2005 Silverado water in driver side floor. Help!

[rippyro]

I've searched all over for someone with a similar problem but I can't seem to find one. Now to the problem.

 

2005 Silverado CC Z71

 

I noticed some moisture (similar to condensation) underneath my driver side floor mat. I thought I had maybe got some water in there from my shoes after fishing, but noticed it a couple more times when I hadn't had wet feet. We've had a ton of rain over the past week and I checked under the floor mat today and there was quite a bit of moisture. The carpet was not saturated, but it was slightly damp. I pulled the carpet up and the pad underneath was pretty well soaked. I noticed a decent amount of water along the door underneath the plastic kick plate. I followed it to the front just below the hood latch. I did not notice a trail of moisture up behind the hood latch so I don't think it's running over there. I also lifted the black plastic underneath the pedals and noticed the bottom of the foam was soaked, but up higher there was no moisture so I'm thinking it's not leaking from the firewall area either. The center hump is dry as well. There is no moisture to note in my headliner. No other parts of the truck are wet not even the driver side rear floor. I haven't found any trails of moisture anywhere and it seems to be saturated from the kick plate to the driver side floor. Any ideas or experience is greatly appreciated. The rain is not letting up any time soon and I'd love to eliminate any more chance of mildew, mold, or rust forming. Thanks in advance!

 

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[sefiroxx]

Red pair and black wire look suspicious. Water rhereb would follow channel down, spread out, then possibly wick part way back up

[rippyro]

UPDATE:

I pulled up the rear trim and found a ton of water in the channel underneath the kick panel and some soaked carpet along that same channel. Then I noticed some old looking water damage to the rear of the headliner (possible third brake light leak). It looked like the water was coming from lower though so I pulled off the trim and removed the rear cab vent. The plastic housing inside of the cab had a ton of water. I park with my front end down hill normally and I think the water has been flowing from that rear cab vent housing through the kick panel void space, and into my front floor board. I will be getting new vents and making sure everything in the rear is sealed properly. Will give an update when all is done whether it's fixed or not.

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