How to repair ac problems?
80

Asked by Beautiful52827 Apr 27, 2020 at 07:30 PM about the 2008 GMC Envoy

Question type: Maintenance & Repair

Ac just started blowing hot air only.
Refrigerant is full just still only blows
hot air

1 Answer
11,605

FJ4072 answered 4 years ago

Make sure there's coolant in your radiator and engine isn't overheating. The AC has a thermal switch, which will turn it off if too hot. If not, it's your blend actuators in the dash which blend hot and cold air. Usually these will blow after battery is disconnected and reconnected, especially with the blower motor on.

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