Passenger Side Wet Floor ?

[JSchnoor]

We recently bought a used 2007 GX 470 a month ago. We have noticed twice now that the front passenger floor board is damp occasionally. Any idea as to what could be causing this? Anything in particular to check under the hood? Has anyone else experienced this? Thanks in advance!

[eugene.s]

JSchnoor,

I wouldn't expect anything under the hood but would check two things:

1) that the car has not been drown (e.g. via Carfax, Carcheck, etc.)

2) that the driver door assembly is OK. The easiest would be to check that everything which is there between the front passenger door and the trim is in place between the driver door and the trim. In particular, there's some plastic part between a door and trim -- if the door was repaired but the part was not installed, you will exactly get the floor wet and it would not be unusual to see a lot of ice/snow in the door clearance.

[13IS250C]

I always think heater core. Does the water have a smell?

[sha4000]

Pour some water on the sunroof and see if it leaks. Maybe the sunroof drain hose is clogged up.

[13IS250C]

That's a good idea. Maybe go through a touchless car wash with a passenger and look like crazy at all openings while the water is spraying hard.

[RudyZ]

Had a similar problem with a used Navigator that I purchased. Went through all the prior recommended troubleshooting. No luck.

Went to an automobile glass business in town. They popped the surround trim and inspected the sealing bead on the windshield perimeter. Whoever had replaced the windshield prior to my ownership did a poor job of sealing the glass.

Couldn't repair so a replacement windshield did the trick for me.

Good luck.

[hankinid]

If it's water and not coolant, I would suspect a blocked A/C drain.

[eugene.s]

JSchnoor, have you isolated your problem?

[LXPearl]

I had a similar problem that turned out to be a leak from the A/C coil housing along a seam of the housing. I sealed it with tape, and it stopped the leak.

[AamirS]

Recently bought 2005 LX470, wife complained of water drop while driving and a/c on. Replaced a/c filter and cleared a/c drain.