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Home >> Jeep >> 1983 >> Cherokee S, 5.9 N, 4WD, Standard >> Repair and Diagnosis >> Engine Performance >> System >> 4.2L Feedback Carburetor System >> Operation >> Data Sensors >> Coolant Temperature Switch
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Coolant Temperature Switch

This switch is an integral component of the coolant temperature control switch. This switch is controlled by coolant temperature and is normally closed. When closed, the switch indicates engine is cold (less than 135°F/57°C).