Q: My van leaks water when it rains cant find leak replaced windshield not roof rac on 2004 Pontiac Montana

Rookie cbe0621eac06868b3efe0d8d1d3611e23c60d3114864ea2ec19a68cfbd3eebab
When it rains runs down pillars both sides cant find source of leak
(2) Answers
Mine is doing this. I looked on top and the roof is rusting at the edge where it meets the windshield. I'm thinking about putting a silicone caulk on it, but am Open to other ideas if you have any.