Windshield Cowl
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Mudding
Joined: Nov 2016
Posts: 152
Likes: 7
From: SF Bay Area
Windshield Cowl
Do you replace the whole cowl or just try to “fix” it by installing new weather stripping? Wanted to check here before i hack and attempt to do either… parts is not that expensive, just a hassle getting one due to no storage space..
Baja
Joined: Nov 2017
Posts: 5,009
Likes: 966
From: Green Bay, WI
Replacement is best with a REALLY GOOD sealant. I replaced mine with a new one shortly after getting the truck. It warped in a way that resulted in water soaking my HVAC filter. I installed a shield on my intake but now a few years later my cowl is warping again. The sealant I used did not hold. I plan to get yet another new one and used a proper 3M windshield sealant this time. In the mean time you can use cold weather electrical tape. I had that installed for a few months with no issue until cowl replacement. Its black, so you won't notice it, and held incredibly well.
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Mudding
Joined: Nov 2016
Posts: 152
Likes: 7
From: SF Bay Area
Replacement is best with a REALLY GOOD sealant. I replaced mine with a new one shortly after getting the truck. It warped in a way that resulted in water soaking my HVAC filter. I installed a shield on my intake but now a few years later my cowl is warping again. The sealant I used did not hold. I plan to get yet another new one and used a proper 3M windshield sealant this time. In the mean time you can use cold weather electrical tape. I had that installed for a few months with no issue until cowl replacement. Its black, so you won't notice it, and held incredibly well.
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Mudding
Joined: Nov 2016
Posts: 152
Likes: 7
From: SF Bay Area
I guess they add sealant because of the probability that it will warp again in the future? I might put one if I am able to get my hands on some.. but so far here in the Bay Area California, it hasn’t been that wet.. might skip it…
Camel Trophy
Joined: Apr 2009
Posts: 4,244
Likes: 482
From: North of Seattle
I think I used an RVT by Permatex; but I don't know enough about the different brands to recommend one. Honestly, the sealant will:
1. Slow down the warping.
2. Help with the water ingress.
Key thing on #1 is keeping it out of the sun. Key thing on #2 is creating a shield for the pollen filter box so that the water sneaking past the cowl isn't as big a deal.
1. Slow down the warping.
2. Help with the water ingress.
Key thing on #1 is keeping it out of the sun. Key thing on #2 is creating a shield for the pollen filter box so that the water sneaking past the cowl isn't as big a deal.