Hi, I have a 1992 Chevy Lumina, and starting about 3 weeks ago, I noticed water vapor coming from the vent at the base of my windshield, and then blowing out of my passenger side AC vents when I turned the AC on. I also noticed that I wasn't dripping any water onto my driveway when parked, even after having the AC on full blast for 20 minutes.
I was able to live with this, because I don't have the time to go poking around under my car. But then, about a week and a half later, I started leaking coolant. And this isn't a small leak, it's almost a steady drip that can form a puddle within 30 seconds. So I started carrying around bottles of coolant and water in my trunk just in case. I noticed that the leak there wasn't coming from the radiator, or so it seemed, but further back, towards the back-middle of the engine.
I'm not very good with cars, although I learn fast and can read and understand the mechanics of it, if I had some direction. Someone mentioned it could be a cracked/damaged heater core. Does this sound feasible? If so, what's the best steps to take in determining the solution? I'd like to figure out before I try fixing it and/or having it fixed, so I don't get ripped off.