I took ours out and modified the hinge a little to increase the friction so they don't close so easily. Did all of them.
I didn't want to glue them open permanently.
Have fun...I repaired 2 ducts that the foil was not completely sealing the outlet. Added some aluminum foil tape to the opening duct where it exits.
Outdoors RV Glacier Peak 26RLS Fifth Wheel
Ford F350 Superduty 6.7 Oil Burner
Jeep Wrangler for dirt