My 99 Dodge Intrepid 2.7L, leaked coolant when I parked at a parking lot, I was in my car, and I had just came from a gas station, I parked, and I got out I noticed underneth the car there was green coolantdripping,
I have no idea whats wrong?? I had recentlty replaced the coolant and thermostat, and checked the two hoses and they looked great,
I dont know why my coolant leaked from my car

 

Is the drain valve closed tight? Can you see where it is comming from? How much are you loosing?

 

Yes I tightened the drain valve, I saw that its was dripping underneath the car, I saw some coolant under the Lower radiator hose,
its was just wet, I took off my radiator from my car and I used a garden hose, to put water in the radiator so I could where the leakage was but I didnt see anything at all

 

The system is pressurized and a small leak w/n be evident with just filling it with a garden hose. I would look around with the engine running and start there. Seeing you just did maintainance I'd start with anything you disconnected. Next, I'd make sure it's not comming out of the weep hole. Another hiding place is your heater box, if it's a small enough leak the condensation drain would get it out of the cab with out you noticing ( other than the smell in the car from the coolant.

You never mentioned, how much leaked out?

 

I put the radiator back today and I put everything back and I looked around with the engine running, if there was leaks, I didnt find anything,
the weep hole is on the water pump, I think theres a cover that needs to be removed, my heater box its ok theres no leaks from there, I dont smell any coolant in my car, I didnt find any leaks..
when it leaked was like half a gallon.

 

The weep hole for the 2.7 is on the thermostat housing. After you put it back together, does it still leak? You originaly said you could see it drip from the bottom of the car, where did you see it?