Water may be present on or under the carpet.
Back truck window leaking.
Also inspect the bottom of the windshield s glass for nicks chips or cracks.
If the seal gets damaged or dries out water will track down the front of the door and into the car.
When water comes in around the glass it can become a big problem for truck owners.
The lower the water pressure used the faster the vehicle will actually leak he explains.
The water can travel down the window track wet the seats and interior of the truck cause mold to grow in the carpet and leave it smelling musty.
Finding windshield leaks to test for a leak vandale recommends gently showering the car with water.
Take your screwdriver and gently pry the rubber window trim away from the windshield near the source of your leak being careful not to bend or nick it.
If the weatherstripping is not 100 replace it.
The seal will need to be replaced if that is the source of the leak.
On some models a void in the rear window seal may cause a water leak.
The back slider windows on some older truck models have a tendency to leak.
A visual inspection is usually sufficient to diagnose whether this is the culprit.
The rubber seal around the edge of the door can also sometimes be a cause of leaks.