AC Blowing hot
Thanks
Hughey
Thanks
Hughey
it doesn't really matter if the radiator you replaced and engine coolant is leaking or not.
the AC system is independent of all that, and has a little radiator called a condenser that's mounted in front of the large radiator you just replaced. I'm guessing since the car is 15 years old that you disturbed those AC lines enough going to the condenser, and the o-rings on those fittings are old and shot and you lost AC refrigerant also known as freon.
if you lost enough the compressor clutch won't even engage when you turn the AC on. you need to get a set of AC gauges and check system pressure of the AC system at the high and low service ports and see how much refrigerant may have leaked out, and diagnose from there.

