Water Leaking into CAB. - Dodge Cummins Diesel Forum
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post #1 of 26 (permalink) Old 02-09-2014, 07:38 PM Thread Starter
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Angry Water Leaking into CAB.

I live in NorCal and we havent had much of any rain since I bought this truck in Oct. Within the last week we have finally started to get some decent rain. Went to go down town this morning and the back seat, driver side is soaking wet, and there is about an inch of water in the under seat storage compartment. Further inspection revealed water was leaking through the body, Im assuming through a crack in the metal. Interestingly enough, when I bought my 2011 a couple of years ago from Dave Smith, the same thing happened when I went to take delivery, and they had to find a different truck. This is a 2013 with only 7000 miles on it and my backseat is now ruined. The headliner is soaked, seat is soaked, about an inch of standing water in the underseat storage. To say Im upset is a huge understatement. I bought this truck from the dealership in Medford, but Im hoping the one here in Eureka will assist with this issue, even though I didnt buy from them. Any thoughts or advise on this before I delve into this on Monday?

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post #2 of 26 (permalink) Old 02-09-2014, 07:42 PM
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It's under warranty so any dealer in the USA will handle it. Good luck, keep us informed.

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post #3 of 26 (permalink) Old 02-09-2014, 08:31 PM
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Quote:
Originally Posted by warmstrong View Post
Any thoughts or advise on this before I delve into this on Monday?
I'm willing to bet you'll find the source of the leak to be around the CHMSL (3rd brake light) at the top of the cab.

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post #4 of 26 (permalink) Old 02-09-2014, 08:31 PM
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Do you have a sunroof?

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post #5 of 26 (permalink) Old 02-09-2014, 08:35 PM Thread Starter
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I dont have a sunroof. It looks to be coming in somewhere where the weather stripping is on the top of the truck where the body joins together. There is no water anywhere near the middle, just directly underneath that joint. It would be great if it was the 3rd brake light, as that would be much easier to fix. I hope to be able to take it into the dealership on Monday. Its supposed to rain all week, so this is only going to get worse.
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post #6 of 26 (permalink) Old 02-09-2014, 08:41 PM
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I had hoped the seam issue was resolved.

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post #7 of 26 (permalink) Old 02-09-2014, 08:45 PM
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on my 2009 ram 1500, I had two leaks in the back areas you are talking about - it was coming in where the black weatherstripping on top of the truck meets the back window seal. On both the driver's side, and the passenger side.

It took a couple years to start leaking, but when it did - it flooded in. Basically, where that black weatherstripping meets the back window there is a little 'gap' in the seal around the window, and over time the top weatherstrip had peeled away from the window seal leaving a hole. So water was running off the roof of the truck, along that strip, and right down into the cab.

I went and bought a tube of silicone sealant, peeled the top weatherstrip up a bit near the window, squirted a glob in there and pushed the weatherstrip back down. It cured in about an hour, and I haven't had any problems since.

There are a ton of threads on this issue over on ramforumz, which is where I actually found the solution. I'll see if I can't find a couple and post links here.

With it being a 2013 though - I agree with the others here, take it in and have THEM fix it. if it is the weatherstripping issue it will be a relatively simple repair - but I would definitely have them investigate in case it's something a lot more serious.

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post #8 of 26 (permalink) Old 02-09-2014, 08:54 PM
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Like gsbrockman said above -- the 3rd brake light, chmslelssa light or whatever it's called is known to leak. Check that first. The seal may not have set right at the factory. You can unscrew it yourself and check the seal in about 1 minute.

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post #9 of 26 (permalink) Old 02-09-2014, 09:25 PM Thread Starter
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Only problem is, I have a Leer canopy on my truck, so getting to the 3rd brake light will be somewhat difficult to do. Im planning on taking it into the dealership tomorrow and let them figure it out. Hopefully it will be minor. The last time I had this issue with the truck I almost bought, it turned out to be a crack in the body that was not fixable according to Dave Smith. I really hoping that is not the case this time.
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post #10 of 26 (permalink) Old 02-09-2014, 11:26 PM
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Good luck with the fix, I have seen third brake lights leak and run to the side of cab and look like it was leaking from a different area.

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post #11 of 26 (permalink) Old 02-09-2014, 11:56 PM
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My third brake had some minor leakage. One of the first things I checked when I bought her. Had not leaked into cab yet. Cleaned it and put some RTV sealant on top of factory seal. Worked great.
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post #12 of 26 (permalink) Old 02-10-2014, 11:23 AM
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Quote:
Originally Posted by gsbrockman View Post
I'm willing to bet you'll find the source of the leak to be around the CHMSL (3rd brake light) at the top of the cab.
Absolutely. Just took mine in for the same issue. They replaced the Gasket and all seems to be A-OK now.

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