omar804

i bet that's the problem i have, i have 2002 lexus es300 with soggy rear seat carpet when it rains. i'm gonna check this out tomorrow

Ksilva8182

where exactly is this ? Behind rear seat ???

LexyLoo

Hi, I am following all the info posted here, have the same issue a swamp in the backseat floorboards. Pulling stuff apart to try to 1st) determine if drain tubes are working/not clogged...however I keep wondering...even if they WERE clogged, how would the water end up on the floorboards? it seems it would back up to the source, the sunroof, and leak through it, like down on your heads...but there is no evidence of water in the car except for the floorboards. I'll keep at it but wondering about this water and where else it travels- I found the tube in the trunk and all around trunk and wheel wells is bone dry. water is on both sides of rear, and front passenger. I kept the air off for a week and it did not get wet. Drove fast through a rain storm last night and the back floor boards were soaked, more the front. any suggestions welcome! I cannot afford to take it to a dealer or mechanic just want to stop the leak and avoid mold. thank you!

mferg02

If you want to diagnosis where the water is coming from, a drive through car wash would most likely work for you. Take it through and start checking right when you get out.