Question about 2004 Pontiac Grand Prix

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Should there be a cover on the Cabin air filter?

On my 2004 Grand Prix I was getting water in the front passenger side floor. As I was looking for the source I pulled the underdash cover under the fan and saw that water was leaking out of the fan motor. I pulled down the motor and saw the cabin filter was soaked. When I popped the windshild trim of, there was the filter, NO Cover! So apparently water runs down the windshild and into the filter. I understand the rubber gasket on the WS trim should keep most of the water out, BUT apparently not all. Sooooo! is this a poor GM design or is there suppose to be a cover over the filter.

Thanks for considering this!
Regards,
Brian

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  • babyblueyk2 Oct 11, 2008

    I AM HAVING THE SAME PROBLEM, BUT GMPP MY EXTENDED WARRENTY IS TELLING ME THAT THIS ISN'T COVERED UNDER WARRENTY, YET MY WHOLE CAR WAS SOAKED WITH WATER. tHIS CABIN AIR FILTER COVER THAT WAS SUPPOSED TO BE THERE WAS NOT!!! tHEY ARE TELLING ME THEY HAVE UPDATED THE DESIGN TO A PLASTIC COVER TO PUT UNDER THE COWEL, BUT TO ME DOESN'T SEEM TO BE THE BEST DESIGN!! THE PLASTIC COVER IS SUPPOSED TO REPLACE THE RUBBER WEATHER STRIPPING???

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There should be a cover.no water should be getting in at all

Posted on Aug 09, 2008

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I had the same problem with mine. If you remove the plastic molding at the wiper you will see a piece of rubber about 20"long that more than likely fell off. This piece of rubber is to divert the water to the drain hole to the side of the filter. I had to run a bead of silicone in the groove of the rubber and stick it back on. Hold in place with tape until silicone cures. This will keep the rubber from continuously falling off. I haven't had water since.

Posted on Dec 08, 2010

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I had the same problem. If you will look inside the cabin filter area you will find the gasket that is supposed to keep the water from entering the filter. You will be able to put it back in place and this should solve your problem. You must remove the right cowl cover and you will see the problem.

AJ

Posted on Aug 09, 2008

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