Gargling sound in dash area...possibly HVAC related?

[Silverado-Hareek]

I've noticed when I come to a stop, there's a gargling sound, almost like slurping water, coming from the dash area. It seems to stop when I turn the HVAC system off so I think it's related to that somehow. I dont' know if it does it while driving and the road noise masks it but you can hear it when stopped and there aren't cars around you whizzing by and making noise. I also don't know if it's related to different blower vent settings like defrost versus face, etc. Has anyone else noticed this? Other than this sound, the system seems to run fine.

[RedMedic261]

I've heard the same noises, no issues to report.

 

 

Sent from my iPhone using Tapatalk

[Silverado-Hareek]

I've heard the same noises, no issues to report.

 

 

Sent from my iPhone using Tapatalk

 

Yeah I mean the heat and AC both work fine. I can switch vent settings and fan speeds no problem. Just a slight gargling sound. I did notice my condensate line yesterday was dripping water even though I've been running the heat and I'm pretty sure the AC compressor wasn't on. Maybe it's just the condensate evacuating the truck?

[wberg]

I noticed a noise on the dash when I had the heater running. It was audible when stopped. I folded a couple kleenex and stuffed them between the windshield and top on dash right in the middle of the dash. No more noise.