I noticed that my car is running a bit warmer then usual lately (aproaching second white line when cruising at 90 MPH).
I popped the hood when I got home today and noticed that the three or four "flaps" behind the front bumper are closed.
I would assume they should be open when the car is hot and the ambient temperature is around 89 degrees.
What tells them to open or close?
What do I need to check?
Cheers,
Sab.