how do I axcess the fresh air vent flap? on 2005 Chevrolet Cavalier

when the fresh air is turned on or off the flap goes tap tap tap wont stay open or closed sounds like motor is running constantaly

Asked by for the 2005 Chevrolet Cavalier
1 answer
theres a way to remove that flap,,my hubby broke ours out,, peace and quite again