Which part is broken with my A/C? - GMC Envoy Denali 2005
I have an Envoy 2005, 5.3L - My climate control system is blowing air
through the defrost vents & floor, but won't transition to the standard cabin
vents. I get heat but no cool air / a/c. I can turn the air flow up/down, but
can't get the flow through the standard vents. Any idea what part in the
system is the cause? Any help would be appreciated! Thoughts?
Thanks in advance!