Water under the carpet - Driver side

[OmahaBravo]

I used flex tape on my driver floor pan access point. Granted, the PO cut a slit in that rubber grommet to pass through a wire. So far, i have not had any issues and my truck has SAT in water deep enough to thoroughly test it

Have you checked to see if the pad is wet towards any direction? If its only wet in the middle then its obviously coming from that grommet. water typically wont travel underneath the carpet and NOT get things wet along its path.

 

[Wildcat82]

I used flex tape on my driver floor pan access point. Granted, the PO cut a slit in that rubber grommet to pass through a wire. So far, i have not had any issues and my truck has SAT in water deep enough to thoroughly test it

Have you checked to see if the pad is wet towards any direction? If its only wet in the middle then its obviously coming from that grommet. water typically wont travel underneath the carpet and NOT get things wet along its path.

It seems fairly dry except for the middle. The back driver's side carpet felt damp up to the back cab wall which is what initially prompted me to pull the back of the cab apart to check the vents.

I did find some potential water drops in the rear driver's side corner above the vents but after throwing a ton of water using the hose all over the truck for about 10 minutes, I didn't find any further evidence. Back carpet is dry but front driver's floor, only in the middle has been wet for several days. I pulled up the carpet and used a carpet blower fan to run under it for a couple hours. Perhaps, one of the rear vents of something was leaking and is no longer. The mysterious part, there is no water or ever was evidence of water in the channels and under my driver's seat is completely dry, so if water started in the rear and worked it's way forward, I would have expected the carpet to be wet the entire run.

Maybe I need to pull the door covers to see if there is evidence water is getting past my block off plates somehow.

 

[OmahaBravo]

It seems fairly dry except for the middle. The back driver's side carpet felt damp up to the back cab wall which is what initially prompted me to pull the back of the cab apart to check the vents.

I did find some potential water drops in the rear driver's side corner above the vents but after throwing a ton of water using the hose all over the truck for about 10 minutes, I didn't find any further evidence. Back carpet is dry but front driver's floor, only in the middle has been wet for several days. I pulled up the carpet and used a carpet blower fan to run under it for a couple hours. Perhaps, one of the rear vents of something was leaking and is no longer. The mysterious part, there is no water or ever was evidence of water in the channels and under my driver's seat is completely dry, so if water started in the rear and worked it's way forward, I would have expected the carpet to be wet the entire run.

Maybe I need to pull the door covers to see if there is evidence water is getting past my block off plates somehow.

Dry the whole thing out. Dehumidifier, whatever you can... get it bone dry.

Then take some blue shop towels and line the whole underneath of your driver front. Run it for a week or so and then take a look at them.
When they get wet, they distort. This should give you an idea of where the water is coming from. If the water is coming from somewhere besides that middle grommet i mentioned, then it has to be enough to wet those towels which will at least give you a direction to start looking.