Hi guys, I spent several hours eliminating possible entry point and
it basicly infiltrate by the roof rack assembly. I am pretty tired and wet after the several hose test and have no access to a garage for an other 1 week... (the joy of living in appartement building)... I am documenting the case with picture to share once I am done and 100% sure of the quality of the fix... I don't wish that, but I am sure other guys will have the same issue one day.
Precise point of entry on the water is in the roof rail under the plastic strip on the top of the truck (just over the rear passenger door)... The front part of these plastic roof rail have been easy to remove from the base of the windshield all the way up to the B-Pillar, couple of screws (approx 10 of them), but removing the rest from the B-Pillar to the back of the roof is a bit more work. As the truck is a 2003 and plastic is may be prone to cracking after years of sun exposition I'll go true my service manual and see how to remove the rest and finally stop this major leak with necessary products.
If anyone experience this and as no time to repair, just put some DUCKTAPE over that roof plastic rail front front to back and the leak will stop. My jeep is Silver so is the DUCKTAPE

For the moment it's save me a lot of humidity issues inside the cabin, but for sure this is a aesthetic solution and a temporary one.
I'll keep you post with the final solution and will take picture for you guys.
Rgds,
Sylvain
