All,
I had posted earlier about a driver's side window leak I'd been chasing since I purchased my coach 9/2013. I did check the front roof top marker lamps, but nothing from there. I'd plugged the front weep holes thinking those were allowing water in, but still had the leak even with light dew here at Pacific Shores.
Finally, and I think someone wrote about this, maybe months or years back, I took off the top trim piece which covers the front cap to sidewall fiberglass seam, and oh boy, the lower 1-2 inches of that seem was missing its original caulk. So, on the '99 Marquis the gutter ends right at the point where that trim piece starts. Water slipping out of the gutter runs right down that piece, and probably enters through the screw holes. Someone had even plugged the gutter on that end but I'd removed that, and did notice that the leak was worsened.
At any rate, since patching that a couple days ago, no more water from the heavy dew, and no water after having washed the roof which produced a lot of water in the gutter.
I think that a lot of times here on the forum I've seen problems presented but the eventual solutions are sometimes not shown. I wanted to go back to the thread where I'd posted this problem, but couldn't find it, so I wanted to post a conclusion which might help others, especially those with 98 and 99 Marquis with Magnum Chassis where the front driver's side gutter water runs right down that trim.
Mike