Gurgling Sound, Gurgling Sound coming from under my hood. Options

[5150EVH]

I recently noticed that when I come to a stop, I hear a gurgling sound coming from behind my firewall. I only hear this sound hear and there. I noticed too that when I turn my heat on the sound goes away....however, I smell a whiff of antifreeze when I first turn on the heat. I have been in the automotive business for 4 years (manager at Autozone and with CarQuest) and know that usually when there is overheating or this type of symptom and you turn your heater on and the problem goes away...its usually the thermostat. I was just wondering if anyone else has had this problem or if anyone could please give me some advice. I would greatly appreciate it. Thank you.

[GriffGirl]

There's probably no visible leaks or spills because the coolant is dripping onto a hot surface and burning off before you can get to it. I've had this happen to me countless times... eventually the hose just bursts at some terribly inopportune time, no doubt on a really hot day, and there you are trying to coast to the nearest parts supply store.

Drive it around till it's warmed up and then drive it home, quickly pop the hood and... listen. You will likely hear the drip-drip-sizzle of a small leak. Check your upper and lower radiator hose (since the sound is coming from the front of the engine bay) but also check those smaller hoses by the firewall. It's leaking from somewhere... you just have to listen and sniff around for it. Maybe even watch and listen under the hood while the car is running. (although it's easier when the warm engine has just been shut off.)