Question about 2004 Chevrolet Malibu

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My Malibu has a leak somewhere the floorboard in back of drivers side is soaked, I read it could be the drain from the sunroof or ac plug how can I find out where it is coming from?

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Some black ink dissolved in a bucket of water ,i would plump for the sunroof they empty down the centre door pilar i think ,only ever seen one of these cars though here in spain so i couldnt really say but a lot of europeon cars run down the centre door pilar

Posted on Dec 29, 2010

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1 Answer

Water on drivers side floorboard . Why?


If you have a sunroof it could be the drain that follows the front pillar letting out under the front fender. These hoses are known to plug and crack open releasing water into the floorboards.

Driver side door check along top and front edge for tears or twisted looses sections. Internal to the door water can drain down along the window and is released outside the door seal. If the bottom of the door has the opening that releases the water plugged then water will drain over into the floorboard.

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My 06 H3 was leaking when it rained. It turned out to be the sunroof. There are two drain tubes in thefront of the sunroof that run the water down the corners to the groundand two drain tubes that drain water out the back corners. The waterwould seep around the glass, which is expected, but both of the tubeson the front of mine were plugged, and the water would overflow behindthe dash and fill my floorboards. If my H3 was leaning to the leftduring a storm then the drivers side would be full of water. If leaningright, then the passenger side. I had to open sunroof and blowcompressed air into the drain holes to clear them, but be careful, toomuch pressure will separate tubes from sunroof and then you will have toremove the inside paneling around sunroof to get to tubes andreconnect. You may only have one side plugged. you can test it byopening sunroof and pour a little water in the small catch pan in thefront of the sunroof and see if it drains as expected (to the groundunder the firewall2_bing.gifon left AND right side). You can see the holes in each corner of catchpan to drain the water. Plug one with your finger, then the other tofind the plugged side. Good luck!! Hope this helps!!

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Water leak in my range rover on driver side floor had drain unstop from sunroof what else could it be


You unclogged the sunroof drain line - that is good. Are you sure that the line didn't pull up thru the floorboard. Many vehicles run the drain line down the drives side window pillar and out thru the floorboard. If the hose shrinks with age (as some do), they can pull up into the cabin and leak on the floor.

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What can cause floor in the back, (behind the front passenger seat) to be soaked with water (& I mean SOAKED) ?


I assume there are no leaks in the windows or sunroof.
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1 Answer

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1 Answer

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