Driver side floorboard SOAKED

[SkidMarcus]

I'm not seeing as much of molding or rivets as I'd like. But you very well "may" have a factory installed windshield.

Hp Air/ soapy bubble test can miss spots very easily, unless the entire cabin pressurized. But if factory installed windshield I'd look elsewhere at this point. You can come back to windshield if need be.

Notice in picture I posted with inside molding off. That clear tube is the sun roof drain. Make sure it doesn't have holes from someone installing mods or rodents sampling dinner.
Is your roof rack factory install.

Do you have a rust bucket with any body rust.

Have you cleaned the leaves out of fender, behind plastic shielding in front wheel well close to the door.

How are door seals.

Isolation and angles can really help. Example, isolate sun roof drain by only filling one drain hole at a time. Don't let water run anywhere else.

Sorry, I was in a bit of a rush this morning when I took that seal partially out and snapped pic.

Sunroof drains are clear of obstruction. I poured water in them and immediately came out the end of the drain. I inspected the hose all the way down, and it is in good shape.

factory sunroof.

No rust issues.

I have not, but in digging around, they did not appear full of stuff. But I will check there.

Door seals show no damage or compromised integrity.

May be worth noting that the majority of the water was in the middle of the floor pan, which is higher than the outer threshold.

There was no smell or evidence water has ever sat there for any amount of time...which I found odd.

 

[flintknapper]

Hp Air/ soapy bubble test can miss spots very easily, unless the entire cabin pressurized.

A couple of days after my windshield replacement checked mine (not that is was leaking) but just to be sure.

I have a reversible shop vac that I used to pressurize the cabin. rolled the drivers side window down a bit, placed the hose in that and then taped around the window crack and hose. No leaks found anywhere.

I could hear air escaping from the vents at the rear quarter panels and I got one tiny set of bubbles in one small spot at the drivers side venting rear window seal, but didn't worry about that...as I will never have that much interior pressure with just the A/C system.

 

[flintknapper]

Sorry, I was in a bit of a rush this morning when I took that seal partially out and snapped pic.

Sunroof drains are clear of obstruction. I poured water in them and immediately came out the end of the drain. I inspected the hose all the way down, and it is in good shape.

factory sunroof.

No rust issues.

I have not, but in digging around, they did not appear full of stuff. But I will check there.

Door seals show no damage or compromised integrity.

May be worth noting that the majority of the water was in the middle of the floor pan, which is higher than the outer threshold.

There was no smell or evidence water has ever sat there for any amount of time...which I found odd.

Presumably no coolant smell or color? Foggy windows?

 

[SkidMarcus]

It's crystal clear water. No smell at all. And it appears that's the first time that padding has ever been wet.

So we had a TS come through here (I'm just north of New Orleans) on Friday, I brought it to get the tires balanced Saturday morning, and I didn't pick it up until 6pm, by that time, the windows were fogged in the inside. Everything is dry now.

 

[2001LC]

Any chance they left window or sun roof open. This may be a one off.

I'm lost in to many threads today. But did you get this to repeat after drying?

"factory sunroof. "Factory ROOF Rack ?

A couple of days after my windshield replacement checked mine (not that is was leaking) but just to be sure.

I have a reversible shop vac that I used to pressurize the cabin. rolled the drivers side window down a bit, placed the hose in that and then taped around the window crack and hose. No leaks found anywhere.

I could hear air escaping from the vents at the rear quarter panels and I got one tiny set of bubbles in one small spot at the drivers side venting rear window seal, but didn't worry about that...as I will never have that much interior pressure with just the A/C system.

Sweet. Shop vac. Such a great solution. I'm going too use it....

 

[SkidMarcus]

Any chance they left window or sun roof open. This may be a one off.

I'm lost in to many threads today. But did you get this to repeat after drying?

"factory sunroof. "Factory ROOF Rack ?



Sweet. Shop vac. Such a great solution. I'm going too use it....

My wife used it to help her friend move during a tropical storm... She swears that they didnt leave a window or door open. I wish she did though, would save me a headache if I knew that's what caused it.

Could not get this to repeat.

Whoops, I read the question correctly, and answered like a dummy. Yes, factory rack.

 

[AlpineAccess]

While ignorance isn't bliss, you can really pull a lot of hair out trying to find what is in the short term, not a big deal. I'd keep enjoying it and monitor for the leak to return.

If you want to really narrow it down - I've used this on projects before and it is great. Cut strips and run them horizontally across panels. The tape will change color in the section the water is running down from or entering from.

Water Indicator Tape on Amazon

 

[2001LC]

I would dry and then setup a sprinkler to soak the rig for hours. If no leak your done.

 

[SkidMarcus]

While ignorance isn't bliss, you can really pull a lot of hair out trying to find what is in the short term, not a big deal. I'd keep enjoying it and monitor for the leak to return.

If you want to really narrow it down - I've used this on projects before and it is great. Cut strips and run them horizontally across panels. The tape will change color in the section the water is running down from or entering from.

Water Indicator Tape on Amazon

I'm starting to lean towards that... I like that tape idea. For a few bucks, it cant hurt.

 

[SkidMarcus]

I would dry and then setup a sprinkler to soak the rig for hours. If no leak your done.

I left it in the rain all last night and it's bone dry inside.

 

[2001LC]

Unless you've some hole like a wire housing grommet in lower firewall and driving pushed water in. Or the angle it sat at in rain last night, water didn't flow where you're looking. Your done!

Sounds like a one off.

 

[SkidMarcus]

Guys, I appreciate the amount of feedback received regarding this mystery leak. I'll keep an eye on it, hopefully it never shows up again.

 

[flintknapper]

Check and see if the drip might be coming from the AC condenser cover. It's located right behind the glove box door, and drips into the passenger foot well.

This was one of the first repairs I did on my 2001 LX470 back in 2011, and it has started to drip again this year.

I thought mine was the windshield for a while.

(1) Cover, cooler, No. 1: 88891-60040
(1) Packing, cooler: 88578-47040

Here's some good info on it A/C condenser drain leak

Good info but the OP's problem is on the Driver's side.

 

[2001LC]

A/C condensation leak is not a big deal, other than longer term floor board "rust".

Leaks into the dash or foot well areas are a big deal. If this is a leak down "A" pillar, and is allowed to continue, it can be very damaging. We seen 100 and 200 series totaled for it. The biggest issue is electronics.

This leak is almost always from a windshield install. The leak is from one of two reasons.
1) Installer left and opening into interior. This leak starts day of install.
2) Rust; Nicks in the body paint under the windshield molding and black ploy. This is done by installer, with a razor blade. This can't generally be seen, but felt by installer as he cuts down the poly. This is very damaging to the body, creating rust holes into cabin over the long term. This is very hard to spot, as rust hidden out of sight, until it show in bubbling paint around windshield. If allowed to continue the rust grows and expanding cracking the windshield.

Miro rust stain. Found open hole in "A" drilled by installer.