If the weatherstripping is not 100 replace it.
Back truck window leaking.
The lower the water pressure used the faster the vehicle will actually leak he explains.
Also inspect the bottom of the windshield s glass for nicks chips or cracks.
Finding windshield leaks to test for a leak vandale recommends gently showering the car with water.
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.
284 people reported this problem.
If a hose is put on full force the water will bounce right off.
When water comes in around the glass it can become a big problem for truck owners.
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.
The rubber seal around the edge of the door can also sometimes be a cause of leaks.
Water may be present on or under the carpet.
Check the channel the metal well underneath the trim for cracks or rust.
The back slider windows on some older truck models have a tendency to leak.