2000 Pontiac Grand Prix Gt gets dust in the trunk (which blows into the interior) while driving on gravel roads. Where is my leak and how to I plug it?
Have you checked for rusted areas? An easy way to find out would be to get in the trunk and close the lid (Be careful not to latch the trunk lid or have some outside to let you out). You would be able to see light from the open areas that are allowing the dust into the trunk.
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