I've noticed when I start up my 2010 Honda Civic Coupe and turn on the A/C, the air coming out of the vents refuses to cool down to the proper temperature, even after prolonged driving. It's somewhat cool, but not cool enough.
But if I turn the temp knob all the way to "hot" (red) and then back to "cool" (blue), the air then cools down to a very chilly proper temperature.
Evidently cycling the temp knob back and forth forces the A/C air to get colder.
Any ideas why this happens?
-- Steven L.