My Contour gets very hot when parked in the sun even when it's not that hot outside and when I go to turn on the A/C it cools right a way but the drivers vent takes forever to get cool and it doesnt even get as cool as the rest its just not hot. i had the A/C system checked and they told me it was fine and they didnt know what was wrong. i hate having hot air blow into the car when its 100 degrees + outside and the hotter it is the more time it takes for that vent to stop blowing hot air. can you guys help me? i would appreciate any suggestions.thank you