMC service, finally got them to order new parts. Replaced the condenser. No leaks found. Replaced condenser unit anyway. Took the entire dashboard out to access the evaporator. *Found leak on evaporator. Replaced evaporator. 1 week and 500 miles have gone by. So far, so good. We'll see..

2020 GMC Sierra 1500 Sounds like I have the same issue as some of you. Driver side air conditioning is not cold. Took it in with 1200 miles - refrigerant was low. Service re-charged refrigerant and put in green dye. Same issue came back 3 weeks later. Refrigerant was 50%. Clearly a leak but they cannot detect the leak. They are saying they may have to replace/repair the evaporator (which is a pretty invasive fix). Possibly the condenser. Has anyone had this issue resolved? What was the solution in your case?