OK, so, my VX has been sitting all night in the cold garage.

The level of my fluid in the reservoir has dropped almost 3/4" since yesterday!! But, there is no sign of a leak??? No puddle, no wetness underneath, nothing!

I opened the radiator cap, and fluid is right there at the top, nice and green. Since the truck has been sitting for 12 hours, could the pressure drop and thus cause the fluid level in the reservoir to drop? I guess I will find out in a little while after I drive around for a bit.

One thing I did test: I stopped running the heat (not to my wife's liking, but) and it seems the leaking has stopped or is going somewhere I cannot see at least. I guess I should try blasting the heat and see if more fluid comes out. I know you said I would notice a smell or wetness in the truck if it was my heater core, but...????

This is frustrating....

Bart