Interior water leak fix

[95Escahoe]

So my Tahoe had the common interior water leak would leak from under the pass side dash after rain or washing it, checked the screws, windshield is new and sealed, tracked it down to the hvac vent that is under the cowl on the pass side, you need to remove the wiper cowl, remove wipers and a few screws, you need to remove this metal panel above it on the pass side under the cowl, its held in with seam seal so a putty knife would work to remove all that then pry it out with a screwdriver and youll see the vent , caulk around the side towards the windshield, and side towards the driverside (it is a pain just doing those) and your leak should be fixed, mine is then just replace everything back and re seal the metal panel and your good to go

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[bluex]

What exactly did you use to reseal everything?

 

[95Escahoe]

What exactly did you use to reseal everything?

I used Permatex black silicone adhesive sealant, the first pic has some clear silicone on the panel someone else tried sealing the top but it wasnt leaking there

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[97PROSHOZ71]

I silicones that area and that did not fix it. I might have to replace those screws.


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[95Escahoe]

I silicones that area and that did not fix it. I might have to replace those screws.


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Its such a ty design cant seal the other two sides but hell it worked so its all good, I was about to seal them but ran water on it and they were not leaking tracked it down to this

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[97PROSHOZ71]

Hmm..I'll have to look into it again.


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[95Escahoe]

Hmm..I'll have to look into it again.


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Ya just fill up something with water and start with the screws and go from there

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[ChrisAU]

I silicones that area and that did not fix it. I might have to replace those screws.


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Did you silicone the screw holes and then put the screws back in? If so new screw won't help you. But if not, try that.