Clean sunroof drain
use compressed air
locate the drain at corners use the air to blow it out
September, 19, 2008 AT 9:22 PM
Easy fix go and buy a small tube of neoprene [the stuff that they put the windshields in with. Now where the foof and the windshield molding meet on the top of the van. Put a bead all the way across and come down on each side about one inch but you have to leave a grove for the water to go by on each side as there is a drain valley on each side. This will stop the water from going in underneath the windshield molding and on the inide of the windshield.