I have tried the towel method and it works, but I would like to have the airflow out those vents. Just not blowing straight up on the windshield. I agree, the additional air should come out the dash vents in theory, but I don’t get the feeling that is what’s happening.
I’m going to fabricate a “defelctor” next weekend and see if it works. Mainly take the “defrost” airflow and send it out toward the passenger (and driver) instead of straight up out of the dash. If I’m successful, I’ll post my solution.
Steve Magown
2001 Featherlite H3
West Monroe, LA