Well in the 90+ degree heat I lost all air in my 96 Cobra. I have no A/C, heater, or even vent. When I turn the switch I can hear the clutch engage but no air comes out. This has happened before but everything shut off and come back on a little while later. A few weeks ago the system came on for like a minute and shut off again two seconds later. I have already checked both fuse boxes. Any ideas about what this could be? Any help is greatly appreciated since HVAC is not my strength.