Following a heavy rain, my 2004 Pontiac Vibe, with roof racks but no sun roof, will leak water from the ceiling header where the side window meets the windshield, and land on the driver's left leg. The water tends to drop more when the car is accelerated. The windshield was replaced about 5 years ago.
What is the likely cause of this leak and how can it be repaired?
Thank you.