Is there anyone out there who might be able to diagnose climate control not working? None of the settings do anything except make a hissing noise for a second. No air comes from the vents at any temp setting. Is this a fan issue or vacuum? The door locks all operate slowly, but even after sitting for a week. The brakes are fine, transmission shifts fine. There is oil on the floor on the driver's side. When I lift up the carpet there is a tube covered in oil, could that be from the brake booster? Could this be contributing to the a/c problem. The car is fully charged with freon. It has been inop for about a year. Thanks!