So this has been my life for the past week. I had a bad leak that was coming in from the fresh air inlet underneath the cowl. It was leaking through that onto the cabin air filter then through the fan and onto the floor where it would puddle up.
The fan does a really good job drying it out. I'll leave it on overnight and put it away in the morning. Takes a couple of days but it gets the job done.
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So I pulled off the windshield wipers to remove the cowl and this is what I found! Can't believe the wipers worked with all that junk in there.
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This rock was perfectly fit into the drain hole on the driver-side drain hole.
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Glued this guy back into place.
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And I just used a scrap 2"x6" galvanized stud that I cut down and glued/screwed into place to drain off any water that could come into the air inlet. This was a quick and dirty job as I needed to get my truck back on the road for work in the morning. It's also covered up so you can't see it anyways. If I had more time, I would've liked to have everything dry overnight and the next day before reinstalling but that wasn't an option at this point. There was an 80% chance of rain the next day (which has now changed to 30% FML
).
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At this point, I re-siliconed a bunch of rubber trim back onto the cowl and then reinstalled it. I probably need to order a whole new cowl assembly because 12 years of sun and use/abuse has taken it's toll on the rubber trim and the actual fitment of the cowl. Apparently there's a replacement TSB from Toyota on replacing these cowls because it's a known design failure...
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