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Old 12-28-2009, 01:04 PM
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Blend Door Actuator

Hi All,

The last two days my truck has been making a thumping/grinding type sound for about 3 seconds when I select the Defrost/Floor button on my heater.

This only happens when it sits overnight. The heater/AC works fine. Sounds doesn't repeat after warm up. Dropped it off at the dealer this am.

The dealer stated they will need to duplicate the sound and it may possibly be the Blend Door Actuator. Anyone ever have this done? The Service guy said if that is the issue then it most likely will be a "all day job"

Now that the holidays are over and no money, I'm starting to panic. Has anyone on here have had this repair done?
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  #2  
Old 12-28-2009, 05:45 PM
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Old 12-28-2009, 06:14 PM
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Quote:
Originally Posted by ebusa View Post
Hi All,

The last two days my truck has been making a thumping/grinding type sound for about 3 seconds when I select the Defrost/Floor button on my heater.

This only happens when it sits overnight. The heater/AC works fine. Sounds doesn't repeat after warm up. Dropped it off at the dealer this am.

The dealer stated they will need to duplicate the sound and it may possibly be the Blend Door Actuator. Anyone ever have this done? The Service guy said if that is the issue then it most likely will be a "all day job"

Now that the holidays are over and no money, I'm starting to panic. Has anyone on here have had this repair done?
The temperature blend door actuator is what controls the TEMPERATURE setting of the climate control NOT the mode select (defrost, vent, floor, etc.) like you describe. Your mode select is controlled by VACUUM, not an electric motor. I myself have replaced LOTS of blend door actuators on other Ford vehicles, but not F-Series Super Duty trucks.
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  #4  
Old 12-28-2009, 07:01 PM
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Quote:
Originally Posted by m-chan68 View Post
The temperature blend door actuator is what controls the TEMPERATURE setting of the climate control NOT the mode select (defrost, vent, floor, etc.) like you describe. Your mode select is controlled by VACUUM, not an electric motor. I myself have replaced LOTS of blend door actuators on other Ford vehicles, but not F-Series Super Duty trucks.
Thanks for the information! I will touch base with the dealer in the am since my truck is there overnight. Guess I just have to hope for the best on this one...
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