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Old 09-21-2020, 05:06 PM   #1
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Water on Dash

Well, another problem on a relatively new (2017 GT 270) RV due to lousy design/manufacturing. Recently, I discovered on my dash below the window on the inside apx a quart of water after it rains. I soak it up and it returns after each storm. There are no apparent trails. It appears to run internally.

BTW, I had the front W/S R&R by a professional and that is no longer the cause of it raining inside from when I first purchased the GT POS. So that is eliminated from this problem's equation.

I thought it was on the roof where GT left a 6 - 9" gap (missing) in the roof molding where it is supposed to reach the front end cap. I R&R that area and it was wet, but after everything was fixed, problem remains.

So on to the next, hopefully the real cause/reason of the water leak. The top 5 clearance lights. The baking Seal/Grommet is cracked, but unable to determine if that is the problem or not or which one (or all of them) are the problem. So I ordered some Flex Seal and after ensuring the area around the light is clean, I will put a bead around the base of all 5 clearance lights and hopefully the problem will disappear finally.

Any other suggestions are welcomed!
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Old 09-22-2020, 07:22 AM   #2
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A quart of water? I would think with that amount the area leaking would be very easy to find. you may want to look in the overhead area inside for signs of where the water is coming from. Flex seal may work good luck
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Old 09-24-2020, 09:47 AM   #3
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I have the same problem and got tired of taking it back to the people that replaced the windshield to be told it's now fixed(3times)and to still have it leak!

As a test I ran a strip of Gorilla tape across the top of the windshield to seal the weather stripping to the front cap and no more leak! It's been 3 years now and with the color of the rig and the tape you can't see it unless I point it out.
I do remove, clean the glue off, and replace every spring.


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Old 09-24-2020, 10:30 AM   #4
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I put Flex Seal Glue around all 5 Clearance lights after cleaning with mineral spirits and drying with denatured alcohol. I'm waiting for the next rain to check.

I have to replace the Dash. FR uses Strand Board in places between the marine plywood and vinyl - it "melted". Major R&R, but I will make it better than when it left the factory like all of the other 70+ repairs I have done. 60+ in first 6 months.
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Old 09-25-2020, 06:19 PM   #5
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Quote:
Originally Posted by 270S View Post
Well, another problem on a relatively new (2017 GT 270) RV due to lousy design/manufacturing. Recently, I discovered on my dash below the window on the inside apx a quart of water after it rains. I soak it up and it returns after each storm. There are no apparent trails. It appears to run internally.

BTW, I had the front W/S R&R by a professional and that is no longer the cause of it raining inside from when I first purchased the GT POS. So that is eliminated from this problem's equation.

I thought it was on the roof where GT left a 6 - 9" gap (missing) in the roof molding where it is supposed to reach the front end cap. I R&R that area and it was wet, but after everything was fixed, problem remains.

So on to the next, hopefully the real cause/reason of the water leak. The top 5 clearance lights. The baking Seal/Grommet is cracked, but unable to determine if that is the problem or not or which one (or all of them) are the problem. So I ordered some Flex Seal and after ensuring the area around the light is clean, I will put a bead around the base of all 5 clearance lights and hopefully the problem will disappear finally.

Any other suggestions are welcomed!
Mine was coming through the windshield gasket
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Old 09-25-2020, 06:39 PM   #6
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Can you work a hose from one area to another until leak shows up
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Old 09-26-2020, 09:25 AM   #7
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I never tried. I thought it was the window at first, then the junction where the fiberglass nose attaches to body. At year 2.5 I determined it was the gasket. I replaced the gasket problem solved.
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Old 09-26-2020, 09:44 AM   #8
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I never tried. I thought it was the window at first, then the junction where the fiberglass nose attaches to body. At year 2.5 I determined it was the gasket. I replaced the gasket problem solved.
As I mentioned in the first post was the problem leaving the "factory". FR used only 1/8th of the glue required! When I (RV mobile window installer) did a remove, reseal, reinstall, that window leak disappeared along with 80-90% of the Wind noise I thought was from the 2 side HEHR windows.

This a new separate manufacturing defect/problem. Now, that I redid the roof and Clearance light seals, I should be back in business as soon as I do the Dash underlayment with real wood instead of wafer board. I'm capable of doing a better job than FR! Air gaps and loose fit wobble will disappear properly.
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Old 09-26-2020, 01:33 PM   #9
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The fun part of mine was convincing the glass people the water was coming from the seal. I finally just said I'm paying just do it,
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Old 09-28-2020, 11:19 AM   #10
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The water on my dash, and running down the driver side A-Pillar, was from the Passenger side, top seam at the front corner of the roof. I bought some white Flex Paste at the hardware store and sealed the obvious gap there due to some damage, and no more leak. Also I sealed the Satellite hole in the roof with Flex Tape, since I'm not using that, and the cover disintegrated recently. Too bad the rental company that owned this unit before me didn't do this earlier! My A-Pillar garnish is missing and there is some ceiling damage. But that's how I got such a discount on our motor home.
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Old 09-30-2020, 11:07 AM   #11
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The water on my dash, and running down the driver side A-Pillar, was from the Passenger side, top seam at the front corner of the roof. I bought some white Flex Paste at the hardware store and sealed the obvious gap there due to some damage, and no more leak. Also I sealed the Satellite hole in the roof with Flex Tape, since I'm not using that, and the cover disintegrated recently. Too bad the rental company that owned this unit before me didn't do this earlier! My A-Pillar garnish is missing and there is some ceiling damage. But that's how I got such a discount on our motor home.
That was 1 of 2 (front end cap seal) items I did first. After talking to the Glass Tech that did the original R&R reseal, he suggested what I did next which was to apply Exterior painters tape sealing the fiberglass and window rubber seal preventing any water from entering there. With 3 inches of rain yesterday during multiple heavy downpours, I was able to do a great Leak Check and my Dash is 100% dry. The leak is in the window seal.

The big question (to myself) I have is if I should even do a Windshield R&R reseal (AT ALL) or just use the Flex Seal (cartridge gun version) to reseal the Rubber grommet/fiberglass joint after I remove the extra sealant the tech applied when he did it the first time.

Question is if there is a defect in the FR OEM Fiberglass Channel the Windshield sits in and the only real seal is from the external bead of caulking the Tech put on. I may need to do a Bi-Annual R&R on that bead just like the Dicor on the roof requires R&R over time.
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