Hey guys,

Just got a 2013 Accord Sedan EX-L V6 automatic, it's a great car.
Previously I had a 2005 Accord Coupe EX-L V6 Manual.

Anyway, I have 160 miles on the 2013. While in park with the engine running, there is an audible pressure fluttering, gets worse the higher I crank the fan blower speed. Cracking a window or opening the moon roof a tiny bit make the problem immediately go away. If I change to "recirculating" air supply the problem also goes away. When all the windows are closed, the pressure flutter is very noticeable. It's like when you are driving and the moon roof is open, the air pressure changes you feel in your ear drums.

Dealer wants me to bring it in, they have no idea but want to play with it. It's an hour drive away, so I was hoping to at least check a few things myself first.

Where does the air generally enter the blower and where does the air exhaust from the cabin? Is there a flap or something that might be loose or covered or something?


earl

 

Ventilation air comes in from the cowling around the windshield wipers. The air gets out via the trunk, & the vents are hidden under the rear bumper. Where the plastic bumper skin wraps around towards the rear wheel arches.