Interior water leak from roof - Dodge Cummins Diesel Forum
2010-2012 General Discussion General Chit Chat About the 6.7L 4th generation Cummins - NO ADVERTISING

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post #1 of 17 (permalink) Old 01-10-2014, 08:01 PM Thread Starter
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Interior water leak from roof

Got in my truck this morning and thought it smelled a little damp, mind you we had biblical epic rains here yesterday.

Thinking that maybe a window was left open I started checking everything, all windows were closed. I worked my way around the truck and found the carpet wet on the passenger rear side. Following the water up I noticed the rear seat back was wet and water was dripping down from the headliner.

I got up on the running board and checked the roof thinking it had to be the roof lights. When I looked up there, I noticed the small black satellite radio antenna above where the leak was. When I touched the antenna a bunch a water poured from the headliner on to the seat back.

Truck is now at the dealer, will know more next week. They promised to get the interior dried out and leak fixed.

So- has anyone else had this problem???


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post #2 of 17 (permalink) Old 01-10-2014, 08:12 PM
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Same issues but ended up being the third brake light. Thought it was satelite antenna, made sence it would be the antenna, but 3rd brake light it was. Gasket dryed and no compression. Gasket was part of the light so removed and used 3M weather strip. Tired of the dealer wasting my time. No more leaks. Keep that option open.
Good luck.

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post #3 of 17 (permalink) Old 01-10-2014, 08:42 PM
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Mine was third tail light as well. If they say it was something other than that, expect it to get wet again.

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post #4 of 17 (permalink) Old 01-10-2014, 08:50 PM Thread Starter
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Now you guys have me thinking that when I touched the satellite antenna, it might have caused the antenna cable to push on the water soaked headliner...

I didn't want to mess around troubleshooting the leak, I had a few minutes available for someone to follow me to the dealer and give me a lift back home.

Are you guys finding the 3rd brake light gasket damaged or not installed correctly? Did a new gasket fix it and can you purchase the gasket by itself or do they sell you the whole 3rd brake light assembly?

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post #5 of 17 (permalink) Old 01-10-2014, 09:56 PM
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Read post #2 again.

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post #6 of 17 (permalink) Old 01-10-2014, 11:39 PM Thread Starter
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Quote:
Originally Posted by N of 60 View Post
Read post #2 again.
Is that a rubber gasket like the roof lights or a foam gasket?

If it was the 2011 in your sig, that's not very long for a gasket to go bad...

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post #7 of 17 (permalink) Old 01-10-2014, 11:51 PM
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Quote:
Originally Posted by CDrake View Post
Is that a rubber gasket like the roof lights or a foam gasket?

If it was the 2011 in your sig, that's not very long for a gasket to go bad...
It's a wimpy foam gasket with no memory and dried/ brittle. 3M makes a closed cell hi density weather strip that is 3/8by3/8". I scraped off the old one and applied the 3m. Joint at cntr bottom.
2 summers, 2 winters now.
Some stuff you must do yourself warranty or not.

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post #8 of 17 (permalink) Old 01-11-2014, 12:20 AM
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Pulled mine and put some rtv sealant on gasket around light.

Others have had the light assembly replaced under warranty.

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post #9 of 17 (permalink) Old 01-11-2014, 12:37 AM
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Since the 2nd generation trucks it has always been the brake light gasket as the problem.


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post #10 of 17 (permalink) Old 01-11-2014, 01:08 AM
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my sat antenna gasket was leaking soon after I picked my truck up as well the dealer that fixed it said he does at least one or two a month, they replaced the gasket and put some silicone on it and I have had no problems since.

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post #11 of 17 (permalink) Old 01-18-2014, 10:50 AM Thread Starter
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Got my truck back on Monday, they had to tighten the sirius antenna on the rear passenger side of the roof which was loose. They also replaced the 3rd brake light assembly.
Haven't had any rain since but I'll be keeping a close eye on it.

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post #12 of 17 (permalink) Old 01-18-2014, 02:26 PM
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I had the same thing in my old ford and it turned out to be the third brake light.
The plastic piece that the gasket sits on had warped just enough over time that when it rained hard it would rain inside the cab. Found this out after putting in 2 new gaskets and still no fix so a little RTV and it was fixed
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