Today the temp. outside was 104 (ontario, Ca.), turned on a/c & 10 min. later, temp gauge was rising fast. Turned a/c off got home & car was leaking something. Opened hood level from radiator ok, but it was apparent that something was leaking cuz there were little spray spots on hoses & under side of hood. Can't tell where it's coming from. There's a metal line running behind rad. that looks like it has that white stuff that will collect on battery. leak is dripping on opposite side of car. Can someone pleez give me an idea what in the world I should be looking for ?