Davans

The water is making its way into a channel on the firewall, under the hood and running out both ends, behind the battery on the passenger side. Leaking down onto the wiring harness that leads back into the floor board. Im just not sure if the tubes are supposed to dump into that channel or if they are stopped up and backing up into it. If I could get to it. I’d cover it up and duct tape it.

I checked the rear drains and they are fine. Does anyone know exactly where the front lines exit? Do you need to pull the inner fenders to see where they Exit?

I actually used food coloring to dye the water. I poured it into the drain gutter in the sun roof. I had the a pillar cover removed and saw it drain through. It also made its way to the ground behind the tire. Seemed good until I got in the floor board with a flashlight and could see the colored water running in. I back tracked it to the channel on the firewall. It’s enclosed so I cannot see the water draining into it. But it drains out on both sides of the channel. It seems to me like it should not be spilling out here. It runs down the firewall, some of it makes its way to the ground. Behind the inner fender. Some flows back into the floor board.

I actually used food coloring to dye the water. I poured it into the drain gutter in the sun roof. I had the a pillar cover removed and saw it drain through. It also made its way to the ground behind the tire. Seemed good until I got in the floor board with a flashlight and could see the colored water running in. I back tracked it to the channel on the firewall. It’s enclosed so I cannot see the water draining into it. But it drains out on both sides of the channel. It seems to me like it should not be spilling out here. It runs down the firewall, some of it makes its way to the ground. Behind the inner fender. Some flows back into the floor board.

Ok. I have tracked it beyond that point. Do you know where the tube ends? I do get water leaking out of an enclosed channel on the firewall, below the wiper blades. The water is dripping down behind the battery on the passenger side and in the same spot on the drivers side. Most of it flows behind the inner fender to the ground but a good bit soaks through the insulation or tracks along the wiring harness right back into the floor board. I’ve pulled everything except the dash. I have no interest in doing that chasing this ghost. I do not get any water running out of the back of the cab. I do see 2 ports in the cab that I believe may be the drains. I appreciate your help.

I don’t suppose you have a diagram of these tubes and the connectors? Any experience with them draining into the firewall?

Ok guys. I’m pulling whats left of my hair out over this one. We have been getting a lot of rain lately. A couple of months ago I noticed my passenger side floor board was soaked. I checked the evap core drain and it was fine. I’ve done a lot of research and have followed the flow of water from the sun roof into the floor board. There are 2 drains in the front of the sun roof that drain through plastic tubes down the pillars. I can’t tell if they’re drains in the rear of the sun roof or not. All water seams to drain out the front and into a channel on the firewall. It then leaks out either side of this channel and spills down the firewall. From there is following the wiring harness back into the floor board. Most of it does drain behind the inner fender and spill onto the ground. But a considerable amount it leaking back in. It seems to me that the water leaking out of this channel on the firewall should have a better drain to keep the water out of the truck. So 1- are there drains in the back of the sun roof that may be clogged cause too much water to drain out the front? 2- is this channel on the firewall the proper place for the water to exit or is something somewhere else stopped up causing the draining at both sides of the channel?