Ranger 4WD V6-4.0L (2009)
![background image](/ford/ranger_4wd/v6-4.0l/Page-867001.png)
Intake Air Temperature Sensor: Description and Operation
Electronic Engine Controls
Electronic Engine Controls
The IAT sensor (4.0L):
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sends the PCM a signal indicating the temperature of the air entering the engine.
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resistance decreases as temperature increases.