Cadillac Repair: 1994 sedan deville a/c repair, radiator pressure tester, radiator fan

Question
had compressor replaced .now the water pump and for some reason the serpentine belt needs replacing. also the radiator fan makes a noise. how do i trouble shout why it has been said that i have a leak after replacing compressor. compltely confused why all other problems.

Answer
If the sewrpentine belt has cracks on either side of the belt and or missing grooves on the belt, You need a new one.

You need to pressurize the cooling syatem with a RADIATOR PRESSURE TESTER and see where the leak is coming from on the vehicle.

As for the noise, I would have to hear it or it could be caused by the belt.