Dash leak 2005 yukon xl, Help

[Pikey]

I picked up a yukon xl monday. today was the first day it rained and I noticed a puddle on the floor of the passenger side. It is water, not coolant. The AC has not been run. It only happened today in a heavy rain. I pulled the cover down and see that it is actually leaking out of the hole where the blower resistor goes. (the resistor and blower motor were replaced the day I bought it by the seller, now I know why) Any ideas where this water can come from? Do I need to pull the grill under the wiper arms and look for something there? A plugged drain? Where are the drains located up there? What do I look for? I could really use help on this one. I dont want my new truck to start getting moldy. Thanks

[Pikey]

Oh, figured out what the problem was. It was a cover under the cowl. The seal was broken and missing. I took it off, cleaned it up, put some silicon on it and replaced it. Here are some pictures of the cover and area.

[rileyjr16]

Glad you got it fixed their Pikey