Floor board damp

[jjb]

Originally Posted by 1der

Before soaking w a hose -



At night place a bright light in the engine bay and also under the cowling forward of the windshield. Go inside the van and look around the pinch seams for light "leaks". Far easier place to start.

Great idea. Thank you.

[arctictraveller]

I've suffered from a wet floor on the drivers side for years. In my case the leak seems to be coming from somewhere under the windshield cowling. In the beginning, I ran a slow hose in that area and immediately saw water entering the foot well. I did my best to seal it up, but with the limited access I was only partly successful. I slowed the leak quite a bit, but I still have a wet floor after a big rain. One thing that really helps is parking with the front of the van lower than the back, that seems to stop the leak completely.

[antmanbee]

I caulked mine today both inside the van and in the engine compartment.
There were areas that appeared cracked with the factory seam sealer.
I will test it tomorrow.
I used Loctite marine caulk. It seems the best from my testing of several different caulks. It is what I used when I reattached my fiberglass hightop.

[DKL]

Had a similar problem with my 1999 E350 Sportsmobile. The fiberglass on my topper is shaped differently - from the front, mine is sloped toward the rear but your's appears to jut forward where it meets the body at the windshield. In my case, both the front seats were getting wet. When driving in heavy rain we would occasionally get water coming in near the top left corner of the front window. Ended up removing the band around the fiberglass topper, caulking as best I could around the base of the topper then remounting the band using slightly larger diameter screws. Think I also replaced the gaskets on the front doors. Sealing the topper was not a simple task but that along with the new door gasket replacements appears to have stopped the leaks.

[maptester]

I had a leak behind the gas pedal in the firewall seam. Sealed it inside and out with Eternabond and sealing coating paint--many coats. The leak had completed soaked the padding under the floor mat. In the photo the gas pedal is removed but you can see part of the brake pedal.