How to go about fixing skylight leak

Ruralgas wrote:
Spend the time and clean all the caulking with a solvent on a small cloth. Inspect the present caulking for cracking, gaps or coming loose and remove suspect area/s, then reapply self levelling Dicor on that area. Apply a good amount for good coverage/sealing. If the gap is large, you may have to apply a couple coats.
Do a very complete inspection and resealing and you'll be good to go.
You can soak your roof to check for a leak or leaks, but like said before, the water will travel. That's why you're much better off to do the cleaning and resealing.

All good advice, thanks. This is exactly what I am doing. Today I re-caulked the suspect area.

The thing that concerns me is that the place I now think was leaking. It was not apparent from visual inspection. It was only after hosing the roof with the camper completely level (to minimize travel) which pointed to this spot. Then I looked and said yes I can believe this could be the problem (that the caulk could be compromised). But it really wasn't until I pulled off the old caulk and saw the warped corner that my confidence increased. In other words, visual inspection alone might not be enough. The caulk was not cracked or peeling. My theory is the warp may have pulled up the caulk just enough for water to slide underneath.

Also that there are some problem spots. Some of the caulking is underneath covers, the air conditioner and I assume the other cover is the fridge exhaust. Today I shot caulk under the air conditioner and pushed it under with a soapy water soaked gloved hand. That is the best I can do.

I suppose there is nothing more I can do except hose it again, go through some rainstorms, and hope for the best. Unless I want to try to find a pressure test which might be overkill.

The camper is now over 6 years old. I suppose this is expected.