1999 Yukon SLT 4 door water leak

[strutaeng]

My 2000 K3500 OBS crew cab has this leak as well. I hardly ever drive it so I never remember to chase it down and fix it. :-(

 

[YukonGTmaster]

I drilled a small drain hole in my blower duct, until I was able to fix the leak. Whenever there was rain and cold, I could hear the fan squealing, especially when I turned left. Until that fateful day when the blower drowned, and smoke came out the vents. It fried the blower, and melted my hvac control connector.