First time a corvette coupe owner and I need your help. Is it normal that the cabin temperture to get as high as 84 degrees even if all the windows are rolled down and it's 70 degrees outside? I can feel the hot air coming out of underneath driver side footwell as well as center console getting hot.

 

84? Wait until it's HOT outside!!

 

It's typical to have some heat emanating from the console. Although I never found console heat to be excessive or unbearable, some people do (I live in Arizona so I'm used to heat anyway). Elite Engineering and others make after-market tunnel plates (some with special heat insulating 'blankets') to help reduce console heat. You might want to check into those.

As for hot air blowing out in the foot well, maybe check your thermostat and heater controls to make sure they’re not contributing to the 'problem.'

 

The console does get warm. The exhaust gets real hot and it's right under there. There is aftermarket stuff that can be added. or what I've done in all my vettes is point the center HVAC vents down at the console and on warm days kick on the A/C.

Driver's side floor warm air? what is you HVAC set at when your feeling this? How do you know it's 84 degrees inside the car? Very common to be hotter in the car than out.

To make sure all the doors in the HVAC system are working right, I'd kick on the A/C full cold and direct the flow to the floor. Cold on both sides? keep bumping the temp up, both sides now get warmer? take the temp back down to full cold, both still get cold? Switch the air outlet to the center dash vents and do the same thing, all the outlets go from cold to warm and back as your moving the temp?

If your using a thermometer inside the car, one misconception is to assume that if it is 70 outside and I have the vent on, that 70 degree air will be coming out the vent. Won't happen. Vent air will always feel warmer than outside air. That whole underdash area is hot. You've got a 220 degree engine right next to the firewall, red hot exhaust, all the electronics such as the radio get hot. After the car has been running a while it is just flat hot under that dash. So when vent air passes through the ducts it will be warmer than the outside air. So if you have your HVAC directed at you feet in just vent mode with no A/C, the air will feel warmer than outside ambient.

Probably the best test is to compare to a similar car. See if your dealer will let you sit in another 08 and idle it in their lot next to yours. Jump back and forth between the two and see if it's the same.

 

if your a/c controls are set to a high temp, you will feel heat at your feet and legs, even if the a/c is off. Make sure the a/c temp is down to 60.