Possible DCCV issue?

[jjackso2]

I have tried to wade through all the dccv issues on here, but have not seen an issue like mine. When Temperature is set to 60, AC works fine. As soon as I up the temp, I get heat. Air temperature is same at all vents. Is this also a dccv issue?

 

[joegr]

Yes, that's a classic DCCV symptom. (I assume you have a gen 1 LS. The gen 1 has a cold air bypass door. That's why you can get cold air when set at 60 even with a failed DCCV.)

 

[jjackso2]

I have a 2001 LS Sport V8, so I assume that is gen 1

thanks