drain for A/C?
 

Hello

I thank you in advance for any help.Is their adrain for the A/C water condensation that could get plugged up and cause the Water noise behind my dash.If someone could Direct me and my 1997 Blazer4X4 to that area to check for a clog I would appreciateit..

Later
Bill

RE: drain for A/C?
 

The drain is located at the bottom of the HVAC case directly above the frame at the firewall on the passenger side.

However, I believe that it would be dumping water inside the truck if it were there in sufficient amounts to create a sloshing sound. 95% of the time, a sloshing or running water sound behind the dash is air trapped in the heater core. Check your cooling system fluid level. You may also want to flush the heater core to remove any debris that may be in there.