I noticed this morning that there is a considerable amount of what appears to be coolant (it is greasy but running down hill in the garage so I can't tell the color) on the floor of the garage. It appears to be coming from the pass. side under the space between the engine and cabin. The monovalve was replaced about two years ago and there does not appear to be any leaks there. My fear is that it is the auxillary water pump or worse - the heater core. Any suggestions as to how to test for this other than removing all of the relays and other things and visually inspecting (yes, I am lazy)?
I am fairly sure this is coolant as this happened several days ago as well and the greasy substance dried on the floor but left somewhat of a ghost on the concrete. Also, it appears to do this if the temp. wheel is anywhere above min. on the wheel.