Drove the car yesterday, parked it last night in the garage. This morning there was a substantial amount of coolant on the garage floor. I made careful note of the area of the car where the leak was coming from. I then backed the car out of the garage and let it run for several minutes. No leaks were noted so I jacked up the right (passenger side) front tire and placed the tire on a ramp for safety. I then climbed under the car to look around. The coolant on the garage floor was approximately 24" back from the right (passenger side) front tire and approx 12 - 15" inboard.

I looked and looked and didn't see any signs of any coolant leaks! I then took the car down off the ramp and checked the coolant reservoir; it is at normal level and doesn't appear to have lost any coolant. I then took the attached photo with my digital camera and then cleaned up the garage floor and drove the car back into the garage.

I'm thinking of buying an ultraviolet leak detection kit to try and locate the leak as it concerns me. Any ideas on where the leak could be coming from?

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What color fluid on the floor? What color coolant in the car? if clear it could be condensation from the climate control system. Check aux water pump and under pass front carpet could be heater core.

I use Amsoil Coolant mixed 50/50. It has a yellow tint to it and is easily recognizable. I felt the fluid on the floor with my hands, it was, without a doubt, coolant. I checked the carpet on the front passenger side yesterday, dry as a bone.

UPDATE: I just drove the car for about twenty minutes, came home and looked under the car and saw NO LEAKS. Weird.