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eBayhttps://www.ebay.ca > ... > HVAC Vent Actuators
NOS 2004 BUICK CENTURY HEATER BLEND DOOR ACTUATOR 52404369 HVAC ; Breathe easy. Returns accepted. ; Fast and reliable. Ships from United States. ; Condition. New ...
eBayhttps://www.ebay.ca > ... > HVAC Vent Actuators
Dorman 604-107 HVAC Air Door Actuator fits Buick Century · C $42.80 ; 2 Heat Heater A/C Fan Air Vent Blend Door Actuator for Chevy GMC Pickup 15-72971 · C $46.84 ...
Is the heater not working in the front of the van, but is working in the back? You might mean the 'blend door actuator'. It's not easy to get to. The correct way is to remove the dashboard. Search YouTube for 'Windstar blend door actuator' to get some ideas.
Blend air door may be stuck. I removed a pencil from a heater box before. It had fallen from the dash, down through the defrost vents and jamed the door.
you cannot repair the actuator you need to replace it with new one. These motors turn but get weak with time. if you test it, it works, put it in and it doesn't. this is because the motor is weak, unfortunately GM does not sell these motors separately.
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