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Toyota Truck
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1991
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Pickup 4WD L4-144.4 2366cc 2.4L SOHC (22R-E)
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Repair and Diagnosis
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Sensors and Switches
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Sensors and Switches - Cooling System
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Engine - Coolant Temperature Sensor/Switch
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Radiator Cooling Fan Temperature Sensor / Switch
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Testing and Inspection
Radiator Cooling Fan Temperature Sensor / Switch: Testing and Inspection
Using an ohmmeter, measure sensor resistance. Resistance should be 1480-1580 ohms at 176°F. If resistance is not as specified, replace sensor.