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Ford Truck
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2009
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Ranger 2WD V6-4.0L
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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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Electronic Engine Controls
Electronic Engine Controls
Electronic Engine Controls
The ECT sensor (4.0L):
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sends the PCM a signal indicating engine coolant temperature.
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resistance decreases as coolant temperature increases.