2004 Gmc Yukon Air Conditioning Problems. You wouldn't really know unless you pulled the panel and checked the lines. Most of the time, when your yukon’s air isn’t blowing cold enough, it is going to be a lack of refrigerant causing the problem.

In addition, many owners of this specific model reported having issues with. Most of the time, when your yukon’s air isn’t blowing cold enough, it is going to be a lack of refrigerant causing the problem. Previously, after turning off ignition and restarting the a/c would work fine.