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Old 02-14-2020, 03:18 AM   #1
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Brand: Thor Motor Coach
State: Missouri
Posts: 1
THOR #18010
2018 tuscany water leak in cabinets in front of passenger seat

I just purchased a used 2018 tuscany 42gx and on the first night it rained we had a water leak that was running down the overhead cabinets on to the dash on the passenger side. I climbed up on the roof and inspected the lap sealant and did not see any issues. Has any one had this same issue? If do you know were was the water coming in. Any ideals or suggestions on what to check or welcome. Love the coach it drives great.
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Old 02-14-2020, 04:00 AM   #2
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Brand: Thor Motor Coach
Model: Hurricane 29M
State: Texas
Posts: 772
THOR #11781
Had a leak on the drivers side of my Hurricane. Was a poor seal job of the drivers side window. A little caulk and all was good.
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Old 02-14-2020, 10:41 AM   #3
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Brand: Thor Motor Coach
State: Missouri
Posts: 474
THOR #6903
Check the clearance lights openings
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Old 02-14-2020, 10:42 AM   #4
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Brand: Thor Motor Coach
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THOR #6903
Check around the front AC and satalite
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Old 02-14-2020, 01:00 PM   #5
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Brand: Thor Motor Coach
Model: Palazzo 33.3 34'bunkhouse
State: Alabama
Posts: 2,063
THOR #4735
I believe I have a leak at the top of my windshield, since I have a few water leaks on the inside that run down the window, but I can't seem to put my finger on it.
My windshield was replaced several years ago, and I started noticing this right afterwards, though it probably did not experience any rain for some time. I, at least at first, attributed the leak to a faulty caulking job by the installers. I added more of the same 'black windshield caulk' all across the whole of the window, but the same keeps occurring.

Then, I had a thought: what if it's not the windshield, but the marker/running lights mounted right above the windshield, in the top of the front cap?
Sure enough, I got up there, inspected these, and found that all three had 'moisture drops' within the clear housings, a sign of wetness, or at least moisture being allowed into the light housing, and potentially water intrusion thru and below them into the front cap, running down the interior and onto the windshield.
It's so hard to get up front within the coach to see close enough if that's the case, or not, but I suspect it could be. I caulked and sealed these lights as best as possible, yet I still see water running down the inside sometimes - I'm not sure if I made headway in solving the problem, or just caulked something that was not the problem to start with.

I guess I'm just bound to live with it....oh well.
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Old 02-14-2020, 08:35 PM   #6
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Brand: Thor Motor Coach
Model: Tuscany
State: Texas
Posts: 120
THOR #1808
Quote:
Originally Posted by lwmcguire View Post
Check the clearance lights openings



my first guess, the clearance lights


then the top of the windshield gasket
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Old 02-22-2020, 12:10 PM   #7
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Brand: Thor Motor Coach
Model: Freedom Traveller A27
State: North Carolina
Posts: 14
THOR #17765
If you have a magnetic ally attached satellite radio antenna it could be the culprit. The base plate may be sealed but the little antenna may just be stuck on the base and not sealed.
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