Cab pressure vents leaking water

I have an issue with water coming into the pressure vents on the back of the cab and wetting my carpet. Do you think that I can seal where the vents insert into the cab body from inside the truck? Or do you think this needs to be done from the outside by removing the bed? The dealership quoted me over $1000 to replace the vents. No thanks. I appreciate any insight that anyone can provide.

 

The correct way to do this is to replace the vents which the workshop manual says to remove the bed to access, now you can just unbolt the bed and scoot it back a few inches and access them if your arms are skinny.
Other option is to clean the area thoroughly and apply sealant but it would be better to do this from the outside of the cab, you could silicone on the inside but it won't work as well.
To scoot the bed back you will need 2-4 people depending on how strong they are, its not particularly heavy but its easier with 4 people especially when putting it back in the correct spot when your done.

 

Thanks @joeyv141 I was just hoping to try something that was easier, but I also don't want to goop up everything with 5200 sealant and have to remove that later if it doesn't work. The vents are up high on the 2018, so I may be able to do what you suggested. I would just hate to unbolt the bed slide it back, and its not enough to get the new vents in. I was hoping someone has tried some of these things already to give me some feedback. I'll just try to be patient, but wet carpet smell is getting annoying.

 

I do not recommend being patient with water leaks, dealing with the mold will be way more of a pain then replacing the vents.

 

That sounds like a real pita especially if you’re in a rainy area and parking outside.

I agree about the mold, if possible I’d pull up the carpeting enough to get some air flow and dry it.

Any way to temp-fix it by shoving pipe insulation or pool noodle above to divert water? ….or a large piece of tape that can cover it?

 

It sure seems like there's enough room to seal it up using a tube of silicone caulk and maybe some extension tubing to get to it. At least the top and sides...not sure it is critical to seal the bottom edge.

 

i always leave the bottom edge of various sealing projects unsealed to let gravity take the water away, especially any that might have gotten past the upper seals and made its way to the bottom. only exception is if it appears the water would stupidly enter the bottom.
would need eyes on vent and opening to see if that unlikely situation exists.