I found after the cold snap of below zero temp we had anti-freeze on the floor of the garage, I wiped it up and yesterday I found a puddle again. I looked in the radiator and it's down halfway, I see anti-freeze on the the valley pan also. I had changed the maniflod and I usually use silicon around the water holes, I didn't this time. Hoping it's nothing major, does it sound like loose hoses?
That's where I would start. That worked to stop my last coolant leak. It was coming from the heater return hose off the passenger side cylinder head. A couple of extra turns of the socket wrench and Voila!
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Did you check your thermostat housing? That's where it leaks the most often. Warm the car up to get the water hot and pressure up and then you should see where it's leaking.
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I will be looking into it tomorrow, I worked last night slept most of the day away should be the last night work, Sunday I go back to working days. So it does sound like something came loose, My thermostat housing was leaking last year, It needed to be sanded flat and it stopped, might be doing it again? May have to find a new housing.
Best thing in the world for finding coolant leaks is a pressure tester. You can pump it up to 16 psi and feel around for the leaks. When the car is hot the leaks just evaporate.
I fought a leaky thermostat housing for years and finally got rid of the gasket and just used water pump silicone sealer. I found when using a gasket that the aluminum housing just bends as you torque it and becomes curved and then leaks.