I'm sure this has been addressed before on this site but I couldn't find it anywhere. My 2002 Grand Caravan 3.3 auto, has water occasionally leak inside the cab on the passenger side usually after a healthy rain. I'm sure it is probably a seal under the window wiper trough but haven't looked yet.

Anybody have a guess? Thanks

 

Make sure the drains are clear on both sides on the cowl.