nvman21

I don't really know how to exactly explain my problem. I have a 1999 RX 300. When it rains moderately hard, water begins to accumulate on the passenger side floor, no where else. I cannot find a source of this water, as nothing in the car is wet but this area. And I am not talking about a little bit of water, this morning I came out to a puddle of water that was like 1/2 inch deep. I honestly am stumped as to what would cause this on my passenger side only. Is there something clogged I could easily fix?

Does anyone have any insight as to why this would be the case? It clearly is getting in somehow when it rains, but I cannot figure out how as every other area is dry and there is no splashing/arterial spray anywhere else.

Thanks for any help in advance

Bobster999

sounds like the sunroof drain tube on the front right side is clogged up.

nvman21

So I am not the greatest with cars but can fix basic stuff. Is this something I would be able to check and fix? If so, how do I do this?

Thanks

ATLs460

Pressurized air through the drainage line. Crawl under and look for a thick clear plastic tube sticking out of the underside. There are several front and back IIRC


Oh and also don't let leaves and debris gather under the windshield cowl. That's how they get clogged in the first place.

carguy07

How does debris under the windshield cowl get into the sunroof drain tubes?

Bobster999

that usually only works with clogged AC drain tubes. It wont work on sunroof drain tubes because at the bottom of the each drain hose is a "plug" of sorts. you will need to remove that plug by cutting it or pulling it out to release the water. I have not looked for the drains locations on the RX, but that one should be in the far upper corner. you will need to remove whatever is in the way. like i said, i have not looked at mine. parking under trees is what causes this over time.

Bobster999

Eric was slightly confused. Thats how the AC drain tube gets clogged. The leaves run down the cowl into the bottom of the evaporator housing thus clogging the drain tube. then the water backs up in the housing and overflows onto the floor.

ATLs460

Look under the rear behind the tires, there's a clear tube coming down from above.

BearsLexus

Thanks all, I'm having this issue too... I'll look into this!

Bear

napolion

I have the same problem today there was too much rain and the leaves of the trees at the front glass .