99 GMC Yukon no heat

[the 18th letter]

About a month ago blower stopped working. Loaded the parts cannon changed blower, still no blower. Changed resistor, still no blower. Changed the Heat/AC control and the blowers back on but now I got no heat. WTF All suggestions welcomed.

 

[Joseph Garcia]

When the heat and blowers are turned on, do both heater hoses in the engine bay feel hot? You'll want to be sure that you don't have a heater core obstruction.

@swathdiver may be able to provide some troubleshooting input for your issue.

 

[Eman85]

Are the heater hoses both hot? Does the temperature door actuator move when you rotate the temperature control knob?

 

[the 18th letter]

When the heat and blowers are turned on, do both heater hoses in the engine bay feel hot? You'll want to be sure that you don't have a heater core obstruction.

@swathdiver may be able to provide some troubleshooting input for your issue.

Are the heater hoses both hot? Does the temperature door actuator move when you rotate the temperature control knob?

I’ll check both of these things out. As far as the temperature door actuator moving, I’m listening for the noise? Is there a visible inspection I should be doing as well?