Update:

I fixed the cracked hose connector, filled her up with coolant again, let her idle for 15 minutes, then gave her a solid run around my "circuit".

Got home. Leaking worse than before - again. It seems the more I fix it, the worse it gets.

Finally: I decided I had to do some investigating while the engine was hot. I found out that my flange and everything connected to it were fine. The leak is coming from the firewall itself. At the bottom. Right above where the cat meets the exhaust pipe (it's over the pipe, but less than 6 inches from the back of the cat.

What's even more confusing is that it's just water. Not a 50/50 mix. Just water. No coolant at all.

Any ideas?

Thanks

 

Is it hot and humid while you're driving? Got the AC running?

 

**yes it is hot and humid.

it's not the coolant flange, or anything connected to it.

I decided that I had to do some investigating while the engine was hot (cold wasn't helping). I found out that my flange and everything connected to it were fine. The leak is coming from the firewall itself. At the bottom. Right above where the cat meets the exhaust pipe (it's actually over the pipe, but less than 6 inches from the back of the cat). What's even more confusing is that it's just water. Not a 50/50 mix. Just water. No coolant at all.

After about a half a dozen test drives, I finally got it to stop leaking.........but here's the really strange part:

Seeing as how I've been trying to chase down a "flange area" coolant leak, I've been test driving/idling the car with the heater on full blast - never the A/C (for obvious reasons).

After all of my investigating/testing so far today (about 4.5 hours worth). I still haven't lost any coolant what so ever, so I thought "Why not try testing with the entire climate control system off?" (I knew I had full coolant anyway, so no trapped air to worry about).

I ran that bitch hard. Making sure I put maximum stress on all systems (w/o being a fool and breaking ****).

I pulled back into the driveway. Sat and watched........NOTHING. Not a single drip. What the hell does that mean? Does the heater share the same core/evaporator with the A/C? Why would water leak when the heater is on when a.) My heater works fine and blows hot as hell. b.) I'm not loosing any coolant and c.) I recently had my A/C serviced and it blows cold as hell.

I can't wrap my mind around it.

Can anyone help?

Thanks