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Old 03-11-2019, 09:05 PM   #1
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Model: Chateau Super C Bunkhouse
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THOR #9451
Water Leaks in Cab

I have a 2018 Thor Chateau Super C 35SB and driving home this week in a pouring rain, I noticed water leaking on the driver's side airbag port, in the center header and the passenger's side airbag port. Water seemed to be dripping all over the inside of the cab. It was very windy and the rain was intense. Anyone know how water can get into the roof of the cab and leak in multiple places inside?
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Old 03-12-2019, 12:08 AM   #2
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THOR #12099
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Originally Posted by Digger View Post
I have a 2018 Thor Chateau Super C 35SB and driving home this week in a pouring rain, I noticed water leaking on the driver's side airbag port, in the center header and the passenger's side airbag port. Water seemed to be dripping all over the inside of the cab. It was very windy and the rain was intense. Anyone know how water can get into the roof of the cab and leak in multiple places inside?
I have a 2015 SB and have heard of bad seals between the overhang and the cab roof. How's it look?
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Old 03-12-2019, 11:10 AM   #3
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"pstandiford" (as best I remember) on this forum had the same exact issue with his 35. Turned out to be the seal as described above...between the truck cab and the overhang. He had water running in at the same points. You can reach out to him as I'm sure he will be of great assistance to you. There have been a few 35 models with this seal issue. As you unfold this issue, make certain the side curtain airbags have not been breached with moisture. That would be very expensive to repair and faulty deployment underway could ruin a good pair of underwear.
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Old 03-12-2019, 04:50 PM   #4
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Yep. We had leaks. There appears to be a channel that runs around the cab. Water would get into the channel and leak whenever we would move the MH. It was leaking multiple places. The seal between the cap and the cab, the molding on drivers side where the cap joined the body, the support for the awning over the slide on the drivers side. They fixed all that and we still had a leak. They got a moisture detector and found moisture on the passenger side even though we had never seen any moisture there. The removed the sofa and the cabinet above the sofa along with the bunk and quite a bit of the passenger side wall covering and insulation. They found that the leak was at the awning bracket. Sealed that and replaced all the bad insulation and wall covering. Finally got it back about a week ago.
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Old 03-12-2019, 07:09 PM   #5
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WOW....that will sure tax your attitude. More places for me to check now JIC. I didn't realize that dance was so long. I don't see one for sale so all must be good now, huh? What year model chassis/body was yours? Mine is a 17/18.
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Old 03-12-2019, 10:06 PM   #6
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WOW....that will sure tax your attitude. More places for me to check now JIC. I didn't realize that dance was so long. I don't see one for sale so all must be good now, huh? What year model chassis/body was yours? Mine is a 17/18.


Yep. 17/18. Iím just glad we didnít have plans to winter in Florida. They did all the work between mid-November and March. In addition to the leaks we had a list of about 20 items. Now that we have it back we have found two problems that were not 100% right but they will work on it when we get back from our first trip of the year.
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Old 03-12-2019, 10:23 PM   #7
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At least it rides quiet and has power to spare!!
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Old 03-14-2019, 10:59 PM   #8
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At least it rides quiet and has power to spare!!


Hey Don, Curious what MPG you are getting. Mine really isnít broken in yet but the best I have gotten is 9.6. Average with about 2600 tracked miles is 8.3. Do you think it will get better?
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Old 03-15-2019, 10:50 AM   #9
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Hey Don, Curious what MPG you are getting. Mine really isn’t broken in yet but the best I have gotten is 9.6. Average with about 2600 tracked miles is 8.3. Do you think it will get better?

I've driven around all 4 states around me and made one trip to Indiana. I consistently run 65 MPH on cruise at 2200 RPM...the power is enough to keep it there. It's not downshifted one single time and drops only 1 MPH on the steepest hills and average fuel economy is 11.8 over about 8,000 miles. I did play around once with it, resetting while moving along and tested it at 70 and 75 on flat ground. It dropped below 10 quickly an I could feel a huge difference in wind resistance. I don't have a lot of stuff packed away in the bays so the weight isn't near the max. I've seen some coaches at campgrounds, etc. packed to the max with everything they own, which makes a huge difference in mileage, especially if you drive a lot in mountains. We will set sail this summer for the adventures of the West. I'll get a much truer test of mileage then.
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Old 03-15-2019, 01:40 PM   #10
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Thanks Gritz. I guess Iíll just watch and hope it gets better. The last two tanks were against some stiff headwinds. Sure has the power though. And handles just great. Even in 15 - 20 MPH winds.
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Old 03-15-2019, 01:57 PM   #11
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If I could change one thing, it's the fuel delivery system. In 2017 Ford eliminated the dash switch that allowed you to manually switch from either fuel tank. Gauges are digital and the engine runs off the front tank only (28 gallons). As it uses fuel, the rear tank (40 gallons) automatically transfers fuel to the front tank. The front tank never drops below 3/4 full. This results over a 300-400 mile run with the rear tank close to empty. The generator runs off the rear tank only and cuts out when it gets down to 5 or so gallons. I always have to refuel before stopping for the night to make sure I have generator fuel in case of a default with shore power, the plan is boondocking for a few days or any other issue. Both tanks have auxiliary ports on them. The dealership said the can run another fuel line from the front tank and install a two-way valve allowing me to use fuel for generator from either tank. So far it hasn't been a real problem but some day I can see having nearly 35+ gallons of fuel on board and not being able to run generator.
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