02 Suburban Water Leak

[JPVortex]

Hey y'all having a major water intake issue on the interior of my 02 Suburban. It's on the passenger side and when it rains it gets all over the floor. I tried spraying water a couple months ago and couldn't find specifically one area where it was from. I did notice that the foam right below the bottom of the windshield behind the dash was wet, so maybe windshield seal? or the cowl seal is bad and that foam below the windshield was catching some of the water?

But it has gotten dire. Today I tried turning on my heat and the blower motor sounded AWFUL. I took the blower motor out and low and behold its soaked, dripping, and because it was cold there was ice inside of it. So I need this leak fixed now, as I need my heat.

What do you guys think would cause this leak? I know theres that plastic plate under the wiper cowl, but my wiper arms are seized onto the studs, couldn't get them off.

Any suggestions for this whole matter would be greatly appreciated, thanks.

 

[strutaeng]

I noticed the other day my driver's side floorboard was also damp the other day on my 99 Silverado. I had removed the wiper arms and repainted them a few weeks ago, so I didn't want to hammer them out. I bought a tool to remove them and suspect there's something in the cowl that's allowing water to get in. There's a thread somewhere on the GM full-size forum (?) I came across a few months ago and they had a similar issue.

Once it warms up I'll remove the cowl and see what I find.

 

[JPVortex]

I noticed the other day my driver's side floorboard was also damp the other day on my 99 Silverado. I had removed the wiper arms and repainted them a few weeks ago, so I didn't want to hammer them out. I bought a tool to remove them and suspect there's something in the cowl that's allowing water to get in. There's a thread somewhere on the GM full-size forum (?) I came across a few months ago and they had a similar issue.

Once it warms up I'll remove the cowl and see what I find.

Yeah it's very very annoying.

The cabin air filter is totally dry too, just pulled that out minutes ago.