Operation CHARM
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Chevy Truck
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1988
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R 20 P/U 2WD V8-454 7.4L
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Repair and Diagnosis
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Engine, Cooling and Exhaust
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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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Locations
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Coolant Temperature Sensor
Coolant Temperature Sensor
Engine Wiring (LH Side):
Top Front Of Engine, Near Coolant Inlet
Applicable to: R & V Series w/V8-454/7.4L TBI Engine
Coolant Temperature Sensor: