Posted by SteveH on June 07, 04 at 19:40:35:
In winter, I can feel cool air, and in summer, I can feel hot air directly on face. Contrasting air is not coming through A/C or heating vents. Chevy service can not find any leaks in firewall and claims "this symptom is found in all Tahoes/Suburbans/Yukons." Has anyone else felt hot air in summer/cool air in winter? Definitely feels stronger the faster the speed and when taking turns, but have also felt hot air in summer while parked.