2011 Ford F-150 fan switch creates a knocking like noise under dash?
noise will go away after switch is turned to a higher speed and it just does it on ac
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noise will go away after switch is turned to a higher speed and it just does it on ac
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Donald, Found this info. from a Ford F150 forum, There are 4 electric actuators that control temperature (left and right), air recirculation, and mode. Try adjusting the controls one at a time to determine which actuator has failed. You may have to do a little investigative work to find which one is making the noise. Each has a small motor with a potentiometer that lets the control module determine where the particular door is positioned. When they fail, usually the module can't tell the position of the actuator and runs its motor looking for its signal. When it gets to the end of the gear it goes "pop - pop - pop".
Links below show/explain how to change actuator in your truck. Good luck.
I hope this helped you out, if so let me know by pressing the helpful button.
糟糕!我想改变我的主意。
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