Interior problem
2005 Pontiac Grand Prix 6 cyl Front Wheel Drive Automatic 44000 miles
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I'm getting a wet passenger side floor (front and back) every time it rains. I believe the water is coming in from somewher on the firewall or cowl. The windshield or windows are not leaking. Any suggestions?

Do u have sun roof
if so I would check and clean drains in it
open sunroof and check corners
u can use compressed air and blow throw the drain holes