Originally Posted by My2ndCar-My1stG6
So I've been experiencing a leak lately. Pretty sure it's the coolant as the other morning I went and checked on fluids and the coolant was at the bottom of the tank, <snip>
It's clear liquid so I'm a bit confused as the coolant is orange...?
I would suspect heater core, too, but, since the liquid is clear, I think what's being seen dripping is condensate from the AC evaporator. (But a heater core leak would drain in the same place.)
What year is the car, and what motor is in it? The LZ4 3.5L V6's have a cross over pipe between the heads on the passenger end of the motor. The gaskets on it are a common source of coolant leaks. I had to replace them on my 2007 G6.
If it's the 3.5L LX9 V6, also used in the G6's, I might suspect the lower intake gaskets. I have no experience with that particular motor, so I can only speculate. But it's based on the earlier 3.4L LA1, which was known to have issues with the lower intake gaskets. (I had to replace those on both my LA1 equipped Impalas.)
That said, before doing anything, as jayram1408 indicated, get the cooling system pressure tested to isolate the leak. Also, you can check your RPO sticker to determine which motor you have.