A blend door actuator is made up of an electric motor that turns a plastic gear set in one direction or another which is connected to an air control door pivot at the final drive of the unit.
2004 chevy impala driver side blend door actuator.
First the electric motor can burn out rendering the unit non responsive so nothing changes when the temperature or.
If you re only able to get cold or very hot air from your vents there may be a problem with the blend door or actuator.
Install the blend door actuator mounting screw to the hvac module.
Equip cars trucks suvs with 2004 chevrolet silverado 2500 hd a c heater blend door actuator from autozone.
It is controlled by a blend door actuator which is a small electric motor.
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This 2004 chevrolet impala came in with the complaint that there was no heat on the driver s side of the car.
Tighten the blend door actuator mounting screw to 14 inch lbs.
Connect the electrical connection at the blend door actuator 10.
Line up the heater defroster valve lever with the blend door actuator cam slot.
Line up the a c valve lever with the blend door actuator cam.
The actuator moves the blend door in your silverado s heating and air system to achieve the proper mix of hot and cold air.
When you turn the knob on your dash to the desired temperature the actuator moves the blend door to achieve the proper mix.
It could very well have been the reverse no a c on the driver side as the problem turned out to be a faulty driver s side blend air door actuator assembly.
Hvac air door actuator compatible with chevrolet impala 2004 2013 replaces 1573517 1574122 15844096 22754988 52409974 604 108 15 74122 604108 heater temperature blend door actuator 4 7 out of 5 stars 800.
An actuator can go bad in of two ways.
The blend door is controlled by a small electric motor called the blend door actuator.