So I just sat through an hour hail/sleet/rainstorm. Needless to stay my truck was coated with wet heavy snow.

Turned her on to go home and then cranked the defroster. All of a sudden I hear what sounds like water running coming from under dash passenger side. Then I had water leaking on to my splash mat from the bottom of what appears to be the fan housing. Shut it off and went back in to work. Came back out 20min later and fan is quiet and leaking stopped.

How would I get water into the fan housing? Sunroof drain tubes? Curiosity has me going???

 

Could be the moon roof drain or it could be the drain in the cowl. I have had 2 different vehicles have the tubes come off the moon roof drain. I have had 1 drain plug on the drain for the cowl.

 

It is open to the outside.. I've had snow blow through mine, but never any water, even when I put the hose in the vent (in the name of science)

 

Cool thanks for the thoughts. I am gonna check my drain tubes. Never an issue to now but not really and issue.

Yukon - Yeah, you get a little more snow in Marquette than in Tacoma,WA.