Blender door actuator

Good afternoon.

Which actuator? there are three different ones. Which function is not working?

The HVAC actuator/blend door.

Heat.

Okay, sorry, but the answer is yes. the dash has to be removed to gain access to the top of the heater case. I attached a picture for you to view.

Roy

Has the actuator been confirmed as the failure?

I have replaced the radiator, thermostat and checked the heater core. I get about thirty seconds of heat then it goes to cool air.

Okay, if you get some and it goes to none I doubt it is the actuator.
move the heat/cool control back and forth and see if you hear the mode door moving.

Are both heater hoses hot to the touch under the hood? It sounds like you have a clogged heater core.

Roy

Thanks Roy.

You are welcome.