These are tied into several sensors that detect the outside temperature to compensate for incoming air inside air temperature and even a sensor to signal when a door.
1998 buick regal blend door actuator.
A computer assigned to this duty controls the blend door actuators.
I did purchase a air door actuator but can t find it.
The blend door actuators in a buick are electrically operated by blend door motors.
Heater blend door actuator connector.
No parts for vehicles in selected markets.
An actuator can go bad in of two ways.
No parts for vehicles in selected markets.
Remove the box and manually turn the blend door shaft it was attached to.
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.
Heater blend door actuator connector.
Have done some research and almost everything leads to the blend door actuator.
First the electric motor can burn out rendering the unit non responsive so nothing changes when the temperature or.
1998 buick regal 6 cyl automatic on my 98 buick regal the air conditioning blows cool air on the drivers side and hot on the passengers side when i turn on the dual control.
If you get cold air it s the actuator you removed.
Same problem on my 98 regal gs.
1998 black silver regal gs 140 000 mi credit goes to where i originally found the solution cannot remember where on the web read practically every post on this board concerning the blend door actuator but it worked like a charm for me so if it helps someone get the ac back with summer upon us then it may help.