Okay guys so I have a problem I just bought a used 2012 Nissan Maxima with 76,000 miles on it cars in mint condition I got it home and I realized there was a ton of water into the floorboards on the driver side I drilled a hole into the floorboard just let it drain out and realize that the drain up by the sunroof is plugged I poured a little bit of Water by the drain and the sunroof the car was fine I drove it a hundred miles after I purchase it now the dash doesn't work the cluster doesn't work mileage tachometer fuel gauge nothing is working it was flickering for a little bit and the car wouldn't start right away with the button could water have gotten down by the fuse panel any help would be greatly appreciated

 

Sounds like you have two or three issues at play here. May have a dead alternator. Check the alternator and battery health first. Replace if needed.
Unclog the sunroof drains.

 

Good advice from The Wizard. That is the best place to start. I can tell you that I had a taillight that filled with water that would cause my VDC/ABS and cruise control to malfunction so some of these systems "May" have water still around but start with the Wizard's suggestions and then let's see what is remaining.

 

Not sure what you consider to be a ton of water, but if you press you fingers on the floor carpet and you visually see water, not just wet fingers, then you have a ton of water. Personally, I wouldn't have just drilled a hole. Yes, it would have drained most of it, but there is still water under the carpet. If I were you, I'd remove the carpet and lining and inspect the floor. Let the floor, lining carpet and anything else completely dry out. If not, you are asking for trouble down the road. Ever hear the stories of people with flooded basements with up to 1 foot of water? Even after the water is all drained away, you have to gut all the walls 2 feet from the floor, remove all the insulation and let it completely dry or mold will set in. I'm not sure about mold under the floor board carpet, but I know it will rust in no time.

 

Agreed, especially with the hole or holes being drilled through the floor board. I would've used a wetvac first to suction as much water as possible, and then remove the carpet and lining to let it dry out. Some floor boards have a plug or 2 that can be popped off to drain water. Never would I compromise the floor board by drilling a hole or holes through it, exposing edges of raw medal to moisture, and giving access for water to get in through the holes in the future.