Operation CHARM
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Ford
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2000
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Expedition 2WD V8-4.6L SOHC VIN 6
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Repair and Diagnosis
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Powertrain Management
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Computers and Control Systems
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Coolant Temperature Sensor/Switch (For Computer)
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Description and Operation
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General
General
The ECT sensor:
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sends the PCM a signal indicating engine temperature.
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resistance decreases as coolant temperature increases.