So I had a problem with a weeping waterpump and thermostat, fixed those but I cannot see where my major leak is coming from. I have felt with my hands and shined a light, but cannot see any leaks. I can hear gurgling coming when I add a half a gallon of coolant and seems like the leak is somewhere in the lower half of the car. Anyone have any ideas?

 

There's a number of plastic coolant pipes and rubber hoses known to be common failure points. Once one leak begins, it's time to start replacing all otherwise you'll be repeating the same labor over and over again.

 

Pull the skid plates and grab a flashlight. Behind the engine, on top, is a sneaky one. Look on top of the transmission bell housing to see if it's leaking. Good luck.