Corvettewaldon

I don't drive in winter, but do drive in colder weather, everything works with climate controls, ie: blower and temp adjustments, but no heat, just cool air, any ideas to check before I have it looked at. I try and do as much work myself, but not familiar with heating aspect. Any advise would be great

Cliff Harris

What year is it? Does it have the C60 manual HVAC system or the C68 electronic HVAC system.

You might have a plugged heater core. The blend door might have a problem and be in the cold position all the time.