Water leak into rear seat floorboards - Page 2 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat

1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

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Old 12-27-2009, 10:42 PM   #11
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Originally Posted by Mike1995 View Post
Ooooh, where getting somewhere! Hopefully you have ramps!? Or a way to raise the front end off the ground. Your going to have to get underneath with a piece of stiff wire and basically clean the chloresterol out of the drain tube. Looking at your blower motor, below that and to the left. Which would be the passenger side, is a small tube about 2 inches long and hangs down from the airduct area. I'll try and find a picture....
OK that will be tomorrows project. I have wheel ramps, jacks and stands. Only thing I am missing is a person to help in case the car falls on me.
I will also check the underside for cracks or gaps. And I am going to check the door seals again too.
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Old 12-27-2009, 10:59 PM   #12
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Under the vehicle, you will see four holes pressed in the floor, from memory something like 3" x 4", there are removable panels from inside the vehicle that are only held in by a thin metallic tab, all four of mine have rusted through and have left the panel to move up and down freely, easiest way to check is to simply poke the panel with your finger and see if it lifts from the underside. I have to pull my interior next summer and weld them shut. Never saw the purpose of them in the first place. This may or may not be your problem but can be easily fixed if so when you have the carpet out.
You will most likely have to pull the front seats, centre console and the rear seat bottom, rear seat bottom is easiest as it is held in place by two clips, pushing straight backwards by the bottom of the seat and pushing up slightly does it. You only have to move the seat 1/2 to 3/4" in backwards to free it from the clips. When drying the jute sound material, separate it from the carpet, if possible spread the carpet out flat, it will make it go back a whole lot easier than if you drape it over something, They tend to take the shape of whatever they are bent over. All in all good luck and I hope your floor is not too bad under all that water.

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Old 03-19-2011, 06:42 PM   #13
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Default 1997 olds 88 water leak

Originally Posted by martman View Post
Look at rear wheel wells, this is what I found in mine. This is my right one.
I know that the water is coming in here- I see it dripping from below the sticky padding attached to interior sheet metal.

When i pull it off- I know that i will see a similar scenario as pictured above.

But- before I do that, i want to be prepared.

How will I go aboput sealing that hole/leak?
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