Air Conditioner Coil on 1992 GMC Yukon

I have been told that there is a coil that needs to be cleaned in order for the air conditioner to blow cold air. Any idea where it is located and how I get to it?

Asked by for the 1992 GMC Yukon
1 answer
could be the condenser or could be the evap. condenser is in front of the radiator and the evap is inside the dash.