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Old 01-26-2023, 05:58 PM   #1
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Front cap leaks

Am I the only one having front cap issues with fourwinds 21 28z ?

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Old 01-26-2023, 06:04 PM   #2
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Donít mean to be disheartening, but virtually all class C motor homes have front cap water issues sooner or later - unless the owner is VERY diligent about checking and resealing seams and penetrations every few months. Itís just a large, poorly supported complex structure and it moves around some while driving. The good(ish) news is that most leaks are pretty easy to find and fix. Good luck.
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Old 01-26-2023, 08:24 PM   #3
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Donít mean to be disheartening, but virtually all class C motor homes have front cap water issues sooner or later - unless the owner is VERY diligent about checking and resealing seams and penetrations every few months. Itís just a large, poorly supported complex structure and it moves around some while driving. The good(ish) news is that most leaks are pretty easy to find and fix. Good luck.
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Old 01-26-2023, 09:26 PM   #4
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Originally Posted by Sullyd59 View Post
Am I the only one having front cap issues with fourwinds 21 28z ?
Read a lot about the Super C cap issues but nothing that I recall on a 28z

What year 28z and what issues are you having?
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Old 01-27-2023, 01:36 AM   #5
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Am I the only one having front cap issues with fourwinds 21 28z ?
From the OP's first post...
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Old 01-27-2023, 03:59 AM   #6
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I've had three class c's and only one had a leak. The one that did leak was a simple fix of resealing the marker lights.
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Old 01-27-2023, 06:07 AM   #7
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There are some common areas that leak on a class c. Marker lights, windows or seam. That’s where I would start check the sealant
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Old 01-27-2023, 01:40 PM   #8
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read a lot about the super c cap issues but nothing that i recall on a 28z

what year 28z and what issues are you having?
2021
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Old 01-27-2023, 01:44 PM   #9
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We had our class C for 3 years and never had a front cap leak. I did check and reseal it every year during my annual roof check. I plan on doing the same thing with our Class A.


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Old 01-27-2023, 01:44 PM   #10
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I've had three class c's and only one had a leak. The one that did leak was a simple fix of resealing the marker lights.
My marker lights are small pressed in style 5/8 or 3/4 rubber is in new condition.
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Old 01-27-2023, 01:47 PM   #11
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There are some common areas that leak on a class c. Marker lights, windows or seam. Thatís where I would start check the sealant
Going back to shop hoping they remove and reseal window with dicor kit .
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Old 01-27-2023, 06:36 PM   #12
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The night before we traded the Super C (this past Monday) while doing last minute cleaning I found water stains along the inside cab headliner over the passenger seat just forward of the side airbag. It had been leaking somewhere and I never knew it. We loved that coach but I am so glad to have it behind us. That huge cap was always the elephant in the room as it bounced up and down going down the road. BTW...the dealer never even stepped inside the unit when we got there. She said..."just park it over there until we finish with your new one...you can move your stuff over then". They never checked or looked at ANYTHING on my trade!
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Old 01-27-2023, 06:45 PM   #13
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Going back to shop hoping they remove and reseal window with dicor kit .
We had a massive leak after we bought ours new and took several trips to get it taken care of. Make sure to look in that area for mold as well. That was the clue we had a problem. Eventually just got the whole roof resealed and then I went and put eternabond over all the Dicor.
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Old 01-27-2023, 06:46 PM   #14
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The night before we traded the Super C (this past Monday) while doing last minute cleaning I found water stains along the inside cab headliner over the passenger seat just forward of the side airbag. It had been leaking somewhere and I never knew it. We loved that coach but I am so glad to have it behind us. That huge cap was always the elephant in the room as it bounced up and down going down the road. BTW...the dealer never even stepped inside the unit when we got there. She said..."just park it over there until we finish with your new one...you can move your stuff over then". The never checked or looked at ANYTHING on my trade!
Ha they probably already have your unit sold so they donít care going to flip it so fast. And unfortunately the next buyer probably wonít notice.
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Old 01-29-2023, 02:57 PM   #15
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Ha they probably already have your unit sold so they donít care going to flip it so fast. And unfortunately the next buyer probably wonít notice.
I am an honest person so that impacts how I can sell or trade a vehicle I have. When I have a defective vehicle it's easier for me mentally to trade to a dealer. Why?? A dealer often is very knowledgeable of quirks and deficiencies of certain vehicles so when they take a trade, they know what the are getting. An individual is usually relying on the "honesty" of the seller to disclose defects and I can't in good conscience represent a POS as a slice of heaven when getting rid of a POS.

When I dumped the omni the accepting dealer sold thor stuff, was very familiar with thor issues, and took it anyway. That said, I did tell them some of the reasons I was upgrading to the Renegade, but they knew anyway. Did that affect my trade value, I don't think so but to tell a private individual what the issues were would have killed any deal?

