Not so new but i will follow the directions. I{ve owned a 2004 Monte Carlo since 2007. It is a 2004 SS 3.8. A new issue that I have tried to deal with is water from the A-C condenser filling up in the AC ducts. I have taken off the molded reducer for the the water line and thought it could be cleared there. No good tried compressed air no gold. pace a sold dowel into the hole 3-8 met with what felt to be a sponge No water is leaking into the cabin some is coming out under the car but certainly not enough any suggestions

 

I take it you mean the evaporator? – the condenser (condenses the freon from gas to liquid) is in front of the radiator. The evaporator is where the liquified freon expands which causes cooling due to adiabatic expansion.

I'm not familiar with your particular layout but it sounds like you're on the right track. The assembly that houses the evaporator should have a drain hole/port at the lowest point. What commonly happens in cases like yours is some ~20-years of dust and crud has collected inside that assembly and clogs the drainage hole/passage; not unlike the drainage holes along the bottom of your car doors which should be cleaned out at least once per year.