Why does my GMC climate control keep going cold?
Why does my GMC climate control keep going cold? If the line warms up and then goes cold again it indicates that there is not enough Freon in the system. This could be caused by a leak in one or more of the a/c components and an a/c leak machine will be required to locate the leak. If the line stays cold, it could mean a defective actuator on the heater box. Why is my GMC Sierra air conditioner not working? Lack of Refrigerant – Your Sierra’s air conditioner will not work if the refrigerant has disappeared due to a...