Really? My ceiling is leaking?!?

[wahoowad]

2019 Trail Boss. Noticed this water stain on the fabric of my ceiling. What the hell is going on here? There is no hole in my ceiling so maybe it is coming in via my external ceiling brake light? I've never noticed any water leaking in before. Really no idea how long this has been there.

 

[newdude]

Spoiler or the rear window.  

[wahoowad]

Any specific things I can look at to see where the problem is occurring? Is there a known seal that often fails?

[newdude]

1 hour ago, wahoowad said:

Any specific things I can look at to see where the problem is occurring? Is there a known seal that often fails?

 

 

Upper frame of the rear sliding window cracks.  

[20L8TSierra24]

14 hours ago, newdude said:

 

 

Upper frame of the rear sliding window cracks.  

Bingo. Can see it in his picture. 

[silveradosid]

no way the water tracked up to the top of the liner, gravity. i would say it is coming from one of the spoiler bolts

[smit303]

Osmosis.

[Gangly]

Spoiler attachment locations.  Pull the spoiler and add silicon sealant around all bolt holes and attachment locations.  There is a thread on this site where a quy walks you through how to do this, step by step.

[Ubiquity]

I can't say with any certainty what the entry point is; but that material certainly appears to have the ability to wick fluid.  Capillary action can be quite strong for some materials.  And no, I'm not a scientist.  

 

 

Edited December 5, 2023 by Ubiquity
Clean up my writing.

[GMCustomerService]

On 12/4/2023 at 9:28 AM, wahoowad said:

2019 Trail Boss. Noticed this water stain on the fabric of my ceiling. What the hell is going on here? There is no hole in my ceiling so maybe it is coming in via my external ceiling brake light? I've never noticed any water leaking in before. Really no idea how long this has been there.

 

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