I'd pull the carpet. It's not too difficult, have done this several times with previous vehicles to use a pressure washer for a true cleaning.

If you think you keep your carpets meticulously clean, don't ever pressure wash them. The dirty water that comes out, and super clean smell of the vehicle once it has been dried and put back it reveal how gross they get while still looking clean.

While the carpet is out, use the wire dryer on all of the exposed wiring, liberally. You want to displace all water that got under the sheath of the harness runs. A fan, damp rid and dehumidifier will not remove it during a reasonable period of time. The faster you get the water out, the less of a chance of it causing electrical issues down the road. Do the same for any door and dasg components that got wet, like the lamp switch, window switches, etc.

For the seat, remove the cover and pads. If you're pulling the carpet, just set the seats in the sun for a few hours. Pads are synthetic and will dry quickly. You can place towels over the pads if you want to leave the covers out for a few days to dry naturally. Cloth seats are like carpets. They may look clean years down the road, but they aren't. I remove them and run them through the washer every other year once out of warranty. Dirty water every time even though they get a shampoo and shop vac periodically.

I'd also pull the trim along the A and B pillars for a few days, along with the dash kick panel and door panel. Haven't had the door panels in the 150 off, but it's common that noise reduction material on the panels or door will absorb water.

I presume you are running a fan to circulate air inside the cabin along with the damp-rid, dehumidifier, with the windows up. If you're running a large blower to push less humid outside air through the cabin, don't use anything else as it will just soak up moisture from the outside air.

 

They are doing the same thing. I'd argue you're wasting money using the damprid until such time as the dehumidifier is removed.

 

Fill cab full of rice?

 

A few of these should do it!

 

Run the heat and the AC at the same time with the windows closed. The hot air will absorb a lot of moisture and the AC will pull the moisture out of the air. I have a manual system so I can set the Heat with the AC on and put it into recirc. I have mixed feeling but, I think I run it in recirc. The amount of moisture the air can hold goes up rapidly with temperature so If you can stand it run the truck at 95 to 100F or hotter. You should see a lot of moisture coming out of your condesate drain at first and the flow should diminish to a trickle when the truck finally dries out.

 

Hot air will hold more moisture, but when you've got the heat on, the blend door reduces flow through the evaporator. If you want to really squeeze out the moisture, put a heater (or two) into the cab and set the truck to full a/c. Aim the heaters at the wet parts for max effect.

But still slow compared to pulling out the soaky bits and letting them sun dry for a few hours.

 

Neighbors have a very good dehumidifier.
Thats been a godsend.
Only the drivers side window was left open.
There was a FX4 liner in front of the drivers seat which caught a lot. That carpet appeared fine except for carpet right along door sill where I applied healthy dose of baking soda.
The dehumidifier is working with a bounce house blower we had aimed under the drivers seat.
So the first two days the dehumidifier collected 44 Oz! Everything felt and appeared bone dry inside. It was raining everyday and not much sun and it appears like that for a few more days. Humidity in the 80’s so I didn’t feel I could open the truck to air it out.
So I kept things going in the truck with the blower under the seat and the dehumidifier.
Consider me surprised and concerned when about 36 hours later the dehumidifier collected another 36 Oz of water.
While it feels dry, I’m suspecting the seat must be holding more water. So I may go to an automotive interior shop for help.

I also have a question. Since it’s been raining a lot the past few days, is there any way this dehumidifier is drawing from the outside the truck moisture( and how much gets inside.)?

It’s hard to believe that there was another quart of water drawn after the initial 44 Oz.

Anyways, I’ll keep using the dehumidifier/blower until we get to sunny days.

 

If your worried about the seat, if it has heated / air conditioned seats just turn them on and take a ride, it's a good excuse to enjoy that new truck. If your bottom is damp when you get out, you got out too soon.
Look under the bottom of the seat, do you see anything that looks like it could breathe air, the tops vented unless it has a solid piece of solid piece of vinyl across it . Try directing your heater/fan under the seat and let it blow under and through. When you compress foam it tends to release water, compress your seat with a paper towel on top and note if its damp.

I you have not or someone has not already suggested it, look on line and pull up a piece of carpet and see if you can feel moisture under the carpet in the foot wells, in one of those low areas. That trim under where the door closes just pulls up and out if it's like my truck.

Good luck

 

There is not enough airflow for another 36 ounces of fluid to work itself into a closed truck. While that seems like a lot, probably just the lower seat cushion alone can absorb that much fluid, or more. You've also got a soaked seat back, and the floor under it, which channeled water to the carpet and padding under the rubber covers.

It takes 3-5 hours to dry out a carpet that has been shampooed. You've got several magnitudes of order or two greater level of water to get out, it's going to take time unless you are willing to pull the seat covers and pads out and dry them separately.

Have you pulled the edge of the carpet to see if there is water pooled under it?

 

Thanks for your experience. I have not done the carpet. in the beginning I had a FX4 liner on the carpet in front of drivers seat which collected a lot. Carpet underneath appeared unaffected in the beginning except for right at the door sill. It was damp but not soaked so I applied baking soda right along the door sill line. Biggest issue was the seat. It all appears dry now. But still running a bounce house blower( which is very robust) along with a humidifier.
So far daily results have been 44-36-12-16.
It’s been less rain the last two days but still humid( 90%) so unsure if humidifier is drawing something from the outside air even though windows are closed? It feels bone dry everywhere.
I think I might take it to an auto upholstery shop to check out the seat.
edit
The shop I wanted to take it to is so good they are booked up over a week.
But I did open up the plastic on the door sills and felt inside and back under the padding
It does appear dry. Still unsure about the seat cushion. I feel outside leather is all dry now.
Just unsure of innermost part of cushion?