we have a 2000 Chevy Monte Carlo and the passenger side floor boards are wet on 2000 Chevrolet Monte Carlo

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it is not wet up by the dash board but on the floor boards both front and back the seal around the doors are fine and the door shuts fine also has not been a wreck the window was up have not used a/c or heat please help
(2) Answers
(4) Comments
If it's not the heater core leaking or the a/c drain stopped up and no sun roof, windshield leak is the most likely suspect.
how can both the front and back be wet if you say it could be windshield leak has not been in a wreck never no front end damage
If enough water leaks into your car, the entire floor pan eventually will be wet! The windshield seal can leak without any warning or reason, stuff happens!
That was just a suggestion, not a given!
Had this problem with my monte carlo, the cabin air filter seal isn't seated properly. Water gets in and runs into the floor pan. I found it after I had an oil change done, usually do my own and always will now !