Hello, new member and first time poster. I have owned a 2003 Grand Prix for a couple of years, always parked outside and this is the first time I have noticed water getting into the car. It rained all night and there was a puddle of water in the driver's side floor the next day. I could see that water was getting to the bottom of the door and running in there under the door. There was water between the weatherstrip and the plastic threshold piece that you step over to get in. None of the weatherstripping is torn or falling off. I assume it's getting in at the top and running all the way down the front edge of the door. Has anyone else seen water entry at this point and if so, was it due to the weatherstrip on top of the door itself or the one on the body opening?
Again, it is clear the water is not coming in from the windshield or cowl. Any suggestions welcomed. I know I could completely replace the weatherstripping, but it's pretty expensive even for one door. I thought about putting some kind of thin foam or rubber material behind the body weatherstrip to force it tighter against the door.
Don
