Have an 06 Impala 3.9L IP and I can't get the heater to blow hot. I just replaced my AC compressor clutch because my AC wasn't working. Now it seems the heater doesn't want to work. There'* no leaks, radiator fans engage, not low on coolant, thermostat does function, and the waterpump was replaced only a year ago.

When I use to switch from cold to hot or hot to cold, it use to stop what was blowing, and than restart with the cold or hot. Now when I switch from hot to cold or opposite, nothing happens. Is there an actuator that is responsible for switching the temperature controls..??


Help would be appreciated!

from 2000 to 2005 GM used the vacuum from the manifold to open and close the blend doors, there was also a small storage tank under the dash near the passenger compartment. In 2006 on they used electronic actuators. I have a 2003 Impala and a 2006 Malibu. I can hear the actuators as the blend doors open and close on the Malibu. Could be the actuators or a fuse.

How many actuators do impalas from 06-13 usually have? I just replaced the blend door actuator (one under the glove box) and everything was fine until I replaced the AC compressor clutch. There'* no clicking noise when switching from climate settings so the blend door actuator is working as it should. How many other actuators does the car have?

Probably one maybe two. Maybe it'* a fuse . does the AC clutch energize ?

If you're talking about electrical fuses than there aren't any blown. What do you mean by does the ac clutch energize?