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Re: how to replace 2000 buick century temperature...
First, what is the problem that you need to replace the actuator? Is the air flow from the vents not changing? If this is the problem, the actuator is inside the venting behind the control panel and is difficult to get to but is possible. Follow the hoses on back of temp controls to the actuator. There should be 2 small bolt screws to remove to change out actuator. If this is for something else, let me know
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The electric control actuator more then likely ! Do you hear any clicking come from behind the instrument panel . These actuators have plastic gears inside and they break , strip etc... Can also set DTC'S - diagnostic trouble codes to set in the HVAC - control panel (module ) A scan tool used to check engine codes can't read these codes . Need a factory scan tool or professional grade .
The HVAC control module receives a left air temperature actuator position signal from the left air temperature actuator. The left air temperature actuator position sensor is a potentiometer that is tied to a 5 volt reference source. The variable output from the potentiometer feeds back a position signal to a pull-up resistor located in the HVAC control module. This signal is used to determine the necessary drive signal to the left air temperature actuator motor to provide the proper air mix door position. This value is stored in the Keep Alive Memory (KAM) portion of the HVAC control module.
Left air temperature actuator signal circuit stays at 4.5 volts or higher.
Temperature Valve Actuator Replacement - Left Side
Remove the left instrument panel insulator. Refer to Instrument Panel Insulator Replacement in Instrument Panel, Gauges and Console.
Remove the knee bolster. Refer to Knee Bolster Replacement in Instrument Panel, Gauges and Console
Disconnect the electrical connector from the left air temperature actuator.
Remove the mounting screws from the left air temperature actuator.
Remove the left air temperature actuator.
Jul 21, 2014 - Uploaded by 1A Auto Parts
http://www.1aauto.com/temperature-blend-door-actuator/i/1ahcx00293 ... How To Remove Install Door Chevy Monte Carlo Pontiac Grand Prix ...
Jul 11, 2014 - Uploaded by willmacneill
The procedure is the same for most GM blend door actuatorsfrom 1990-2013 (found in many vehicles made by Chevy, GMC, Buick, Pontiac, ...
there is a drivers blend door actuator. the actuators are know to go bad. I know in toronto the dealer wants 80 bucks for the part. it easy to change. save yourself the money and do it yourself if you can
Follow the top radiator hose to where it connects to the engine. The thermostat will be in the housing that bolts to the engine. To replace it remove the bolts and pay attention to the position of the thermostat as the new one will sit in the same position. Be sure to get a thermostat rated for the same temperature as the old one and use the gasket that should come with it.
The temperature actuator has gone bad. You will need to replace and have it recalibrated. You could try and disconnect the battery for a few hours and see if it will reset it's self. But you will be in the same boat before too long. And will eventually need to replace it.