After it rains water is in trunk Nissan Altima

Question edited for clarity, add maker.
Question moved to model category.

Based on our research the RAV4s with wet floors are usually, but not always, clogged sunroof drains or drain outlets. Other RAV4 owners found that the body trim surrounding their windshield or even the fender panel had degraded and failed, allowing water to seep in during heavy rain.
Aug 12, 2015

If the passenger floor of your RAV4 is wet - here is the fix

Torque News https://www.torquenews.com > if-passenger-floor-your-r...

Wet Passenger Floor

Toyota RAV4 Forums https://www.rav4world.com > ... > 4.3 Mechanical
Sep 26, 2015 - After a few years, some foam will start to stiffen up and allowing water to seep past them allowing the water to pool around the opening.

Water leaking passenger side. ' Toyota RAV4 Forums
Apr 20, 2021
Water in passenger footwell ' Toyota RAV4 Forums
Jan 24, 2018
water in driverside foot well. ' Toyota RAV4 Forums
Mar 9, 2018
Water Leak - passenger side, help drying carpet - RAV4 World
Mar 15, 2018
More results from www.rav4world.com

..

Don A has an excellent answer, but if you have a sunroof, that is more likely the reason. The pipe runs down between the door pillar and the windshield and there is often a join there which can part. Be careful with compressed air as it can blow joints apart.

Water puddling on passenger side?

Nissan Forum https://www.nissanforums.com > threads > water-pudd...
Dec 19, 2004 - Hi, I have a 94 sentra xe and lately ALOT of water is on the floor on the passenger side. The sides and under the door are not wet, where ...

Wet Floor, Passenger Side ' Nissan Forum
Nov 8, 2014
Water leaking during rain - Nissan Forum
Jul 19, 2007
Water leak behind glove box (need help) - Nissan Forum
Jul 31, 2019
Water leaking inside car - Nissan Forum
Dec 21, 2002
More results from www.nissanforums.com

My 2022 Nissan Sentra is leaking water into the front

JustAnswer https://www.justanswer.com > Nissan Repair
May 28, 2023 - I noticed water leakage about 1 month after I purchased the car. It had rained and there was puddle on the carpet and weather mat on the front ...

1 answer · Top answer: Hello and welcome to JustAnswer! Thank you for choosing us to answer your

Hunting water leaks is a pain in the tailbone job to do. I'm assuming yours has the jack in the floor of the trunk, under the carpet.
The spare wheel well is the lowest point in the trunk so the water will collect there regardless of where the leak is. Start with the simplest tools, a flash light and the palm of your hand.
How much water is collecting and how fast does it fill up? Rain water coming up through the floor is unlikely unless the floor is damaged.
First take everything out of the trunk that wasn't in there when it came out of the factory. Take a really good look at the carpet and trunk side liners. Use the palm of your hand and feel the floor carpet for wetness. Your feeling to see if it is wet in a particular area. Using the flashlight look for darker patches as carpets often darken in color when wet. Move to the rear of the trunk and feel the liner on the back of the rear seats. Next run your hand over the side panels where the wheel arches are. This will give you clues as to where the leak is possibly coming from.
If the whole trunk carpet and liners are bone dry the leak is from under the car.
All the doors, the trunk lid and the sun roof are fitted with rubber seals to stop rain and road splashes getting inside the vehicle. Over time these perish and start to leak. Run your hand around the underside of the rubber seal the trunk lid sits on when closed. This is the most obvious place it will leak from. You can do this on each door as well because water can travel a large distance before it finds somewhere to create a puddle. A Sunroof can also leak but they tend to cause puddles in the foot well.
If you get a few dry days you can test for leaks with a hose pipe. Keep the trunk closed and make sure the inside of it is totally dry. Remove any spray nozzle from the hose so it flows at regular pressure. Carefully aim the water so it only flows over the trunk lid. Let it flow for a minute or two trying not to soak the doors at the same time. Turn off the water and leave the car alone for about 10 minutes. Wipe off any excess water on the trunk lid, open it and see if its now wet inside the trunk. Yes? the trunk seal is leaking. You can use this method for the doors and sun roof as well. Door and trunk seals are usually just a 'Push on/Pull off' fit so you can easily change them yourself.

Hey Grady..
There are few things that could cause the water intrusion... Is the carpet in the front floorboard wet?.. ..Has it rained recently? This will rule out window seals leaking? Have you opened the trunk and checked to see if water is in the trunk? OK..IF it has not rained, no water in the trunk, AND the front floorboards are wet, then the heater core is leaking...
Do It Yourself and DIY Auto Repair by ChiltonDIY
Free Automotive User Manuals ManualsOnline com
https://haynes.com/en-us/search?query=2000%20Ford%20Crown%20Victoria

Grady.. sounds like its either the window seals or the door seals.. check for damaged door seals, cracked window seals..

Try cleaning out the small holes between your rocker panels and the sub-structure. They can be barely perceptible, but if you look carefully under the car, they are actually little channels that direct the water flow out of the car that leaks on during heavy rains. Use a coat hanger or other wire to re-open them and let the water out. If not, the floor will continue to get wet until the rockers rust out. Other causes may be seal leaks behind the glass, or trunk seal leaks especially in sedans.

You can also have a leak around one of the tail lights, or the rear window seal.
You may need the help of a good body shop to find the problem.

have you checked for holes in the floor. the shock towers rust on those. I had a 1995 that had rust in the truck floor next to the rear seat

Most of the problems come when its raining and if its not being driven and water still comes in then its the bonnet rubber and if when its being driven then its due to the rear wheel throughing up water under wheelarch and somewhere theres a crack in the weld or somewhere and it will find its way in..
So if not using it clean it out and when rain stops look inside no rain no leak Have a goodday

Mother nature is too slow in finding leaks. Have someone small get in the trunk with a flashligh and watch as you run a hose over everything. LET THE PERSON OUT!