I have a 30' 2009 class C Winnebago access/chalet on a Ford 450 chasis. Twice in the last year I have driven through torrential rains with the windshield wipers on high. this results in a moderate l...
If I'm reading it right, it's coming from the fabric at the top of the windshield (in addition to lower down)? I'd be suspecting a leak at the cab to cabover junction or in the cabover itself (corners, clearance lights, windows).