Whenever we park the car on a nose up incline and it rains, water drips down the fresh air duct and blower assy to the floor. If we park nose down it does not leak. I removed the outside windshield cowl where the cabin filter is located and inspected the area. Spotted no apparent problem. Got a similiar case? At this point I can only conclude removal of the blower assembly to inspect is next but I really don't want to go that deep if I don't have to. Thanks, Bob.
Make sure there is a rubber seal over the cabin air filter and that is is securely in place when you put the plastic cover back on. the rubber seal is about a foot long, looks like weatherstripping. HTH.
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They are in each corner of the sunroof "cartridge". The way to tell if they work is to open the sunroof and slowly pour a little water in each corner. The front corners should drain down behind the front wheels. The rear corners should drain down in front of the rear wheels.
The most likely scenario is that there are leaves and dirt in the drains, so you want to clear that out. You can use a sturdy nylon line (like nylon fishtape) to gently free up the drains. The front ones are relatively easy to get to from the top of the car with the sunroof open (you can see the holes with a flashlight).
The rear ones are easier to get to from the rear of the car. If you open the panels on the side in the tailgate, you'll see a little black vent/valve with a hose attached to it. Pry that off gently, then feed the nylon line backwards up there and push back and forth a bit, then pour some water down the sunroof to flush it.
Another thing that can happen is that the hose has come apart. The front ones are easy to get to behind the A-pillar trim.
The rear ones have a union right behind the rear doors over the door/rear window. You might have to drop the C pillar trim and possibly the headliner, to be able to get to that.
The water should tell you though. If the hoses are intact, water will come out each corner of the car - then they're probably just plugged.
If this was after a HEAVY rain, you might want to add a new seal to the sunroof too. That will seal it to the roof and let in less water, leaving the hoses more able to drain the water away.
You can also park the car on an incline if you don't have time to work on it now. If it drains fine from the front drains, park the car nose down, even if it's a very little slope, the water won't drip through your dome light. :D
You have to find the leak Have a shop use their Evap Smoke Machine Pressurize the cabin & see if smoke comes out around the windshield,engine compartment,etc Hate to run hose over the car, but you can see it come in,so that is an option,with someone under the dash with a light watching. Check on internet for the issue on your vehicle Call an auto glass place, for advice on what they solve
My 06 was leaking during rain also. It turned out to be the sunroof. There are two drain tubes in the front of the sunroof that run the water down the corners to the ground and two drain tubes that drain water out the back corners. The water would seep around the glass, which is expected, but both of the tubes on the front of mine were plugged, and the water would overflow behind the dash and fill my floorboards. If my H3 was leaning to the left during a storm then the drivers side would be full of water. If leaning right, then the passenger side. I had to open sunroof and blow compressed air into the drain holes to clear them, but be careful, too much air will separate tubes from sunroof and then you will have to remove the inside paneling around sunroof to get to tubes and reconnect. You may only have one side plugged. you can test it by opening sunroof and pour a little water in the small catch pan in the front of the sunroof and see if it drains as expected (to the ground under the firewall on left AND right side). You can see the holes in each corner of catch pan to drain the water. Plug one with your finger, then the other to find the plugged side. Good luck!! Hope this helps!!
We see this often. There is a rubber bulb type molding (similar to a door or trunk seal) that is approximately 12" attached just above the fresh air intake that's in the firewall on the passenger side. Quite often this rubber part comes off and water is no longer diverted and instead pours directly through your cabin filter (if you have one) and into the right floorboard. To correct it, remove the right windshield wiper and right side of the lower windshield reveal molding (plastic cowling). Apply weatherstrip adhesive into the "U" shaped molding and re-apply into place directly above the cabin filter and fresh air intake. Replace the cowling and wiper. Good luck
THE drain holes on your car are to the right and left of the grill under the screen and comes out either under bonnet or behind the front wheel on inside of gaurd a small rubber hose and could be blocked with dirt or mud
When you find it put water hose and blow it back up to the screen (not down) also your heater gets its air from the same grill and if to much water fills up in it the heater could also get water in it
Water goes between the front and rear window and is supposed to go through a trough and drain out of the bottom of the car. often the drains along the bottom (4 very small slits) get clogged and water will back up into the floorboards. just drive a flat head screwdriver in these slits and it will let the water out! (watch out about 2 gallons came out of mine!)
most vehicle have a rubber drain plugs on driver and passenger side under the carpet. keep in mind you don't want to get lots of water under your seat because the computer mod sit right under the seat, if it gets wet it will cost you big buck to replace. good way to check it, next time when you get the next oil change or get the car up in the air, ask the mechanic to look at the rubber drain plugs at the bottom of your car and see if it still there and in good condition. pulling and lifting the carpet its not good idea and lots of work. If the the floor drain plugs looks good then check sunroof if you have one, check the seal around the roof making sure its has a good seal; it may not have a good drain. The last resort will be the fresh air duct from outside in front of the car next to front windshield, which is leaking through the unit. good way to also check the problems is take the vehicle to the car wash using high pressure water gun and spray in it fresh air duct for minute or two and see if its leaking through. hope that help some good luck
There could be water filling in the HVAC intake located in front of the winshield. The drains may be clogged and not releasing rain water. Unfortunately the only way to resolve this problem is removing the entire dashboard and accessing the inner core of the HVAC system.