no front floor heat/dash panel heat good

[keitheagle]

2004 GMC Envoy XUV SLT 4.2L Six

Need help diagnosing no floor heat. Dash panel heat is good. Vehicle has Automatic Temperature Control.

Thank You,
Keith Dixon

 

[The_Roadie]

Welcome! You seem to have the classic dead airflow mode actuator. Have you recently discharged or changed out your battery?

http://gmtnation.com/f23/hvac-acuators-dash-removal-2193/

and many other threads you can find with a search for "airflow mode actuator"