Question about 2004 Pontiac Grand Prix

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I have a GTP with a sun roof. Whenever it rains

I have a GTP with a sun roof. Whenever it rains hard, water pools in the right rear floor. The only place I find any water is behind the right front seat. The well area seems to fill with water. I had the roof liner removed because the repair shop thought it might be a kinked drain hose. I have no idea where this water is coming from, and apparently no one else does either. Chuck Carpenter

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  • Jonathan S
    Jonathan S May 16, 2010

    I have an 06 GP had a water issue the channels on the roof had to be resealed.If you look at your roof you will see channels on either side on the sun roof.Depending on exact location of the water the the sun roof seal may be bad

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1 Answer

You need to remove the head liner
If all the hoses are attached,then squirt water into them with a small bottle and then blow them clean with an air hose,check on ground for water

Posted on May 16, 2010

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