Operation CHARM
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Ford Truck
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1997
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Expedition 4WD V8-5.4L SOHC VIN L
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Repair and Diagnosis
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Heating and Air Conditioning
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Air Door
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Description and Operation
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Fresh/Recirculation Air Doors
Fresh/Recirculation Air Doors
There are two sources of air available to the air distribution system: fresh air and recirculated air. Recirculated air is only used during MAX A/C and OFF function. The fresh/recirculated
air door
is vacuum controlled.