If both are getting hot, coolant is flowing through the heater core. Now, the blend air door is located on the heater box under the dash of the vehicle. I believe this one is on the passenger side. Locate the heater box (where the core is located) and then locate the doors that open and close from that location. Once located, actuate the heater control from cold to hot and see if the door reacts.
Tuesday, December 1st, 2015 AT 5:39 PM