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Home >> Dodge and Ram >> 1987 >> Pickup W100, 5.2 T, Standard >> Repair and Diagnosis >> Engine Performance >> System >> 3.7L/3.9/5.2L EFC System >> Operation >> Data Sensors >> Coolant Temperature Sensor/Switch
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Coolant Temperature Sensor/Switch

The coolant sensor and switch inform the SCC when engine has reached normal operating temperature. Coolant temperature information is used to control ignition timing while engine is cold.