The dealer did sell the omni to someone who contacted me afterwards. I had given the dealer permission to do that. The new owner gleefully asked me question about it and I gave them my honest opinion and specific issues. I also suggested he join this forum for further info. Whether they did I don't know but in getting information about thor omni quality, he was late to the party. Sadly his gleeful tone declined as the conversation went on.

Especially with RVs, it truly is buyer beware, new and especially used.
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Old 01-29-2023, 05:27 PM   #16
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I am an honest person so that impacts how I can sell or trade a vehicle I have. When I have a defective vehicle it's easier for me mentally to trade to a dealer. Why?? A dealer often is very knowledgeable of quirks and deficiencies of certain vehicles so when they take a trade, they know what the are getting. An individual is usually relying on the "honesty" of the seller to disclose defects and I can't in good conscience represent a POS as a slice of heaven when getting rid of a POS.

When I dumped the omni the accepting dealer sold thor stuff, was very familiar with thor issues, and took it anyway. That said, I did tell them some of the reasons I was upgrading to the Renegade, but they knew anyway. Did that affect my trade value, I don't think so but to tell a private individual what the issues were would have killed any deal?

The dealer did sell the omni to someone who contacted me afterwards. I had given the dealer permission to do that. The new owner gleefully asked me question about it and I gave them my honest opinion and specific issues. I also suggested he join this forum for further info. Whether they did I don't know but in getting information about thor omni quality, he was late to the party. Sadly his gleeful tone declined as the conversation went on.

Especially with RVs, it truly is buyer beware, new and especially used.
Thatís awesome that you gave your permission to contact to you. You would hope that the dealers if they knew a problem existed would actually address the issue so the next buyer doesnít have to I am a skeptic I look at it most of the time someone got rid of it because there was a problem. I am a product of my parents that would drive cars until the wheels fell off. I think if the world had a lot more individuals like you it would be a better place.
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Old 01-29-2023, 07:35 PM   #17
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Thatís awesome that you gave your permission to contact to you. You would hope that the dealers if they knew a problem existed would actually address the issue so the next buyer doesnít have to I am a skeptic I look at it most of the time someone got rid of it because there was a problem. I am a product of my parents that would drive cars until the wheels fell off. I think if the world had a lot more individuals like you it would be a better place.
Thanks when I see virtually new vehicles for sale, RVs for the discussion, my suspicion is immediately raised. Often, maybe usually, the RV had major issues like mine and the owner dumped it. There are of course valid reasons such as realizing it's too small/big for their uses and wanting to get it right for themselves. Covid threw another wrench into it with so many people buying RVs because they were thrown into a panic by the government and their cronies, and bought an RV to "socially distance" themselves. Well reality struck and many of them don't like the lifestyle and the RV lifestyle is grossly misrepresented by the industry. That idyllic RV parked along the pristine lake shore with the 3 kids and 2 dogs running through the meadow, doesn't really exist. CW ad. Disillusionment set in but they are probably so far $$$ upside down they can't get out.

Just like a used car salesman, I don't really trust a used RV salesman either to disclose any known or potential issues and problems. I imagine the next owners of my former omni wished they had called before buying not after the fact.
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Old 02-01-2023, 08:10 PM   #18
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Originally Posted by chunker21 View Post
Thanks when I see virtually new vehicles for sale, RVs for the discussion, my suspicion is immediately raised. Often, maybe usually, the RV had major issues like mine and the owner dumped it. There are of course valid reasons such as realizing it's too small/big for their uses and wanting to get it right for themselves. Covid threw another wrench into it with so many people buying RVs because they were thrown into a panic by the government and their cronies, and bought an RV to "socially distance" themselves. Well reality struck and many of them don't like the lifestyle and the RV lifestyle is grossly misrepresented by the industry. That idyllic RV parked along the pristine lake shore with the 3 kids and 2 dogs running through the meadow, doesn't really exist. CW ad. Disillusionment set in but they are probably so far $$$ upside down they can't get out.

Just like a used car salesman, I don't really trust a used RV salesman either to disclose any known or potential issues and problems. I imagine the next owners of my former omni wished they had called before buying not after the fact.
Most of them don't even know what they are selling, let alone what issues the coach may have!
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Old 02-01-2023, 08:38 PM   #19
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We had a 2018 Z28 and the panels behind the front driver and passenger doors did not have the cap on the bottom of the panel. Water leaked in and both panels had to be replaced. We also had the cap fully removed and replaced to seal it properly at the same time.
Major work but well the cost in the long run.

John & Wanda
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Old 02-02-2023, 04:41 PM   #20
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Cap leak

I have a 2018 Fourwinds 28z. Ours had a leak just above the drivers seat. Apparently there was missing sealant on an outside seem and it was running along a seem on the bottom of the over head bunk. Had it fixed and not a problem since. Now we found a leak behind our bedroom headboard so we will be resealing all of the rear possible entries come spring before we leave for traveling. Just remember there will ALWAYS be issues when you drive a house down roads from bumping and shaking. Hopefully the issues are not overwhelming and you can enjoy your trips. Good Luck!
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