I have a 2011 MA. Twice during a very heavy downpoor I have a leak from the passenger map light. I have inspected and resealed the roof but it leaked again. Last week I reversed the three ceiling vents and ran the dash ac not in recurlating then I put a blower in the side window. I created positive pressure. Then I soaped the roof, no luck. I am thinking the front corner drain is leaking in the ceiling. Next week I will try to flush water in the drain to simulate the leak. Has anyone had to get to this drain?? I am going to call Newmar and ask for some production pictures. Ideas??
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We have a 2011 MA while trying to find a leak in the front roof area I did test and look for the front drains they come down inside the front cap they have a duck bill on them. When you open the front end they are at each corner and that's where they exit. Our leak was a bad windshield gasket I put some silicone under the gasket solved that leak. The last storm the sky light above the shower leaked like crazy. Will seal that one when we get back home.
Just the Wife & Me!! & Lily our Yellow Lab
2011 Newmar Mountain Aire 4344 !!
450HP Cummins on a Freightliner Chassis !!