floor leakage?

my 04 impala seems to leak when i go through the auto car wash in the passenger floor board. the water is not comming in through the doors or windows, so it must be the floor board. is there a grommet that could be replaced or maybe it's rust? help !!

I think a search on this forum will give you your answer,I remember reading about a drain that gets clogged causing what you are getting.

My '01 LS leaks (bad) on the passenger front also. I found the above mentioned drain tube but is not clogged. I got lucky one day and saw the water pour in from under the glove box (it of course accumulates in front of the passenger seat). After seven years and 119K miles, I don't feel like chasing this one. I just want the car to hold until I can get a new one (Impala). I can tell you this: when the water drains, if I turn on the interior lights - the passenger footwell light is "focused". Meaning it does not light the entire footwell but just a small section of it. As if there is something is right up against the light bulb itself.

John

Try this. It may or may not work. The cars have similar parts, mechanicals, etc. Go to the Grand Prix forum you will find a gazillion posts about the leak you are having. I own a 2004 GP, tried the suggested fix, and it worked. I also own a 2000 Impala. Never had a leak, but who knows...the GP fix just might work for you. It's very, very easy and takes just a few minutes.

I have a 2002 Impala, and I had the same problem - after a rain storm or a snowstorm, I would get a flood on the front passenger side floor. I could see the water dripping down through the hole where the light is in the kick panel under the dash. I fixed mine and it was a simple fix.

The problem in mine was a rubber piece that is supposed to go underneath the plastic trim piece that is as the base of the front windshield fell off. The cabin air filter is located on the Passenger side in between the base of the windshield and the firewall. If you remove the filter, you can see the blower fan, and have direct access to the inside of the car. The rubber piece goes on the metal at the base of the windshield (under the trim piece), and is designed to take any water that flows down the windshield and under the trim piece and divert it to drip down either to the right or left of the cabin filter. Once there, it flows toward a drain that takes it outside the vehicle.

Here's what I did:
Turn the wipers on and get them to stop pointing straight up. Raise the hood. Remove the plastic clips that hold the trip piece on. Remove the trim piece. Replace the cabin air filter (Mine was soaking wet). Put a healthy dose of silicone sealant inside the slot of the rubber piece. Push the rubber piece back on (be sure it is in the right spot - water needs to drain on both sides, and the area where the cabin air filter is should be centered on the piece). Use something to temporarily hold it in place until it cures (I used a wadded up towel for about a half hour). Put everything back together. Finally, I had the smell of mildew/ old water stains in the car. I used a tin of used coffee grounds for a couple of days (on the floor in the back seat), and the smell is gone.

Hope this helps.

OK - I'll try that. I've replaced the cabin filter so I know where I'm going.

BTW: I dislike odors of any kind so I keep a box of baking soda under each front seat as a rule. The Arm & Hammer brand has a way to remove the side of the box without spilling the contents.

John

I'll try the baking soda... Thanks.

When you use the silicone sealant- You will smell it inside the cabin if you use the heater until it cures (a couple hours).

Good Luck.