Question about 2003 Mercury Grand Marquis
Here's instructions for replacing the actuator. Before servicing the vehicle, refer to the Precautions section. Disconnect battery negative cable from battery and properly isolate to prevent accidental reconnection. Remove the instrument panel. Disconnect the electrical connector from the blend door motor/actuator. Remove the four screws holding the blend door actuator to the plenum. Remove the temperature blend door actuator. Fig. Blend door actuator electrical connector Fig. Blend door actuator mounting to plenum To install: Installation is reverse of removal.
Posted on Jul 07, 2010
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Posted on Jan 02, 2017
Tips for a great answer:
Mar 28, 2016 | 2000 Ford Explorer Eddie Bauer
Fig. Remove the floor air outlet duct extension (1) from the floor duct (2)
Disconnect the electrical connection at the blend door actuator (#10 in pic below).
Fig. Blend door actuator and related components
Remove the blend door actuator mounting screws from the HVAC module.
Remove the blend door actuator as an assembly with the actuator cam.
Fig. Remove the blend door actuator mounting screws from the HVAC module
Picture of actuator:
Dec 07, 2010 | 2004 Chevrolet Avalanche
Nov 05, 2010 | 2000 Ford Taurus
Suspect it is the blend door actuator, but please see my tip at http://www.fixya.com/cars/r6235876-no_heat_fan_blowing_cold_air . These are generic instructions. If you get stuck or need specific instructions for your car, please get back to me with model, year and engine info. Below are instructions for replacing the blend door actuator, but don't replace it unless you're sure it's bad. Autozone has it for $36. First, take it out, plug the connector back in and see if it turns when you change the temperature control. If not, the problem can be in the controller or the actuator. If it is clicking, the problem is stripped gears. If it isn't doing anything, you can check for voltage at the connector with a voltmeter. Connect the black meter lead to a good ground point and probe the connector terminals with the red lead while changing the temperature setting.
Blend door actuator removal and installation: Fig. Air temperature actuator removal
Fig. Air temperature actuator removal
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