Did GM fix the recirculation issues that plagued the K2XX platform?

[SS502]

10 hours ago, Yotaman said:

I find it ironic that my 1988 Toyota PU had a sliding damper that went from recirc to fresh and when the recirc door closed no outside air came in......Ohhh the simple things I long for. I really don't understand my 14 Sierra system and do not even really try.

 

 

 

Yotaman

Yes Sir! Their 90% (using the highest % people posted) clean air is total BS. Remember that the “Right cheek sneak”  although just a little bit by volume will make an entire elevator full of people MISERABLE ? 

[Mark Zig]

Yes I agree. The recirculating system in my new 2020 is horrible. I’ve owned 7 Chevy trucks in my life. 81,86,90,97,03,15 and 20. I don’t really remember up to the 97 but the 03 onwards has been terrible. It’s an open system that should be a closed one. I love my truck but GM is way behind the 8 ball on this one. I’ve looked into an after market fix but have had no luck! Any comments regarding this issue would be appreciated.

[deepsta]

maybe the blend door actuator is not working properly?